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Documentation: Census 2010
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Publisher: U.S. Census Bureau
Survey: Census 2010
Document: Summary File 1 Technical Documentation
citation:
Social Explorer, U.S. Census Bureau; 2010 Census of Population and Housing, Summary File 1: Technical Documentation, Issued June 2011.
Chapter Contents
Summary File 1 Technical Documentation
Chapter 2. How to Use This Product
2.1. Introduction
This chapter serves as a guide for data users to both the file and the technical documentation. Novice users trying to understand how to use the documentation and the file should read this chapter first.
2.2. Data Format and Access Tools
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Flat ASCII files by state are available for download via File Transfer Protocol (FTP) from American FactFinder on the U.S. Census Bureaus Web site http://www.census.gov/.

Users can utilize their standard software packages to manipulate the data, which can be easily imported. The geographic header record data are presented in fixed-length ASCII format, and the data file is in comma-separated ASCII format.

The DVD product contains an updated version of the Census 2000 Data Engine software that can aggregate user-defined areas, allows for multiple geographic selections, and creates customized variables and reports. Both the State files and National file will be included as a single DVD product. The software can export files in several formats, including databases and spreadsheets. Files can also be exported for use with popular GIS applications.
2.3. Geographic Hierarchy Primer
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The smallest component for all census geography is the block. Figure 2-3 at the end of this chapter provides an example of the various geographic hierarchies used, building from the block. Take some time to review this chart to become familiar with the different hierarchies. Begin reading the schematic from the bottom at the blocks entry. By following the lines, you can see the hierarchy very quickly. For example, follow blocks to block groups to census tracts to counties. This path indicates that census tracts and their sublevels in the hierarchy are uniquely identified within a county and do not cross county boundaries. Follow blocks to the school district hierarchy. This path tells you that school districts can cross jurisdictional boundaries but do not cross state lines. Figure 2-4 at the end of this chapter presents similar information for the American Indian area/Alaska Native area/Hawaiian home land hierarchy. Again, read the schematic from the bottom, beginning with the lowest level of geography, i.e., census blocks.

2.4. Geographic Header Record
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The geographic header record, Figure 2-5 at the end of this chapter, defines each field and provides its data dictionary reference name, field size, starting position, and data type. In addition, the presence or absence of an X in each summary level column is a guide to the presence or absence of geographic information for that particular summary level. For example, on the column for summary level 040, we see X for the first 10 fields, indicating that there will be information for those fields. In the county field, there is no X, indicating that there is no information for county in summary level 040. Since 040 is the summary level for state, this is perfectly logical.
2.4.1. New ANSI Codes
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The geographic header record includes, for the first time, space reserved to accommodate the transition from the Federal Information Processing Standards (FIPS) 55 Code Series to the American National Standards Institute (ANSI) Code Series for the identification of selected geographic entities. Each of nine fields has eight character spaces reserved for an eight-digit Geographic Names Information System (GNIS) identifier code that has been adopted as part of a new national standard. The GNIS is the nations official geographic names repository database and has been designated by the U.S. Board on Geographic Names as the official source of geographic names for use by the federal government and its contractors. Federal agencies are expected to adopt the GNIS ID as a standard code for public and federal data exchange. The fields identified in the geographic header record are:

Field length Field name
8

State (ANSI)
8

County (ANSI)
8

County Subdivision (ANSI)
8

Place (ANSI)
8

Consolidated City (ANSI)
8

American Indian Area/Alaska Native Area/Hawaiian Home Land (ANSI)
8

American Indian Tribal Subdivision (ANSI)
8

Alaska Native Regional Corporation (ANSI)
8

Subminor Civil Division (ANSI)

The GNIS identifier for states, counties, and equivalent areas are supplemental codes that do not replace the federal standard two-digit state and three-digit county codes also appearing in the header. The Census Bureau will continue to maintain and use in its unique geographic identifiers the existing five-digit codes for place, county subdivision, consolidated city, Alaska Native Regional Corporation, and subminor civil division and will assign and issue codes for new entities to meet customer needs, although these codes are not official or part of the new ANSI standards. The Census Bureau also will continue to maintain the existing four-digit codes for American Indian area/Alaska Native area/Hawaiian home land and three-digit codes for American Indian tribal subdivision.

2.5. Summary Level Sequence Chart
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The summary level sequence chart (Chapter 4) identifies each geographic level and provides the code that is in the SUMLEV field. The last geographic area type listed in the sequence identifies the geography of the summary level; the prior codes simply identify the geographic hierarchy.
  • 140 State-County-Census Tract
  • 144 State-County-Census Tract-American Indian area/Alaska Native area/Hawaiian home land
For summary level 140, the record contains data for a census tract, within a county, within a state. Census tracts are uniquely numbered within a county and do not cross county boundaries. Since counties do not cross state boundaries, this is a simple application. Thus, summary level 140 provides data for a complete census tract.

In summary level 144, the geography is more complex. The key is to work backward through the hierarchy. Thus, summary level 144 is a record for the portion of an American Indian Area (or an Alaska Native area or a Hawaiian home land) within a specific census tract within a specific county within a state.

When reading the summary level sequence chart, it is important to recognize that hyphens (-) separate the individual hierarchies, while slashes separate different types of geography (such as place/remainder) within the same hierarchy.

2.6. Data Structure and Segmentation
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The data in Summary File 1 and other 2010 Census summary files are segmented. This is done so that individual files will not have more than 255 fields, facilitating exporting into spreadsheet or database software. The data and the corresponding geographic information for an individual state is known as the file set. Because of the large size of the tables, the file set will be broken into 48 files: a geographic header record file and 47 table files. Figure 2-2 provides the file/table details.

It is easiest to think of the file set as a logical file. However, this logical file consists of 48 physical files: the geographic header record file and file01 through file47. This file design is comparable to that used in Census 2000.

A unique logical record number (LOGRECNO in the geographic header) is assigned to all files for a specific geographic entity. This is done so all records for that specific entity can be linked together across files. Besides the logical record number, other identifying fields also are carried over from the geographic header file to the table file. These are file identification (FILEID), state/U.S. abbreviation (STUSAB), characteristic iteration (CHARITER), and characteristic iteration file sequence number (CIFSN). See Figure 2-1 on the next page for an example.

The geographic header record is standard across all electronic data products from the 2010 Census. Some header fields that appear in both files (geographic header and file01), are not used. For example, CHARITER field will be used in the 2010 Census Summary File 2 but is always coded as 000 in the2010 Census Summary File 1.

2.6.1. Note to Users of Microsoft Access
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Due to the FieldSize property limitations within Microsoft Access, modifications to field types are required when importing the geographic header record file and file01 through file47:
  • All fields classified as numeric (N) should be imported as long integers.
  • AREALAND and AREAWATR should be imported as text.

Failure to make these changes may result in missing data upon import.


Figure 2.1. File Set Structure Schematic
Geographic header file File01 File02 File03-File47
Record 1      
FILEID FILEID FILEID Link fields shown on Files 01 and 02 are repeated for all files
STUSAB STUSAB STUSAB  
CHARITER CHARITER CHARITER  
CIFSN CIFSN CIFSN  
LOGRECNO (Record 1) LOGRECNO (Record 1) LOGRECNO (Record 1)  
       
Remainder of geographic header record for geographic area x Table P1 (1 cell) Table P2 (6 cells) See Figure 2-2 for distribution of the tables across files
       
Record 2      
FILEID FILEID FILEID Link fields shown on Files 01 and 02 are repeated for all files
STUSAB STUSAB STUSAB  
CHARITER CHARITER CHARITER  
CIFSN CIFSN CIFSN  
LOGRECNO (Record 2) LOGRECNO (Record 2) LOGRECNO (Record 2)  
       
Remainder of geographic header record for geographic area y Table P1 (1 cell) Table P2 (6 cells) See Figure 2-2 for distribution of the tables across files
       
Record 3      
FILEID FILEID FILEID Link fields shown on Files 01 and 02 are repeated for all files
STUSAB STUSAB STUSAB  
CHARITER CHARITER CHARITER  
CIFSN CIFSN CIFSN  
LOGRECNO (Record 3) LOGRECNO (Record 3) LOGRECNO (Record 3)  
       
Remainder of geographic header record for geographic area z Table P1 (1 cell) Table P2 (6 cells) See Figure 2-2 for distribution of the tables across files


Figure 2.2. File/Table Segmentation

Data file segment number Number of data cells Starting matrix number Ending matrix number
11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 P1 P1
2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 P2 P2
3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 P3 P9
4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 P10 P14
5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 P15 P30
6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 P31 P49
7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 P50 P12E
8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 P12F P17A
9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 P17B P28I
10 . . . . . . . . . . . . . . . . . . . . . . . . . . . 252 P29A P29I
11 . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 P31A P34E
12 . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 P34F P38E
13 . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 P38F P39H
14 . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 P39I P39I
15 . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 PCT1 PCT8
16 . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 PCT9 PCT11
17 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12 PCT12
18 . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 PCT13 PCT20
19 . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 PCT21 PCT22
20 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12A PCT12A
21 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12B PCT12B
22 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12C PCT12C
23 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12D PCT12D
24 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12E PCT12E
25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12F PCT12F
26 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12G PCT12G
27 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12H PCT12H
28 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12I PCT12I
29 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12J PCT12J
30 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12K PCT12K
31 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12L PCT12L
32 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12M PCT12M
33 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12N PCT12N
34 . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 PCT12O PCT12O
35 . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 PCT13A PCT13E
36 . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 PCT13F PCT19B
37 . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 PCT19C PCT20E
38 . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 PCT20F PCT22F
39 . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 PCT22G PCT22I
40 . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 PCO1 PCO6
41 . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 PCO7 PCO10
42 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 H1 H1
43 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 H2 H2
44 . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 H3 H11F
45 . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 H11G H17C
46 . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 H17D H17I
47 . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 HCT1 HCT4
1This is the number in the CIFSN field, beginning in position 12 of the summary data record.


