NOTE:The filling of codes and data attributes in the files is specific to summary level; not all fields are filled for every summary level. Where a code or attribute is specified, the actual value is assigned to the field except for the use of three special codes:

Assignment of codes of nine (9) indicates a balance record or that the entity or attribute does not exist for this record.

Assignment of pound signs (#) indicates that more than one value exists for this field and, thus, no specific value can be assigned.

Assignment of exclamation marks (!) indicates that the data are not yet available for this product.

Field name		Data dictionary refernce name	Field size	Starting position	Data Type
RecordCodes
File Identification1		FILEID	6	1	A/N
SF1ST	2010 Census Summary File 1 State
SF1US	2010 Census Summary File 1 National
State/U.S.-Abbreviation(USPS)		STUSAB	2	7	A
AK	Alaska
AL	Alabama
AR	Arkansas
AS	AmericanSamoa
AZ	Arizona
CA	California
CO	Colorado
CT	Connecticut
DC	DistrictofColumbia
DE	Delaware
FL	Florida
GA	Georgia
GU	Guam
HI	Hawaii
IA	Iowa
ID	Idaho
IL	Illinois
IN	Indiana
KS	Kansas
KY	Kentucky
LA	Louisiana
MA	Massachusetts
MDME	MarylandMaine
MIMN	MichiganMinnesota
MP	NorthernMarianaIslands
MO	Missouri
MS	Mississippi
MT	Montana
NC	NorthCarolina
ND	NorthDakota
NE	Nebraska
NH	NewHampshire
NJ	NewJersey
NM	NewMexico
NV	Nevada
NY	NewYork
OH	Ohio
OK	Oklahoma
OR	Oregon
PA	Pennsylvania
PR	PuertoRico
RI	RhodeIsland
SC	SouthCarolina
SD	SouthDakota
TN	Tennessee
TX	Texas
US	UnitedStates
UT	Utah
VA	Virginia
VI	VirginIslandsoftheUnitedStates
VT	Vermont
WA	Washington
WI	Wisconsin
WV	WestVirginia
WY	Wyoming
Summary Level2		SUMLEV	3	9	N
Geographic Component3		GEOCOMP	2	12	A/N
Characteristic Iteration4 000Not a characteristic iteration		CHARITER	3	14	A/N
Characteristic Iteration File Sequence Number5		CIFSN	2	17	A/N
Logical Record Number6		LOGRECNO	7	19	N

Field name		Data dictionary refernce name	Field size	Starting position	Data Type
Geographic Area Codes
Region7		REGION	1	26	A/N
1	Northeast
2	Midwest
3	South
4	West
9	Not in a region (Puerto Rico)
Division7		DIVISION	1	27	A/N
0	Not in a division (Puerto Rico)
1	New England
2	Middle Atlantic
3	East North Central
4	West North Central
5	South Atlantic
6	East South Central
7	West South Central
8	Mountain
9	Pacific
State(FIPS)7,8		STATE	2	28	A/N
01	Alabama
02	Alaska
04	Arizona
05	Arkansas
06	California
08	Colorado
09	Connecticut
10	Delaware
11	District of Columbia
12	Florida
13	Georgia
15	Hawaii
16	Idaho
17	Illinois
18	Indiana
19	Iowa
20	Kansas
21	Kentucky
22	Louisiana
23	Maine
24	Maryland
25	Massachusetts
26	Michigan
27	Minnesota
28	Mississippi
29	Missouri
30	Montana
31	Nebraska
32	Nevada
33	New Hampshire
34	New Jersey
35	New Mexico
36	New York
37	North Carolina
38	North Dakota
39	Ohio
40	Oklahoma
41	Oregon
42	Pennsylvania
44	RhodeIsland
45	South Carolina
46	South Dakota
47	Tennessee
48	Texas
49	Utah
50	Vermont
51	Virginia
53	Washington
54	West Virginia
55	Wisconsin
56	Wyoming
60	American Samoa
66	Guam
69	Northern Mariana Islands
72	Puerto Rico
County7,8		COUNTY	3	30	A/N
001-507	County or equivalent area code
510-840	Independent city code
FIPS County Class Code8		COUNTYCC	2	33	A/N
C7	An incorporated place that is independent of any county
H1	An active county or equivalent area
H4	An inactive county or equivalent area
H5	A statistical county equivalent area
H6	A county or equivalent feature that has consolidated its government with an incorporated place
County Size Code9		COUNTYSC	2	35	A/N
County Subdivision (FIPS)7,8		COUSUB	5	35	A/N
00000	Water area not assigned to a county subdivision
00001 - 89999	County subdivision in a state-level entity with governmental entities and in Alaska and Puerto Rico
90000 - 98999	County subdivision in a state with administrative or statistical entities (excluding Alaska and Puerto Rico)
FIPS County Subdivision Class Code8		COUSUBCC	2	42	A/N
C2	An active incorporated place that is legally coextensive with a county subdivision but treated as independent of any county subdivision (an independent place)
C5	An active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent (an independent place)
C7	An incorporated place that is independent of any county (an independent city)
T1	An active county subdivision that is not coextensive with an incorporated place
T2	An active county subdivision that is coextensive with a census designated place
T5	An active county subdivision that is coextensive with an incorporated place
T9	An inactive county subdivision
Z1	A nonfunctioning county subdivision
Z2	A county subdivision that is coextensive with or wholly contained within a legal American Indian, Alaska Native, or Native Hawaiian area and is independent of any other county subdivision
Z3	A county subdivision defined as a statistical unorganized territory
Z5	A statistical census county division (CCD) or census subarea (Alaska only)
Z7	An active incorporated place that is legally coextensive with or independent of any county subdivision in a state with only nonfunctioning county subdivisions (an independent place)
Z9	Water area not assigned to a county subdivision
County Subdivision Size Code9		COUSUBSC	2	44	A/N
Place(FIPS)7,8		PLACE	5	46	A/N
00001 - 89999	Incorporated place or census designated place (CDP)
FIPS Place Class Code8		PLACECC	2	51	A/N
C1	An active incorporated place that does not serve as a county subdivision equivalent
C2	An active incorporated place that is legally coextensive with a county subdivision but treated as independent of any county subdivision (an independent place)
C5	An active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent (an independent place)
C6	An active incorporated place that is partially independent of any county subdivision and partially dependent within a legal county subdivision (exists in Iowa and Ohio only)
C7	An incorporated place that is independent of any county (an independent city)
C8	The balance of a consolidated city excluding the separately incorporated place(s) within that consolidated government
C9	An inactive or nonfunctioning incorporated place
M2	A census designated place (CDP) defined within a military or Coast Guard installation
U1	A census designated place (CDP) with a name officially recognized by the U.S. Board on Geographic Names for a populated place
U2	A census designated place (CDP) with a name not officially recognized by the U.S. Board on Geographic Names for a populated place
Place Size Code9		PLACESC	2	53	A/N
Census Tract7		TRACT	6	55	A/N
000100 - 998999	Census tract
Block Group7		BLKGRP	1	61	A/N
0	Block group (water area only)
1 - 9	Block group (land or land and water area)
Block7		BLOCK	4	62	A/N
0001 - 0999	Block in a water area only block group
1000 - 9999	Block (can be all land, all water, or mixed)
Internal Use Code10		IUC	2	66	A/N
Consolidated City (FIPS)7,8		CONCIT	5	68	A/N
03436	Athens-Clarke County,Georgia
04200	Augusta-Richmond County, Georgia
11390	Butte-Silver Bow, Montana
36000	Indianapolis, Indiana
47500	Milford, Connecticut
48003	Louisville/Jefferson County, Kentucky
52004	Nashville-Davidson, Tennessee
FIPS Consolidated City Class Code8		CONCITCC	2	73	A/N
C3	Consolidated city
Consolidated City Size Code9		CONCITSC	2	75	A/N
American Indian Area/Alaska Native Area/Hawaiian HomeLand (FIPS)7,8,11		AIANHHFP	5	81	A/N
00001 - 89999	American Indian area, Alaska Native area, or Hawaiian home land
FIPS American Indian Area/Alaska Native Area/Hawaiian HomeLand Class Code8		AIANHHCC	2	86	A/N
D0	Statistical or legal area administered and/or claimed by two or more American Indian tribes
D1	Legal federally recognized American Indian area consisting of reservation and associatedoff-reservation trust land