Figure 2-3. Standard Hierarchy of Census Geographic Entities


Figure 2-4. Hierarchy of American Indian, Alaska Native, and Native Hawaiian Areas


Figure 2-5. Geographic Header Record - Summary File 1 State
Field Data dictionary reference Field size Starting position Data type Summary levels
40 50 60 67 70 80 91 101 140 144 150 154 155 158 160
RECORD CODES                                      
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X X
State/U . S . Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                      
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                      
Region REGION 1 26 A/N X X X X X X X X X X X X X X X
Division DIVISION 1 27 A/N X X X X X X X X X X X X X X X
State (FIPS) STATE 2 28 A/N X X X X X X X X X X X X X X X
County COUNTY 3 30 A/N   X X X X X X X X X X X X X  
FIPS County Class Code COUNTYCC 2 33 A/N   X X X X X X X X X X X X X  
County Size Code COUNTYSC 2 35 A/N   X X X X X X X X X X X X X  
County Subdivision (FIPS) COUSUB 5 37 A/N     X X X X X X              
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N     X X X X X X              
County Subdivision Size Code COUSUBSC 2 44 A/N     X X X X X X              
Place (FIPS) PLACE 5 46 A/N         X X X X         X X X
FIPS Place Class Code PLACECC 2 51 A/N         X X X X         X X X
Place Size Code PLACESC 2 53 A/N         X X X X         X X X
Census Tract TRACT 6 55 A/N           X X X X X X X   X  
Block Group BLKGRP 1 61 A/N             X X     X X      
Block BLOCK 4 62 A/N               X              
Internal Use Code IUC 2 66 A/N                              
Consolidated City (FIPS) CONCIT 5 68 A/N               X              
FIPS Consolidated City Class Code CONCITCC 2 73 A/N               X              
Consolidated City Size Code CONCITSC 2 75 A/N               X              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (Census) AIANHH 4 77 A/N               X   X   X      
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N               X   X   X      
FIPS American Indian Area/Alaska Native                                      
Area/Hawaiian Home Land Class                                      
Code AIANHHCC 2 86 A/N               X   X   X      
American Indian Trust Land/Hawaiian                                      
Home Land Indicator AIHHTLI 1 88 A/N               X   X   X      
American Indian Tribal Subdivision                                      
(Census) AITSCE 3 89 A/N               X              
American Indian Tribal Subdivision                                      
(FIPS) AITS 5 92 A/N               X              
FIPS American Indian Tribal Subdivision                                      
Class Code AITSCC 2 97 A/N               X              
Tribal Census Tract TTRACT 6 99 A/N               X              
Tribal Block Group TBLKGRP 1 105 A/N               X              
Alaska Native Regional Corporation                                      
(FIPS) ANRC 5 106 A/N               X              
FIPS Alaska Native Regional Corporation                                      
Class Code ANRCCC 2 111 A/N               X              
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area CBSA 5 113 A/N   X X X X X X X X X X X X X  
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Size Code CBSASC 2 118 A/N   X X X X X X X X X X X X X  
Metropolitan Division METDIV 5 120 A/N   X X X X X X X X X X X X X  
Combined Statistical Area CSA 3 125 A/N   X X X X X X X X X X X X X  
New England City and Town Area NECTA 5 128 A/N     X   X X X X              
New England City and Town Area Size                                      
Code NECTASC 2 133 A/N     X   X X X X              
New England City and Town Area                                      
Division NECTADIV 5 135 A/N     X   X X X X              
Combined New England City and Town                                      
Area CNECTA 3 140 A/N     X   X X X X              
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Principal City                                      
Indicator CBSAPCI 1 143 A/N         X X X X         X X X
New England City and Town Area Principal                                      
City Indicator NECTAPCI 1 144 A/N         X X X X         X X X
Urban Area UA 5 145 A/N                              
Urban Area Size Code UASC 2 150 A/N                              
Urban Area Type UATYPE 1 152 A/N                              
Urban/Rural UR 1 153 A/N                              
Congressional District (111th) CD 2 154 A/N               X              
State Legislative District (Upper Chamber)                                      
(Year 1) SLDU 3 156 A/N               X              
State Legislative District (Lower Chamber)                                      
(Year 1) SLDL 3 159 A/N               X              
Voting District VTD 6 162 A/N               X              
Voting District Indicator VTDI 1 168 A/N               X              
Reserved RESERVE2 3 169 A/N                              
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N               X              
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N       X       X              
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N       X       X              
School District (Elementary) SDELM 5 184 A/N               X              
School District (Secondary) SDSEC 5 189 A/N               X              
School District (Unified) SDUNI 5 194 A/N               X              
AREA CHARACTERISTICS                                      
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                      
Description (LSAD) Term-Part                                      
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X X
Geographic Change User Note                                      
Indicator GCUNI 1 318 A/N X X X X X       X       X   X
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N         X X X     X   X X X  
SPECIAL AREA CODES                                      
Reserved RESERVE3 6 363 A/N                              
Urban Growth Area UGA 5 369 A/N               X              
State (ANSI) STATENS 8 374 A/N X X X X X X X X X X X X X X X
County (ANSI) COUNTYNS 8 382 A/N   X X X X X X X X X X X X X  
County Subdivision (ANSI) COUSUBNS 8 390 A/N     X X X X X X              
Place (ANSI) PLACENS 8 398 A/N         X X X X         X X X
Consolidated City (ANSI) CONCITNS 8 406 A/N               X              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N               X   X   X      
American Indian Tribal Subdivision                                      
(ANSI) AITSNS 8 422 A/N               X              
Alaska Native Regional Corporation                                      
(ANSI) ANRCNS 8 430 A/N               X              
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N       X       X              
Congressional District (113th) CD113 2 446 A/N                              
Congressional District (114th) CD114 2 448 A/N                              
Congressional District (115th) CD115 2 450 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 2) SLDU2 3 452 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 3) SLDU3 3 455 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 4) SLDU4 3 458 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 2) SLDL2 3 461 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 3) SLDL3 3 464 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 4) SLDL4 3 467 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N               X   X   X      
Combined Statistical Area Size Code CSASC 2 472 A/N   X X X X X X X X X X X X X  
Combined NECTA Size Code CNECTASC 2 474 A/N     X   X X X X              
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N   X X X X X X X X X X X X X  
NECTA Metropolitan/Micropolitan                                      
Indicator NMEMI 1 477 A/N     X   X X X X              
Public Use Microdata Area PUMA 5 478 A/N                              
Reserved RESERVED 18 483 A/N                              


Field Data dictionary reference Field size Starting position Data type Summary Levels
          170 172 230 261 263 265 266 267 268 280 281 282 283 284 285
RECORD CODES                                      
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X X
State/U . S . Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                      
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                      
Region REGION 1 26 A/N X X X X X X X X X X X X X X X
Division DIVISION 1 27 A/N X X X X X X X X X X X X X X X
State (FIPS) STATE 2 28 A/N X X X X X X X X X X X X X X X
County COUNTY 3 30 A/N       X X X X X X     X     X
FIPS County Class Code COUNTYCC 2 33 A/N       X X X X X X     X     X
County Size Code COUNTYSC 2 35 A/N       X X X X X X     X     X
County Subdivision (FIPS) COUSUB 5 37 A/N       X X X X X X            
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N       X X X X X X            
County Subdivision Size Code COUSUBSC 2 44 A/N       X X X X X X            
Place (FIPS) PLACE 5 46 A/N   X     X   X   X            
FIPS Place Class Code PLACECC 2 51 A/N   X     X   X   X            
Place Size Code PLACESC 2 53 A/N   X     X   X   X            
Census Tract TRACT 6 55 A/N                              
Block Group BLKGRP 1 61 A/N                              
Block BLOCK 4 62 A/N                              
Internal Use Code IUC 2 66 A/N                              
Consolidated City (FIPS) CONCIT 5 68 A/N X X                          
FIPS Consolidated City Class Code CONCITCC 2 73 A/N X X                          
Consolidated City Size Code CONCITSC 2 75 A/N X X                          
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (Census) AIANHH 4 77 A/N       X X X X X X X X X X X X
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N       X X X X X X X X X X X X
FIPS American Indian Area/Alaska Native                                      
Area/Hawaiian Home Land Class                                      
Code AIANHHCC 2 86 A/N       X X X X X X X X X X X X
American Indian Trust Land/Hawaiian                                      
Home Land Indicator AIHHTLI 1 88 A/N       X X X X X X X X X X X X
American Indian Tribal Subdivision                                      
(Census) AITSCE 3 89 A/N                     X     X  
American Indian Tribal Subdivision                                      
(FIPS) AITS 5 92 A/N                     X     X  
FIPS American Indian Tribal Subdivision                                      
Class Code AITSCC 2 97 A/N                     X     X  
Tribal Census Tract TTRACT 6 99 A/N                              
Tribal Block Group TBLKGRP 1 105 A/N                              
Alaska Native Regional Corporation                                      
(FIPS) ANRC 5 106 A/N     X                        
FIPS Alaska Native Regional Corporation                                      
Class Code ANRCCC 2 111 A/N     X                        
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area CBSA 5 113 A/N       X X X X X X     X     X
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Size Code CBSASC 2 118 A/N       X X X X X X     X     X
Metropolitan Division METDIV 5 120 A/N       X X X X X X     X     X
Combined Statistical Area CSA 3 125 A/N       X X X X X X     X     X
New England City and Town Area NECTA 5 128 A/N       X X X X X X            
New England City and Town Area Size                                      
Code NECTASC 2 133 A/N       X X X X X X            
New England City and Town Area                                      
Division NECTADIV 5 135 A/N       X X X X X X            
Combined New England City and Town                                      
Area CNECTA 3 140 A/N       X X X X X X            
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Principal City                                      
Indicator CBSAPCI 1 143 A/N   X     X   X   X            
New England City and Town Area Principal                                      
City Indicator NECTAPCI 1 144 A/N   X     X   X   X            
Urban Area UA 5 145 A/N                              
Urban Area Size Code UASC 2 150 A/N                              
Urban Area Type UATYPE 1 152 A/N                              
Urban/Rural UR 1 153 A/N                              
Congressional District (111th) CD 2 154 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 1) SLDU 3 156 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 1) SLDL 3 159 A/N                              
Voting District VTD 6 162 A/N                              
Voting District Indicator VTDI 1 168 A/N                              
Reserved RESERVE2 3 169 A/N                              
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                              
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                              
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                              
School District (Elementary) SDELM 5 184 A/N                              
School District (Secondary) SDSEC 5 189 A/N                              
School District (Unified) SDUNI 5 194 A/N                              
AREA CHARACTERISTICS                                      
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                      
Description (LSAD) Term-Part                                      
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X X
Geographic Change User Note                                      
Indicator GCUNI 1 318 A/N X X X             X X X X   X
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N   X   X X X X X X X X X X X X
SPECIAL AREA CODES                                      
Reserved RESERVE3 6 363 A/N                              
Urban Growth Area UGA 5 369 A/N                              
State (ANSI) STATENS 8 374 A/N X X X X X X X X X X X X X X X
County (ANSI) COUNTYNS 8 382 A/N       X X X X X X     X     X
County Subdivision (ANSI) COUSUBNS 8 390 A/N       X X X X X X            
Place (ANSI) PLACENS 8 398 A/N   X     X   X   X            
Consolidated City (ANSI) CONCITNS 8 406 A/N X X                          
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N       X X X X X X X X X X X X
American Indian Tribal Subdivision                                      
(ANSI) AITSNS 8 422 A/N                     X     X  
Alaska Native Regional Corporation                                      
(ANSI) ANRCNS 8 430 A/N     X                        
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                              
Congressional District (113th) CD113 2 446 A/N                              
Congressional District (114th) CD114 2 448 A/N                              
Congressional District (115th) CD115 2 450 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 2) SLDU2 3 452 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 3) SLDU3 3 455 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 4) SLDU4 3 458 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 2) SLDL2 3 461 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 3) SLDL3 3 464 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 4) SLDL4 3 467 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N       X X X X X X X X X X X X
Combined Statistical Area Size Code CSASC 2 472 A/N       X X X X X X     X     X
Combined NECTA Size Code CNECTASC 2 474 A/N       X X X X X X            
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N       X X X X X X     X     X
NECTA Metropolitan/Micropolitan                                      
Indicator NMEMI 1 477 A/N       X X X X X X            
Public Use Microdata Area PUMA 5 478 A/N                              
Reserved RESERVED 18 483 A/N                              


Field Data dictionary reference Field size Starting position Data type Summary levels
          286 287 288 320 321 322 323 324 340 341 345 346 360 361 362
RECORD CODES                                      
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X X
State/U . S . Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                      
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                      
Region REGION 1 26 A/N X X X X X X X X X X X X X X X
Division DIVISION 1 27 A/N X X X X X X X X X X X X X X X
State (FIPS) STATE 2 28 A/N X X X X X X X X X X X X X X X
County COUNTY 3 30 A/N     X     X   X             X
FIPS County Class Code COUNTYCC 2 33 A/N     X     X   X             X
County Size Code COUNTYSC 2 35 A/N     X     X   X             X
County Subdivision (FIPS) COUSUB 5 37 A/N                              
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N                              
County Subdivision Size Code COUSUBSC 2 44 A/N                              
Place (FIPS) PLACE 5 46 A/N         X                 X  
FIPS Place Class Code PLACECC 2 51 A/N         X                 X  
Place Size Code PLACESC 2 53 A/N         X                 X  
Census Tract TRACT 6 55 A/N                              
Block Group BLKGRP 1 61 A/N                              
Block BLOCK 4 62 A/N                              
Internal Use Code IUC 2 66 A/N                              
Consolidated City (FIPS) CONCIT 5 68 A/N                              
FIPS Consolidated City Class Code CONCITCC 2 73 A/N                              
Consolidated City Size Code CONCITSC 2 75 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (Census) AIANHH 4 77 A/N X X X                        
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N X X X                        
FIPS American Indian Area/Alaska Native                                      
Area/Hawaiian Home Land Class                                      
Code AIANHHCC 2 86 A/N X X X                        
American Indian Trust Land/Hawaiian                                      
Home Land Indicator AIHHTLI 1 88 A/N X X X                        
American Indian Tribal Subdivision                                      
(Census) AITSCE 3 89 A/N   X                          
American Indian Tribal Subdivision                                      
(FIPS) AITS 5 92 A/N   X                          
FIPS American Indian Tribal Subdivision                                      
Class Code AITSCC 2 97 A/N   X                          
Tribal Census Tract TTRACT 6 99 A/N                              
Tribal Block Group TBLKGRP 1 105 A/N                              
Alaska Native Regional Corporation                                      
(FIPS) ANRC 5 106 A/N                              
FIPS Alaska Native Regional Corporation                                      
Class Code ANRCCC 2 111 A/N                              
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area CBSA 5 113 A/N     X X X X X X   X          
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Size Code CBSASC 2 118 A/N     X X X X X X   X          
Metropolitan Division METDIV 5 120 A/N     X     X X X              
Combined Statistical Area CSA 3 125 A/N     X X X X X X X X          
New England City and Town Area NECTA 5 128 A/N                       X X X X
New England City and Town Area Size                                      
Code NECTASC 2 133 A/N                       X X X X
New England City and Town Area                                      
Division NECTADIV 5 135 A/N                              
Combined New England City and Town                                      
Area CNECTA 3 140 A/N                     X X X X X
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Principal City                                      
Indicator CBSAPCI 1 143 A/N         X                    
New England City and Town Area Principal                                      
City Indicator NECTAPCI 1 144 A/N                           X  
Urban Area UA 5 145 A/N                              
Urban Area Size Code UASC 2 150 A/N                              
Urban Area Type UATYPE 1 152 A/N                              
Urban/Rural UR 1 153 A/N                              
Congressional District (111th) CD 2 154 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 1) SLDU 3 156 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 1) SLDL 3 159 A/N                              
Voting District VTD 6 162 A/N                              
Voting District Indicator VTDI 1 168 A/N                              
Reserved RESERVE2 3 169 A/N                              
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                              
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                              
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                              
School District (Elementary) SDELM 5 184 A/N                              
School District (Secondary) SDSEC 5 189 A/N                              
School District (Unified) SDUNI 5 194 A/N                              
AREA CHARACTERISTICS                                      
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                      
Description (LSAD) Term-Part                                      
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X X
Geographic Change User Note                                      
Indicator GCUNI 1 318 A/N X   X                        
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N X X X X X   X   X X X X X X X
SPECIAL AREA CODES                                      
Reserved RESERVE3 6 363 A/N                              
Urban Growth Area UGA 5 369 A/N                              
State (ANSI) STATENS 8 374 A/N X X X X X X X X X X X X X X X
County (ANSI) COUNTYNS 8 382 A/N     X     X   X             X
County Subdivision (ANSI) COUSUBNS 8 390 A/N                              
Place (ANSI) PLACENS 8 398 A/N         X                 X  
Consolidated City (ANSI) CONCITNS 8 406 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N X X X                        
American Indian Tribal Subdivision                                      
(ANSI) AITSNS 8 422 A/N   X                          
Alaska Native Regional Corporation                                      
(ANSI) ANRCNS 8 430 A/N                              
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                              
Congressional District (113th) CD113 2 446 A/N                              
Congressional District (114th) CD114 2 448 A/N                              
Congressional District (115th) CD115 2 450 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 2) SLDU2 3 452 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 3) SLDU3 3 455 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 4) SLDU4 3 458 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 2) SLDL2 3 461 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 3) SLDL3 3 464 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 4) SLDL4 3 467 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N X X X                        
Combined Statistical Area Size Code CSASC 2 472 A/N     X X X X X X X X          
Combined NECTA Size Code CNECTASC 2 474 A/N                     X X X X X
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N     X X X X X X   X          
NECTA Metropolitan/Micropolitan                                      
Indicator NMEMI 1 477 A/N                       X X X X
Public Use Microdata Area PUMA 5 478 A/N                              
Reserved RESERVED 18 483 A/N                              