D2	Legal federally recognized American Indian area consisting of reservation only
D3	Legal federally recognized American Indian area consisting of off-reservation trust land only
D4	Legal state-recognized American Indian reservation
D5	The off-reservation trust land portion of an American Indian area with both a reservation andoff-reservation trust land
D6	Statistical American Indian area defined for a federally recognized tribe that does not have areservation or off-reservation trust land, specifically a tribal designated statistical area (TDSA) orOklahoma tribal statistical area (OTSA)
D8	The reservation portion of an American Indian area with both a reservation and off-reservationtrust land
D9	Statistical American Indian area defined for a state-recognized tribe that does not have areservation or off-reservation trust land, specifically a state designated tribal statistical area
E1	Alaska Native village statistical area
F1	Hawaiian home land
American Indian Trust Land/Hawaiian Home Land Indicator		AIHHTLI	1	88	A/N
R	American Indian reservation or statistical entity only
T	American Indian off-reservation trust land only or Hawaiian home land
M	American Indian reservation and off-reservation trust land
9	Not in an American Indian area or Hawaiian home land
American Indian Tribal Subdivision (Census)7		AITSCE	3	89	A/N
001 - 998	American Indian tribal subdivision
American Indian Tribal Subdivision (FIPS)7,8,11		AITS	5	92	A/N
00001 - 89999	American Indian tribal subdivision
FIPS American Indian Tribal Subdivision Class Code8		AITSCC	2	97	A/N
D7	American Indian Tribal Subdivision	AITSCC	2	97	A/N
Alaska Native Regional Corporation (FIPS)6,7		ANRC	5	100	A/N
Tribal Census Tract		TTRACT	6	99	A/N
T00100 - T98999	Tribal census tract
Tribal Block Group		TBLKGRP	1	105	A/N
A - H, J, K	Tribal block group
Alaska Native Regional Corporation (FIPS)7,8		ANRC	5	100	A/N
00590	Ahtna
01570	Aleut
03950	Arctic Slope
06370	Bering Straits
09040	Bristol Bay
09800	Calista
14410	Chugach
17140	Cook Inlet
20010	Doyon
41640	Koniag
52120	NANA
67940	Sealaska
FIPS Alaska Native Regional Corporation Class Code8		ANRCCC	2	111	A/N
E7	Alaska Native Regional Corporation
Metropolitan Statistical Area/Micropolitan Statistical Area7,8		CBSA	5	113	A/N
10000 - 49999	Metropolitan or Micropolitan Statistical Area (cannot end in - œ4 - )
Metropolitan Statistical Area/Micropolitan Statistical Area Size Code9		CBSASC	2	118	A/N
Metropolitan Division7,8		METDIV	5	120	A/N
10004 - 49994	Metropolitan Division (always ends in - œ4 - )
Combined Statistical Area7,8		CSA	3	125	A/N
100 - 599	Combined Statistical Area
New England City and Town Area7,8		NECTA	5	128	A/N
70000 - 79999	New England City and Town Area (cannot end in - œ4 - )
New England City and Town Area Size Code9		NECTASC	2	133	A/N
New England City and Town Area Division7,8		NECTADIV	5	135	A/N
70004 - 79994	New England City and Town Area Division (always ends in - œ4 - )
Combined New England City and Town Area7,8		CNECTA	3	140	A/N
700 - 799	Combined New England City and Town Area
Metropolitan Statistical Area/Micropolitan Statistical Area Principal City Indicator7		CBSAPCI	1	143	A/N
Y	Place is a principal city of a metropolitan or micropolitan statistical area
N	Place is not a principal city of a metropolitan or micropolitan statistical area
9	Not in a place
New England City and Town Area Principal City Indicator7		NECTAPCI	1	144	A/N
Y	Place is a principal city of a New England city and town area
N	Place is not a principal city of a New England city and town area
9	Not in a place
Urban Area9,12		UA	5	145	A/N
00001 - 98999	Urbanized area or urban cluster
Urban Area Size Code9,12		UASC	2	150	A/N
Urban Area Type7,12		UATYPE	1	152	A/N
U	Urbanized area
C	Urban cluster
9	Not in an urban area
Urban/Rural7,12		UR	1	153	A/N
U	Area is classified as urban
R	Area is classified as rural