Field Data dictionary reference Field size Starting position Data type Summary levels
          363 364 365 366 500 510 511 521 531 541 542 550 551 552 553
RECORD CODES                                      
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X X
State/U . S . Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                      
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                      
Region REGION 1 26 A/N X X X X X X X X X X X X X X X
Division DIVISION 1 27 A/N X X X X X X X X X X X X X X X
State (FIPS) STATE 2 28 A/N X X X X X X X X X X X X X X X
County COUNTY 3 30 A/N X   X X   X X X              
FIPS County Class Code COUNTYCC 2 33 A/N X   X X   X X X              
County Size Code COUNTYSC 2 35 A/N X   X X   X X X              
County Subdivision (FIPS) COUSUB 5 37 A/N X     X       X              
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N X     X       X              
County Subdivision Size Code COUSUBSC 2 44 A/N X     X       X              
Place (FIPS) PLACE 5 46 A/N                 X   X        
FIPS Place Class Code PLACECC 2 51 A/N                 X   X        
Place Size Code PLACESC 2 53 A/N                 X   X        
Census Tract TRACT 6 55 A/N             X                
Block Group BLKGRP 1 61 A/N                              
Block BLOCK 4 62 A/N                              
Internal Use Code IUC 2 66 A/N                              
Consolidated City (FIPS) CONCIT 5 68 A/N                   X X        
FIPS Consolidated City Class Code CONCITCC 2 73 A/N                   X X        
Consolidated City Size Code CONCITSC 2 75 A/N                   X X        
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (Census) AIANHH 4 77 A/N                       X X X X
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N                       X X X X
FIPS American Indian Area/Alaska Native                                      
Area/Hawaiian Home Land Class                                      
Code AIANHHCC 2 86 A/N                       X X X X
American Indian Trust Land/Hawaiian                                      
Home Land Indicator AIHHTLI 1 88 A/N                       X X X X
American Indian Tribal Subdivision                                      
(Census) AITSCE 3 89 A/N                             X
American Indian Tribal Subdivision                                      
(FIPS) AITS 5 92 A/N                             X
FIPS American Indian Tribal Subdivision                                      
Class Code AITSCC 2 97 A/N                             X
Tribal Census Tract TTRACT 6 99 A/N                              
Tribal Block Group TBLKGRP 1 105 A/N                              
Alaska Native Regional Corporation                                      
(FIPS) ANRC 5 106 A/N                              
FIPS Alaska Native Regional Corporation                                      
Class Code ANRCCC 2 111 A/N                              
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area CBSA 5 113 A/N           X X X              
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Size Code CBSASC 2 118 A/N           X X X              
Metropolitan Division METDIV 5 120 A/N           X X X              
Combined Statistical Area CSA 3 125 A/N           X X X              
New England City and Town Area NECTA 5 128 A/N X X X X       X              
New England City and Town Area Size                                      
Code NECTASC 2 133 A/N X X X X       X              
New England City and Town Area                                      
Division NECTADIV 5 135 A/N X X X X       X              
Combined New England City and Town                                      
Area CNECTA 3 140 A/N X X X X       X              
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Principal City                                      
Indicator CBSAPCI 1 143 A/N                 X   X        
New England City and Town Area Principal                                      
City Indicator NECTAPCI 1 144 A/N                 X   X        
Urban Area UA 5 145 A/N                              
Urban Area Size Code UASC 2 150 A/N                              
Urban Area Type UATYPE 1 152 A/N                              
Urban/Rural UR 1 153 A/N                              
Congressional District (111th) CD 2 154 A/N         X X X X X X X X X X X
State Legislative District (Upper Chamber)                                      
(Year 1) SLDU 3 156 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 1) SLDL 3 159 A/N                              
Voting District VTD 6 162 A/N                              
Voting District Indicator VTDI 1 168 A/N                              
Reserved RESERVE2 3 169 A/N                              
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                              
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                              
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                              
School District (Elementary) SDELM 5 184 A/N                              
School District (Secondary) SDSEC 5 189 A/N                              
School District (Unified) SDUNI 5 194 A/N                              
AREA CHARACTERISTICS                                      
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                      
Description (LSAD) Term-Part                                      
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X X
Geographic Change User Note                                      
Indicator GCUNI 1 318 A/N                              
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N   X X     X X X X X X X X X X
SPECIAL AREA CODES                                      
Reserved RESERVE3 6 363 A/N                              
Urban Growth Area UGA 5 369 A/N                              
State (ANSI) STATENS 8 374 A/N X X X X X X X X X X X X X X X
County (ANSI) COUNTYNS 8 382 A/N X   X X   X X X              
County Subdivision (ANSI) COUSUBNS 8 390 A/N X     X       X              
Place (ANSI) PLACENS 8 398 A/N                 X   X        
Consolidated City (ANSI) CONCITNS 8 406 A/N                   X X        
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N                       X X X X
American Indian Tribal Subdivision                                      
(ANSI) AITSNS 8 422 A/N                             X
Alaska Native Regional Corporation                                      
(ANSI) ANRCNS 8 430 A/N                              
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                              
Congressional District (113th) CD113 2 446 A/N                              
Congressional District (114th) CD114 2 448 A/N                              
Congressional District (115th) CD115 2 450 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 2) SLDU2 3 452 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 3) SLDU3 3 455 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 4) SLDU4 3 458 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 2) SLDL2 3 461 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 3) SLDL3 3 464 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 4) SLDL4 3 467 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N                       X X X X
Combined Statistical Area Size Code CSASC 2 472 A/N           X X X              
Combined NECTA Size Code CNECTASC 2 474 A/N X X X X       X              
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N           X X X              
NECTA Metropolitan/Micropolitan                                      
Indicator NMEMI 1 477 A/N X X X X       X              
Public Use Microdata Area PUMA 5 478 A/N                              
Reserved RESERVED 18 483 A/N                              


Field Data dictionary reference Field size Starting position Data type Summary levels
          554 555 560 610 612 613 614 615 616 620 622 623 624 625 626
RECORD CODES                                      
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X X
State/U . S . Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                      
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                      
Region REGION 1 26 A/N X X X X X X X X X X X X X X X
Division DIVISION 1 27 A/N X X X X X X X X X X X X X X X
State (FIPS) STATE 2 28 A/N X X X X X X X X X X X X X X X
County COUNTY 3 30 A/N         X X         X X      
FIPS County Class Code COUNTYCC 2 33 A/N         X X         X X      
County Size Code COUNTYSC 2 35 A/N         X X         X X      
County Subdivision (FIPS) COUSUB 5 37 A/N           X           X      
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N           X           X      
County Subdivision Size Code COUSUBSC 2 44 A/N           X           X      
Place (FIPS) PLACE 5 46 A/N             X           X    
FIPS Place Class Code PLACECC 2 51 A/N             X           X    
Place Size Code PLACESC 2 53 A/N             X           X    
Census Tract TRACT 6 55 A/N                              
Block Group BLKGRP 1 61 A/N                              
Block BLOCK 4 62 A/N                              
Internal Use Code IUC 2 66 A/N                              
Consolidated City (FIPS) CONCIT 5 68 A/N               X           X  
FIPS Consolidated City Class Code CONCITCC 2 73 A/N               X           X  
Consolidated City Size Code CONCITSC 2 75 A/N               X           X  
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (Census) AIANHH 4 77 A/N X X             X           X
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N X X             X           X
FIPS American Indian Area/Alaska Native                                      
Area/Hawaiian Home Land Class                                      
Code AIANHHCC 2 86 A/N X X             X           X
American Indian Trust Land/Hawaiian                                      
Home Land Indicator AIHHTLI 1 88 A/N X X             X           X
American Indian Tribal Subdivision                                      
(Census) AITSCE 3 89 A/N X X                          
American Indian Tribal Subdivision                                      
(FIPS) AITS 5 92 A/N X X                          
FIPS American Indian Tribal Subdivision                                      
Class Code AITSCC 2 97 A/N X X                          
Tribal Census Tract TTRACT 6 99 A/N                              
Tribal Block Group TBLKGRP 1 105 A/N                              
Alaska Native Regional Corporation                                      
(FIPS) ANRC 5 106 A/N     X                        
FIPS Alaska Native Regional Corporation                                      
Class Code ANRCCC 2 111 A/N     X                        
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area CBSA 5 113 A/N         X X         X X      
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Size Code CBSASC 2 118 A/N         X X         X X      
Metropolitan Division METDIV 5 120 A/N         X X         X X      
Combined Statistical Area CSA 3 125 A/N         X X         X X      
New England City and Town Area NECTA 5 128 A/N           X           X      
New England City and Town Area Size                                      
Code NECTASC 2 133 A/N           X           X      
New England City and Town Area                                      
Division NECTADIV 5 135 A/N           X           X      
Combined New England City and Town                                      
Area CNECTA 3 140 A/N           X           X      
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Principal City                                      
Indicator CBSAPCI 1 143 A/N             X           X    
New England City and Town Area Principal                                      
City Indicator NECTAPCI 1 144 A/N             X           X    
Urban Area UA 5 145 A/N                              
Urban Area Size Code UASC 2 150 A/N                              
Urban Area Type UATYPE 1 152 A/N                              
Urban/Rural UR 1 153 A/N                              
Congressional District (111th) CD 2 154 A/N X X X                        
State Legislative District (Upper Chamber)                                      
(Year 1) SLDU 3 156 A/N       X X X X X X            
State Legislative District (Lower Chamber)                                      
(Year 1) SLDL 3 159 A/N                   X X X X X X
Voting District VTD 6 162 A/N                              
Voting District Indicator VTDI 1 168 A/N                              
Reserved RESERVE2 3 169 A/N                              
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                              
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                              
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                              
School District (Elementary) SDELM 5 184 A/N                              
School District (Secondary) SDSEC 5 189 A/N                              
School District (Unified) SDUNI 5 194 A/N                              
AREA CHARACTERISTICS                                      
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                      
Description (LSAD) Term-Part                                      
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X X
Geographic Change User Note                                      
Indicator GCUNI 1 318 A/N                              
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N X X X   X X X X X   X X X X X
SPECIAL AREA CODES                                      
Reserved RESERVE3 6 363 A/N                              
Urban Growth Area UGA 5 369 A/N                              
State (ANSI) STATENS 8 374 A/N X X X X X X X X X X X X X X X
County (ANSI) COUNTYNS 8 382 A/N         X X         X X      
County Subdivision (ANSI) COUSUBNS 8 390 A/N           X           X      
Place (ANSI) PLACENS 8 398 A/N             X           X    
Consolidated City (ANSI) CONCITNS 8 406 A/N               X           X  
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N X X             X           X
American Indian Tribal Subdivision                                      
(ANSI) AITSNS 8 422 A/N X X                          
Alaska Native Regional Corporation                                      
(ANSI) ANRCNS 8 430 A/N     X                        
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                              
Congressional District (113th) CD113 2 446 A/N                              
Congressional District (114th) CD114 2 448 A/N                              
Congressional District (115th) CD115 2 450 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 2) SLDU2 3 452 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 3) SLDU3 3 455 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 4) SLDU4 3 458 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 2) SLDL2 3 461 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 3) SLDL3 3 464 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 4) SLDL4 3 467 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N X X             X           X
Combined Statistical Area Size Code CSASC 2 472 A/N         X X         X X      
Combined NECTA Size Code CNECTASC 2 474 A/N           X           X      
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N         X X         X X      
NECTA Metropolitan/Micropolitan                                      
Indicator NMEMI 1 477 A/N           X           X      
Public Use Microdata Area PUMA 5 478 A/N                              
Reserved RESERVED 18 483 A/N                              
                                       


Field Data dictionary reference Field size Starting position Data type Summary levels
          631 634 636 639 644 645 646 647 648 649 871 881 950 960 970
RECORD CODES                                      
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X X
State/U . S . Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                      
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                      
Region REGION 1 26 A/N X X X X X X X X X X X X X X X
Division DIVISION 1 27 A/N X X X X X X X X X X X X X X X
State (FIPS) STATE 2 28 A/N X X X X X X X X X X X X X X X
County COUNTY 3 30 A/N X   X                 X      
FIPS County Class Code COUNTYCC 2 33 A/N X   X                 X      
County Size Code COUNTYSC 2 35 A/N X   X                 X      
County Subdivision (FIPS) COUSUB 5 37 A/N                              
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N                              
County Subdivision Size Code COUSUBSC 2 44 A/N                              
Place (FIPS) PLACE 5 46 A/N         X X                  
FIPS Place Class Code PLACECC 2 51 A/N         X X                  
Place Size Code PLACESC 2 53 A/N         X X                  
Census Tract TRACT 6 55 A/N X   X                        
Block Group BLKGRP 1 61 A/N                              
Block BLOCK 4 62 A/N                              
Internal Use Code IUC 2 66 A/N                              
Consolidated City (FIPS) CONCIT 5 68 A/N         X X                  
FIPS Consolidated City Class Code CONCITCC 2 73 A/N         X X                  
Consolidated City Size Code CONCITSC 2 75 A/N         X X                  
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (Census) AIANHH 4 77 A/N             X X X X          
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N             X X X X          
FIPS American Indian Area/Alaska Native                                      
Area/Hawaiian Home Land Class                                      
Code AIANHHCC 2 86 A/N             X X X X          
American Indian Trust Land/Hawaiian                                      
Home Land Indicator AIHHTLI 1 88 A/N             X X X X          
American Indian Tribal Subdivision                                      
(Census) AITSCE 3 89 A/N                              
American Indian Tribal Subdivision                                      
(FIPS) AITS 5 92 A/N                              
FIPS American Indian Tribal Subdivision                                      
Class Code AITSCC 2 97 A/N                              
Tribal Census Tract TTRACT 6 99 A/N                              
Tribal Block Group TBLKGRP 1 105 A/N                              
Alaska Native Regional Corporation                                      
(FIPS) ANRC 5 106 A/N   X   X                      
FIPS Alaska Native Regional Corporation                                      
Class Code ANRCCC 2 111 A/N   X   X                      
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area CBSA 5 113 A/N X   X                 X      
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Size Code CBSASC 2 118 A/N X   X                 X      
Metropolitan Division METDIV 5 120 A/N X   X                 X      
Combined Statistical Area CSA 3 125 A/N X   X                 X      
New England City and Town Area NECTA 5 128 A/N                              
New England City and Town Area Size                                      
Code NECTASC 2 133 A/N                              
New England City and Town Area                                      
Division NECTADIV 5 135 A/N                              
Combined New England City and Town                                      
Area CNECTA 3 140 A/N                              
Metropolitan Statistical Area/Micropolitan                                      
Statistical Area Principal City                                      
Indicator CBSAPCI 1 143 A/N         X X                  
New England City and Town Area Principal                                      
City Indicator NECTAPCI 1 144 A/N         X X                  
Urban Area UA 5 145 A/N                              
Urban Area Size Code UASC 2 150 A/N                              
Urban Area Type UATYPE 1 152 A/N                              
Urban/Rural UR 1 153 A/N                              
Congressional District (111th) CD 2 154 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 1) SLDU 3 156 A/N X X     X   X   X            
State Legislative District (Lower Chamber)                                      
(Year 1) SLDL 3 159 A/N     X X   X   X   X          
Voting District VTD 6 162 A/N                              
Voting District Indicator VTDI 1 168 A/N                              
Reserved RESERVE2 3 169 A/N                              
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                     X X      
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                              
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                              
School District (Elementary) SDELM 5 184 A/N                         X    
School District (Secondary) SDSEC 5 189 A/N                           X  
School District (Unified) SDUNI 5 194 A/N                             X
AREA CHARACTERISTICS                                      
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                      
Description (LSAD) Term-Part                                      
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X X
Geographic Change User Note                                      
Indicator GCUNI 1 318 A/N                         X X X
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N X X X X X X X X X X X X      
SPECIAL AREA CODES                                      
Reserved RESERVE3 6 363 A/N                              
Urban Growth Area UGA 5 369 A/N                              
State (ANSI) STATENS 8 374 A/N X X X X X X X X X X X X X X X
County (ANSI) COUNTYNS 8 382 A/N X   X                 X      
County Subdivision (ANSI) COUSUBNS 8 390 A/N                              
Place (ANSI) PLACENS 8 398 A/N         X X                  
Consolidated City (ANSI) CONCITNS 8 406 A/N         X X                  
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N             X X X X          
American Indian Tribal Subdivision                                      
(ANSI) AITSNS 8 422 A/N                              
Alaska Native Regional Corporation                                      
(ANSI) ANRCNS 8 430 A/N   X   X                      
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                              
Congressional District (113th) CD113 2 446 A/N                              
Congressional District (114th) CD114 2 448 A/N                              
Congressional District (115th) CD115 2 450 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 2) SLDU2 3 452 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 3) SLDU3 3 455 A/N                              
State Legislative District (Upper Chamber)                                      
(Year 4) SLDU4 3 458 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 2) SLDL2 3 461 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 3) SLDL3 3 464 A/N                              
State Legislative District (Lower Chamber)                                      
(Year 4) SLDL4 3 467 A/N                              
American Indian Area/Alaska Native Area/                                      
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N             X X X X          
Combined Statistical Area Size Code CSASC 2 472 A/N X   X                 X      
Combined NECTA Size Code CNECTASC 2 474 A/N                              
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N X   X                 X      
NECTA Metropolitan/Micropolitan                                      
Indicator NMEMI 1 477 A/N                              
Public Use Microdata Area PUMA 5 478 A/N                              
Reserved RESERVED 18 483 A/N                              


Figure 2-5. Geographic Header Record - Summary File 1 National Update
Field Data dictionary reference Field size Starting position Data type Summary levels
          10 20 30 40 50 60 70 155 160 170 172 230 250 251
RECORD CODES                                    
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X
State/U S Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                    
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                    
Region REGION 1 26 A/N   X X X X X X X X X X X    
Division DIVISION 1 27 A/N     X X X X X X X X X X    
State (FIPS) STATE 2 28 A/N       X X X X X X X X X    
County COUNTY 3 30 A/N         X X X X            
FIPS County Class Code COUNTYCC 2 33 A/N         X X X X            
County Size Code COUNTYSC 2 35 A/N         X X X X            
County Subdivision (FIPS) COUSUB 5 37 A/N           X X              
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N           X X              
County Subdivision Size Code COUSUBSC 2 44 A/N           X X              
Place (FIPS) PLACE 5 46 A/N             X X X   X      
FIPS Place Class Code PLACECC 2 51 A/N             X X X   X      
Place Size Code PLACESC 2 53 A/N             X X X   X      
Census Tract TRACT 6 55 A/N                            
Block Group BLKGRP 1 61 A/N                            
Block BLOCK 4 62 A/N                            
Internal Use Code IUC 2 66 A/N                            
Consolidated City (FIPS) CONCIT 5 68 A/N                   X X      
FIPS Consolidated City Class Code CONCITCC 2 73 A/N                   X X      
Consolidated City Size Code CONCITSC 2 75 A/N                   X X      
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (Census) AIANHH 4 77 A/N                         X X
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N                         X X
FIPS American Indian Area/Alaska Native                                    
Area/Hawaiian Home Land Class                                    
Code AIANHHCC 2 86 A/N                         X X
American Indian Trust Land/Hawaiian                                    
Home Land Indicator AIHHTLI 1 88 A/N                         X X
American Indian Tribal Subdivision                                    
(Census) AITSCE 3 89 A/N                           X
American Indian Tribal Subdivision                                    
(FIPS) AITS 5 92 A/N                           X
FIPS American Indian Tribal Subdivision                                    
Class Code AITSCC 2 97 A/N                           X
Tribal Census Tract TTRACT 6 99 A/N                            
Tribal Block Group TBLKGRP 1 105 A/N                            
Alaska Native Regional Corporation                                    
(FIPS) ANRC 5 106 A/N                       X    
FIPS Alaska Native Regional Corporation                                    
Class Code ANRCCC 2 111 A/N                       X    
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area CBSA 5 113 A/N         X X X X            
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Size Code CBSASC 2 118 A/N         X X X X            
Metropolitan Division METDIV 5 120 A/N         X X X X            
Combined Statistical Area CSA 3 125 A/N         X X X X            
New England City and Town Area NECTA 5 128 A/N           X X              
New England City and Town Area Size                                    
Code NECTASC 2 133 A/N           X X              
New England City and Town Area                                    
Division NECTADIV 5 135 A/N           X X              
Combined New England City and Town                                    
Area CNECTA 3 140 A/N           X X              
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Principal City                                    
Indicator CBSAPCI 1 143 A/N             X X X   X      
New England City and Town Area Principal                                    
City Indicator NECTAPCI 1 144 A/N             X X X   X      
Urban Area UA 5 145 A/N                            
Urban Area Size Code UASC 2 150 A/N                            
Urban Area Type UATYPE 1 152 A/N                            
Urban/Rural UR 1 153 A/N                            
Congressional District (111th) CD 2 154 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 1) SLDU 3 156 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 1) SLDL 3 159 A/N                            
Voting District VTD 6 162 A/N                            
Voting District Indicator VTDI 1 168 A/N                            
Reserved RESERVE2 3 169 A/N                            
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                            
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                            
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                            
School District (Elementary) SDELM 5 184 A/N                            
School District (Secondary) SDSEC 5 189 A/N                            
School District (Unified) SDUNI 5 194 A/N                            
AREA CHARACTERISTICS                                    
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                    
Description (LSAD) Term-Part                                    
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X
Geographic Change User Note                                    
Indicator GCUNI 1 318 A/N   X X X X X X X X X X X X X
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N             X X     X      
SPECIAL AREA CODES                                    
Reserved RESERVE3 6 363 A/N                            
Urban Growth Area UGA 5 369 A/N                            
State (ANSI) STATENS 8 374 A/N       X X X X X X X X X    
County (ANSI) COUNTYNS 8 382 A/N         X X X X            
County Subdivision (ANSI) COUSUBNS 8 390 A/N           X X              
Place (ANSI) PLACENS 8 398 A/N             X X X   X      
Consolidated City (ANSI) CONCITNS 8 406 A/N                   X X      
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N                         X X
American Indian Tribal Subdivision                                    
(ANSI) AITSNS 8 422 A/N                           X
Alaska Native Regional Corporation                                    
(ANSI) ANRCNS 8 430 A/N                       X    
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                            
Congressional District (113th) CD113 2 446 A/N                            
Congressional District (114th) CD114 2 448 A/N                            
Congressional District (115th) CD115 2 450 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 2) SLDU2 3 452 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 3) SLDU3 3 455 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 4) SLDU4 3 458 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 2) SLDL2 3 461 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 3) SLDL3 3 464 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 4) SLDL4 3 467 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N                         X X
Combined Statistical Area Size Code CSASC 2 472 A/N         X X X X            
Combined NECTA Size Code CNECTASC 2 474 A/N           X X              
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N         X X X X            
NECTA Metropolitan/Micropolitan                                    
Indicator NMEMI 1 477 A/N           X X              
Public Use Microdata Area PUMA 5 478 A/N                            
Reserved RESERVED 18 483 A/N                            


Field Data dictionary reference Field size Starting position Data type Summary Levels
          252 253 254 255 256 257 258 259 260 262 264 269 270 271
RECORD CODES                                    
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X
State/U S Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                    
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                    
Region REGION 1 26 A/N                 X X X X X X
Division DIVISION 1 27 A/N                 X X X X X X
State (FIPS) STATE 2 28 A/N                 X X X X X X
County COUNTY 3 30 A/N                         X X
FIPS County Class Code COUNTYCC 2 33 A/N                         X X
County Size Code COUNTYSC 2 35 A/N                         X X
County Subdivision (FIPS) COUSUB 5 37 A/N                           X
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N                           X
County Subdivision Size Code COUSUBSC 2 44 A/N                           X
Place (FIPS) PLACE 5 46 A/N                       X    
FIPS Place Class Code PLACECC 2 51 A/N                       X    
Place Size Code PLACESC 2 53 A/N                       X    
Census Tract TRACT 6 55 A/N                            
Block Group BLKGRP 1 61 A/N                            
Block BLOCK 4 62 A/N                            
Internal Use Code IUC 2 66 A/N                            
Consolidated City (FIPS) CONCIT 5 68 A/N                            
FIPS Consolidated City Class Code CONCITCC 2 73 A/N                            
Consolidated City Size Code CONCITSC 2 75 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (Census) AIANHH 4 77 A/N X X X X X X X X X X X X X X
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N X X X X X X X X X X X X X X
FIPS American Indian Area/Alaska Native                                    
Area/Hawaiian Home Land Class                                    
Code AIANHHCC 2 86 A/N X X X X X X X X X X X X X X
American Indian Trust Land/Hawaiian                                    
Home Land Indicator AIHHTLI 1 88 A/N X X X X X X X X X X X X X X
American Indian Tribal Subdivision                                    
(Census) AITSCE 3 89 A/N   X   X   X   X            
American Indian Tribal Subdivision                                    
(FIPS) AITS 5 92 A/N   X   X   X   X            
FIPS American Indian Tribal Subdivision                                    
Class Code AITSCC 2 97 A/N   X   X   X   X            
Tribal Census Tract TTRACT 6 99 A/N         X X X X            
Tribal Block Group TBLKGRP 1 105 A/N             X X            
Alaska Native Regional Corporation                                    
(FIPS) ANRC 5 106 A/N                            
FIPS Alaska Native Regional Corporation                                    
Class Code ANRCCC 2 111 A/N                            
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area CBSA 5 113 A/N                         X X
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Size Code CBSASC 2 118 A/N                         X X
Metropolitan Division METDIV 5 120 A/N                         X X
Combined Statistical Area CSA 3 125 A/N                         X X
New England City and Town Area NECTA 5 128 A/N                           X
New England City and Town Area Size                                    
Code NECTASC 2 133 A/N                           X
New England City and Town Area                                    
Division NECTADIV 5 135 A/N                           X
Combined New England City and Town                                    
Area CNECTA 3 140 A/N                           X
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Principal City                                    
Indicator CBSAPCI 1 143 A/N                       X    
New England City and Town Area Principal                                    
City Indicator NECTAPCI 1 144 A/N                       X    
Urban Area UA 5 145 A/N                            
Urban Area Size Code UASC 2 150 A/N                            
Urban Area Type UATYPE 1 152 A/N                            
Urban/Rural UR 1 153 A/N                            
Congressional District (111th) CD 2 154 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 1) SLDU 3 156 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 1) SLDL 3 159 A/N                            
Voting District VTD 6 162 A/N                            
Voting District Indicator VTDI 1 168 A/N                            
Reserved RESERVE2 3 169 A/N                            
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                            
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                            
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                            
School District (Elementary) SDELM 5 184 A/N                            
School District (Secondary) SDSEC 5 189 A/N                            
School District (Unified) SDUNI 5 194 A/N                            
AREA CHARACTERISTICS                                    
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                    
Description (LSAD) Term-Part                                    
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X
Geographic Change User Note                                    
Indicator GCUNI 1 318 A/N X   X   X       X X X   X  
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N   X   X   X   X X X X X X X
SPECIAL AREA CODES                                    
Reserved RESERVE3 6 363 A/N                            
Urban Growth Area UGA 5 369 A/N                            
State (ANSI) STATENS 8 374 A/N                 X X X X X X
County (ANSI) COUNTYNS 8 382 A/N                         X X
County Subdivision (ANSI) COUSUBNS 8 390 A/N                           X
Place (ANSI) PLACENS 8 398 A/N                       X    
Consolidated City (ANSI) CONCITNS 8 406 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N X X X X X X X X X X X X X X
American Indian Tribal Subdivision                                    
(ANSI) AITSNS 8 422 A/N   X   X   X   X            
Alaska Native Regional Corporation                                    
(ANSI) ANRCNS 8 430 A/N                            
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                            
Congressional District (113th) CD113 2 446 A/N                            
Congressional District (114th) CD114 2 448 A/N                            
Congressional District (115th) CD115 2 450 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 2) SLDU2 3 452 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 3) SLDU3 3 455 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 4) SLDU4 3 458 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 2) SLDL2 3 461 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 3) SLDL3 3 464 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 4) SLDL4 3 467 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N X X X X X X X X X X X X X X
Combined Statistical Area Size Code CSASC 2 472 A/N                         X X
Combined NECTA Size Code CNECTASC 2 474 A/N                           X
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N                         X X
NECTA Metropolitan/Micropolitan                                    
Indicator NMEMI 1 477 A/N                           X
Public Use Microdata Area PUMA 5 478 A/N                            
Reserved RESERVED 18 483 A/N                            


tr>
Field Data dictionary reference Field size Starting position Data type Summary Levels
          272 273 274 275 276 277 278 290 291 292 293 294 310 311
RECORD CODES                                    
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X
State/U S Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                    
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                    
Region REGION 1 26 A/N X X X X X X X X           X
Division DIVISION 1 27 A/N X X X X X X X X           X
State (FIPS) STATE 2 28 A/N X X X X X X X X           X
County COUNTY 3 30 A/N X X X X X X X              
FIPS County Class Code COUNTYCC 2 33 A/N X X X X X X X              
County Size Code COUNTYSC 2 35 A/N X X X X X X X              
County Subdivision (FIPS) COUSUB 5 37 A/N   X   X X X X              
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N   X   X X X X              
County Subdivision Size Code COUSUBSC 2 44 A/N   X   X X X X              
Place (FIPS) PLACE 5 46 A/N   X     X   X              
FIPS Place Class Code PLACECC 2 51 A/N   X     X   X              
Place Size Code PLACESC 2 53 A/N   X     X   X              
Census Tract TRACT 6 55 A/N                            
Block Group BLKGRP 1 61 A/N                            
Block BLOCK 4 62 A/N                            
Internal Use Code IUC 2 66 A/N                            
Consolidated City (FIPS) CONCIT 5 68 A/N                            
FIPS Consolidated City Class Code CONCITCC 2 73 A/N                            
Consolidated City Size Code CONCITSC 2 75 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (Census) AIANHH 4 77 A/N X X X X X X X X X X X X    
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N X X X X X X X X X X X X    
FIPS American Indian Area/Alaska Native                                    
Area/Hawaiian Home Land Class                                    
Code AIANHHCC 2 86 A/N X X X X X X X X X X X X    
American Indian Trust Land/Hawaiian                                    
Home Land Indicator AIHHTLI 1 88 A/N X X X X X X X X X X X X    
American Indian Tribal Subdivision                                    
(Census) AITSCE 3 89 A/N               X            
American Indian Tribal Subdivision                                    
(FIPS) AITS 5 92 A/N               X            
FIPS American Indian Tribal Subdivision                                    
Class Code AITSCC 2 97 A/N               X            
Tribal Census Tract TTRACT 6 99 A/N                 X X X X    
Tribal Block Group TBLKGRP 1 105 A/N                     X X    
Alaska Native Regional Corporation                                    
(FIPS) ANRC 5 106 A/N                            
FIPS Alaska Native Regional Corporation                                    
Class Code ANRCCC 2 111 A/N                            
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area CBSA 5 113 A/N X X X X X X X           X X
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Size Code CBSASC 2 118 A/N X X X X X X X           X X
Metropolitan Division METDIV 5 120 A/N X X X X X X X              
Combined Statistical Area CSA 3 125 A/N X X X X X X X           X X
New England City and Town Area NECTA 5 128 A/N   X   X X X X              
New England City and Town Area Size                                    
Code NECTASC 2 133 A/N   X   X X X X              
New England City and Town Area                                    
Division NECTADIV 5 135 A/N   X   X X X X              
Combined New England City and Town                                    
Area CNECTA 3 140 A/N   X   X X X X              
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Principal City                                    
Indicator CBSAPCI 1 143 A/N   X     X   X              
New England City and Town Area Principal                                    
City Indicator NECTAPCI 1 144 A/N   X     X   X              
Urban Area UA 5 145 A/N                            
Urban Area Size Code UASC 2 150 A/N                            
Urban Area Type UATYPE 1 152 A/N                            
Urban/Rural UR 1 153 A/N                            
Congressional District (111th) CD 2 154 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 1) SLDU 3 156 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 1) SLDL 3 159 A/N                            
Voting District VTD 6 162 A/N                            
Voting District Indicator VTDI 1 168 A/N                            
Reserved RESERVE2 3 169 A/N                            
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                            
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                            
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                            
School District (Elementary) SDELM 5 184 A/N                            
School District (Secondary) SDSEC 5 189 A/N                            
School District (Unified) SDUNI 5 194 A/N                            
AREA CHARACTERISTICS                                    
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                    
Description (LSAD) Term-Part                                    
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X
Geographic Change User Note                                    
Indicator GCUNI 1 318 A/N X   X         X            
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N X X X X X X X X X X X X   X
SPECIAL AREA CODES                                    
Reserved RESERVE3 6 363 A/N                            
Urban Growth Area UGA 5 369 A/N                            
State (ANSI) STATENS 8 374 A/N X X X X X X X X           X
County (ANSI) COUNTYNS 8 382 A/N X X X X X X X              
County Subdivision (ANSI) COUSUBNS 8 390 A/N   X   X X X X              
Place (ANSI) PLACENS 8 398 A/N   X     X   X              
Consolidated City (ANSI) CONCITNS 8 406 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N X X X X X X X X X X X X    
American Indian Tribal Subdivision                                    
(ANSI) AITSNS 8 422 A/N               X            
Alaska Native Regional Corporation                                    
(ANSI) ANRCNS 8 430 A/N                            
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                            
Congressional District (113th) CD113 2 446 A/N                            
Congressional District (114th) CD114 2 448 A/N                            
Congressional District (115th) CD115 2 450 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 2) SLDU2 3 452 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 3) SLDU3 3 455 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 4) SLDU4 3 458 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 2) SLDL2 3 461 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 3) SLDL3 3 464 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 4) SLDL4 3 467 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N X X X X X X X X X X X X    
Combined Statistical Area Size Code CSASC 2 472 A/N X X X X X X X           X X
Combined NECTA Size Code CNECTASC 2 474 A/N   X   X X X X              
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N X X X X X X X           X X
NECTA Metropolitan/Micropolitan                                    
Indicator NMEMI 1 477 A/N   X   X X X X              
Public Use Microdata Area PUMA 5 478 A/N                            
Reserved RESERVED 18 483 A/N                            


Field Data dictionary reference Field size Starting position Data type Summary Levels
          312 313 314 315 316 330 331 332 333 335 336 337 338 350
RECORD CODES                                    
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X
State/U S Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                    
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                    
Region REGION 1 26 A/N X X   X X   X   X   X   X  
Division DIVISION 1 27 A/N X X   X X   X   X   X   X  
State (FIPS) STATE 2 28 A/N X X   X X   X   X   X   X  
County COUNTY 3 30 A/N   X     X                  
FIPS County Class Code COUNTYCC 2 33 A/N   X     X                  
County Size Code COUNTYSC 2 35 A/N   X     X                  
County Subdivision (FIPS) COUSUB 5 37 A/N                            
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N                            
County Subdivision Size Code COUSUBSC 2 44 A/N                            
Place (FIPS) PLACE 5 46 A/N X                          
FIPS Place Class Code PLACECC 2 51 A/N X                          
Place Size Code PLACESC 2 53 A/N X                          
Census Tract TRACT 6 55 A/N                            
Block Group BLKGRP 1 61 A/N                            
Block BLOCK 4 62 A/N                            
Internal Use Code IUC 2 66 A/N                            
Consolidated City (FIPS) CONCIT 5 68 A/N                            
FIPS Consolidated City Class Code CONCITCC 2 73 A/N                            
Consolidated City Size Code CONCITSC 2 75 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (Census) AIANHH 4 77 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N                            
FIPS American Indian Area/Alaska Native                                    
Area/Hawaiian Home Land Class                                    
Code AIANHHCC 2 86 A/N                            
American Indian Trust Land/Hawaiian                                    
Home Land Indicator AIHHTLI 1 88 A/N                            
American Indian Tribal Subdivision                                    
(Census) AITSCE 3 89 A/N                            
American Indian Tribal Subdivision                                    
(FIPS) AITS 5 92 A/N                            
FIPS American Indian Tribal Subdivision                                    
Class Code AITSCC 2 97 A/N                            
Tribal Census Tract TTRACT 6 99 A/N                            
Tribal Block Group TBLKGRP 1 105 A/N                            
Alaska Native Regional Corporation                                    
(FIPS) ANRC 5 106 A/N                            
FIPS Alaska Native Regional Corporation                                    
Class Code ANRCCC 2 111 A/N                            
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area CBSA 5 113 A/N X X X X X     X X          
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Size Code CBSASC 2 118 A/N X X X X X     X X          
Metropolitan Division METDIV 5 120 A/N   X X X X                  
Combined Statistical Area CSA 3 125 A/N X X X X X X X X X          
New England City and Town Area NECTA 5 128 A/N                       X X X
New England City and Town Area Size                                    
Code NECTASC 2 133 A/N                       X X X
New England City and Town Area                                    
Division NECTADIV 5 135 A/N                            
Combined New England City and Town                                    
Area CNECTA 3 140 A/N                   X X X X X
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Principal City                                    
Indicator CBSAPCI 1 143 A/N X                          
New England City and Town Area Principal                                    
City Indicator NECTAPCI 1 144 A/N                            
Urban Area UA 5 145 A/N                            
Urban Area Size Code UASC 2 150 A/N                            
Urban Area Type UATYPE 1 152 A/N                            
Urban/Rural UR 1 153 A/N                            
Congressional District (111th) CD 2 154 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 1) SLDU 3 156 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 1) SLDL 3 159 A/N                            
Voting District VTD 6 162 A/N                            
Voting District Indicator VTDI 1 168 A/N                            
Reserved RESERVE2 3 169 A/N                            
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                            
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                            
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                            
School District (Elementary) SDELM 5 184 A/N                            
School District (Secondary) SDSEC 5 189 A/N                            
School District (Unified) SDUNI 5 194 A/N                            
AREA CHARACTERISTICS                                    
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                    
Description (LSAD) Term-Part                                    
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X
Geographic Change User Note                                    
Indicator GCUNI 1 318 A/N                            
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N X     X     X   X   X   X  
SPECIAL AREA CODES                                    
Reserved RESERVE3 6 363 A/N                            
Urban Growth Area UGA 5 369 A/N                            
State (ANSI) STATENS 8 374 A/N X X   X X   X   X   X   X  
County (ANSI) COUNTYNS 8 382 A/N   X     X                  
County Subdivision (ANSI) COUSUBNS 8 390 A/N                            
Place (ANSI) PLACENS 8 398 A/N X                          
Consolidated City (ANSI) CONCITNS 8 406 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N                            
American Indian Tribal Subdivision                                    
(ANSI) AITSNS 8 422 A/N                            
Alaska Native Regional Corporation                                    
(ANSI) ANRCNS 8 430 A/N                            
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                            
Congressional District (113th) CD113 2 446 A/N                            
Congressional District (114th) CD114 2 448 A/N                            
Congressional District (115th) CD115 2 450 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 2) SLDU2 3 452 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 3) SLDU3 3 455 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 4) SLDU4 3 458 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 2) SLDL2 3 461 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 3) SLDL3 3 464 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 4) SLDL4 3 467 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N                            
Combined Statistical Area Size Code CSASC 2 472 A/N X X X X X X X X X          
Combined NECTA Size Code CNECTASC 2 474 A/N                   X X X X X
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N X X X X X     X X          
NECTA Metropolitan/Micropolitan                                    
Indicator NMEMI 1 477 A/N                       X X X
Public Use Microdata Area PUMA 5 478 A/N                            
Reserved RESERVED 18 483 A/N                            


Field Data dictionary reference Field size Starting position Data type Summary Levels
          351 352 353 354 355 356 357 358 500 610 620 860 870 880
RECORD CODES                                    
File Identification FILEID 6 1 A/N X X X X X X X X X X X X X X
State/U S Abbreviation (USPS) STUSAB 2 7 A X X X X X X X X X X X X X X
Summary Level SUMLEV 3 9 A/N X X X X X X X X X X X X X X
Geographic Component GEOCOMP 2 12 A/N X X X X X X X X X X X X X X
Characteristic Iteration CHARITER 3 14 A/N X X X X X X X X X X X X X X
Characteristic Iteration File Sequence                                    
Number CIFSN 2 17 A/N X X X X X X X X X X X X X X
Logical Record Number LOGRECNO 7 19 N X X X X X X X X X X X X X X
GEOGRAPHIC AREA CODES                                    
Region REGION 1 26 A/N X X X X   X X X X X X   X X
Division DIVISION 1 27 A/N X X X X   X X X X X X   X X
State (FIPS) STATE 2 28 A/N X X X X   X X X X X X   X X
County COUNTY 3 30 A/N     X X     X X           X
FIPS County Class Code COUNTYCC 2 33 A/N     X X     X X           X
County Size Code COUNTYSC 2 35 A/N     X X     X X           X
County Subdivision (FIPS) COUSUB 5 37 A/N       X       X            
FIPS County Subdivision Class Code COUSUBCC 2 42 A/N       X       X            
County Subdivision Size Code COUSUBSC 2 44 A/N       X       X            
Place (FIPS) PLACE 5 46 A/N   X                        
FIPS Place Class Code PLACECC 2 51 A/N   X                        
Place Size Code PLACESC 2 53 A/N   X                        
Census Tract TRACT 6 55 A/N                            
Block Group BLKGRP 1 61 A/N                            
Block BLOCK 4 62 A/N                            
Internal Use Code IUC 2 66 A/N                            
Consolidated City (FIPS) CONCIT 5 68 A/N                            
FIPS Consolidated City Class Code CONCITCC 2 73 A/N                            
Consolidated City Size Code CONCITSC 2 75 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (Census) AIANHH 4 77 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (FIPS) AIANHHFP 5 81 A/N                            
FIPS American Indian Area/Alaska Native                                    
Area/Hawaiian Home Land Class                                    
Code AIANHHCC 2 86 A/N                            
American Indian Trust Land/Hawaiian                                    
Home Land Indicator AIHHTLI 1 88 A/N                            
American Indian Tribal Subdivision                                    
(Census) AITSCE 3 89 A/N                            
American Indian Tribal Subdivision                                    
(FIPS) AITS 5 92 A/N                            
FIPS American Indian Tribal Subdivision                                    
Class Code AITSCC 2 97 A/N                            
Tribal Census Tract TTRACT 6 99 A/N                            
Tribal Block Group TBLKGRP 1 105 A/N                            
Alaska Native Regional Corporation                                    
(FIPS) ANRC 5 106 A/N                            
FIPS Alaska Native Regional Corporation                                    
Class Code ANRCCC 2 111 A/N                            
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area CBSA 5 113 A/N                           X
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Size Code CBSASC 2 118 A/N                           X
Metropolitan Division METDIV 5 120 A/N                           X
Combined Statistical Area CSA 3 125 A/N                           X
New England City and Town Area NECTA 5 128 A/N X X X X X X X X            
New England City and Town Area Size                                    
Code NECTASC 2 133 A/N X X X X X X X X            
New England City and Town Area                                    
Division NECTADIV 5 135 A/N       X X X X X            
Combined New England City and Town                                    
Area CNECTA 3 140 A/N X X X X X X X X            
Metropolitan Statistical Area/Micropolitan                                    
Statistical Area Principal City                                    
Indicator CBSAPCI 1 143 A/N                            
New England City and Town Area Principal                                    
City Indicator NECTAPCI 1 144 A/N   X                        
Urban Area UA 5 145 A/N                            
Urban Area Size Code UASC 2 150 A/N                            
Urban Area Type UATYPE 1 152 A/N                            
Urban/Rural UR 1 153 A/N                            
Congressional District (111th) CD 2 154 A/N                 X          
State Legislative District (Upper Chamber)                                    
(Year 1) SLDU 3 156 A/N                   X        
State Legislative District (Lower Chamber)                                    
(Year 1) SLDL 3 159 A/N                     X      
Voting District VTD 6 162 A/N                            
Voting District Indicator VTDI 1 168 A/N                            
Reserved RESERVE2 3 169 A/N                            
ZIP Code Tabulation Area (5-Digit) ZCTA5 5 172 A/N                       X X X
Subminor Civil Division (FIPS) SUBMCD 5 177 A/N                            
FIPS Subminor Civil Division Class Code SUBMCDCC 2 182 A/N                            
School District (Elementary) SDELM 5 184 A/N                            
School District (Secondary) SDSEC 5 189 A/N                            
School District (Unified) SDUNI 5 194 A/N                            
AREA CHARACTERISTICS                                    
Area (Land) AREALAND 14 199 N X X X X X X X X X X X X X X
Area (Water) AREAWATR 14 213 N X X X X X X X X X X X X X X
Area Name-Legal/Statistical Area                                    
Description (LSAD) Term-Part                                    
Indicator NAME 90 227 A/N X X X X X X X X X X X X X X
Functional Status Code FUNCSTAT 1 317 A/N X X X X X X X X X X X X X X
Geographic Change User Note                                    
Indicator GCUNI 1 318 A/N                            
Population Count (100%) POP100 9 319 N X X X X X X X X X X X X X X
Housing Unit Count (100%) HU100 9 328 N X X X X X X X X X X X X X X
Internal Point (Latitude) INTPTLAT 11 337 A/N X X X X X X X X X X X X X X
Internal Point (Longitude) INTPTLON 12 348 A/N X X X X X X X X X X X X X X
Legal/Statistical Area Description Code LSADC 2 360 A/N X X X X X X X X X X X X X X
Part Flag PARTFLAG 1 362 A/N X X X     X X           X X
SPECIAL AREA CODES                                    
Reserved RESERVE3 6 363 A/N                            
Urban Growth Area UGA 5 369 A/N                            
State (ANSI) STATENS 8 374 A/N X X X X   X X X X X X   X X
County (ANSI) COUNTYNS 8 382 A/N     X X     X X           X
County Subdivision (ANSI) COUSUBNS 8 390 A/N       X       X            
Place (ANSI) PLACENS 8 398 A/N   X                        
Consolidated City (ANSI) CONCITNS 8 406 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land (ANSI) AIANHHNS 8 414 A/N                            
American Indian Tribal Subdivision                                    
(ANSI) AITSNS 8 422 A/N                            
Alaska Native Regional Corporation                                    
(ANSI) ANRCNS 8 430 A/N                            
Subminor Civil Division (ANSI) SUBMCDNS 8 438 A/N                            
Congressional District (113th) CD113 2 446 A/N                            
Congressional District (114th) CD114 2 448 A/N                            
Congressional District (115th) CD115 2 450 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 2) SLDU2 3 452 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 3) SLDU3 3 455 A/N                            
State Legislative District (Upper Chamber)                                    
(Year 4) SLDU4 3 458 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 2) SLDL2 3 461 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 3) SLDL3 3 464 A/N                            
State Legislative District (Lower Chamber)                                    
(Year 4) SLDL4 3 467 A/N                            
American Indian Area/Alaska Native Area/                                    
Hawaiian Home Land Size Code AIANHHSC 2 470 A/N                            
Combined Statistical Area Size Code CSASC 2 472 A/N                           X
Combined NECTA Size Code CNECTASC 2 474 A/N X X X X X X X X            
Metropolitan/Micropolitan Indicator MEMI 1 476 A/N                           X
NECTA Metropolitan/Micropolitan                                    
Indicator NMEMI 1 477 A/N X X X X X X X X            
Public Use Microdata Area PUMA 5 478 A/N                            
Reserved RESERVED 18 483 A/N                            
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