M	Mixed - part is classified as urban and part is classified as rural
Congressional District(111th)7,8,13		CD	2	154	A/N
01-53	The actual Congressional District number
00	Applies to states whose representative is elected "at large";i.e., the state has only one representative in the United States House of Representatives
98	Applies to areas that have an "at large" nonvoting delegate or resident commissioner in the United States House of Representatives
2 blanks	Applies to areas where no Congressional District was assigned
State Legislative District (Upper Chamber) (Year 1)7,14		SLDU	3	156	A/N
State Legislative District(Lower Chamber) (Year 1)7,14		SLDL	3	159	A/N
Voting District7,15		VTD	6	162	A/N
Voting District Indicator7		VTDI	1	168	A/N
A	Actual
P	Pseudo (adjusted)
Blank	Voting districts not defined (entire state or county)
Reserved		RESERVE2	3	169	A/N
ZIP Code Tabulation Area(5 digit)7,12		ZCTA5	5	172	A/N
Subminor Civil Division (FIPS)7,8		SUBMCD	5	177	A/N
00001 - 89999	Subbarrio (Puerto Rico only)
FIPS Subminor Civil Division Class Code8		SUBMCDCC	2	182	A/N
Z6	Subbarrio (Puerto Rico only)
School District (Elementary)7		SDELM	5	184	A/N
00001 - 99996	School district
School District (Secondary)7		SDSEC	5	189	A/N
00001 - 99996	School district
School District (Unified)7		SDUNI	5	194	A/N
00001 - 99996	School district
99997	School district not defined (land area)
99998	School district not defined (water area only)

Field name		Data dictionary refernce name	Field size	Starting position	Data Type
Area Characteristics
Area(Land)16		AREALAND	14	199	A/N
Area(Water)17		AREAWATR	14	213	A/N
Area Name-Legal/Statistical Area Description(LSAD)Term-Part Indicator18		NAME	90	227	A/N
Functional Status Code		FUNCSTAT	1	317	A/N
A	Active government providing primary general-purpose functions.
B	Active government that is partially consolidated with another government but with separate officials providing primary general-purpose functions.
C	Active government that is consolidated with another government that has the same officials providing primary general-purpose functions. Functional status C is assigned to the nonprimary entity.
E	Active government providing special-purpose functions.
F	Fictitious entity created to fill the Census Bureau's geographic hierarchy that is coextensive or nearly so with another governmental unit.
G	Active government that is fiscally or administratively subordinate to another unit of government that provides primary general-purpose functions; not classified as a government by the Census Bureau's Governments Division.
I	Inactive governmental unit that has the power to provide primary general-purpose functions.
N	Nonfunctioning legal entity (not a governmental unit)
S	Statistical entity.
Geographic Change User Note Indicator		GCUNI	1	318	A/N
Y	Geographic change user note exists for this entity
N	No geographic change user note exists for this entity
Population Count(100%)19		POP100	9	319	A/N
Housing Unit Count(100%)20		HU100	9	328	A/N
Internal Point(Latitude)21		INTPTLAT	11	337	A/N
Internal Point(Longitude)22		INTPTLON	12	348	A/N
Legal/Statistical Area Description Code20		LSADC	2	360	A/N
00	None - no legal/statistical area description exists; no text is appended to the name of the entity
03	City and borough - legal county equivalent in Alaska (Juneau, Sitka, Wrangell, and Yakutat); "City and Borough" is appended to the name of the entity
04	Borough - county equivalent in Alaska; "Borough" is appended to the name of the entity
05	Census area - statistical county equivalent in Alaska; "Census Area" is appended to the name of the entity
06	County - legal division of 48 states; "County" is appended to the name of the entity
07	District - 1) legal tribal subdivision in Arizona, Minnesota, Montana, Nebraska, North Dakota, and South Dakota; 2) state legislative district (upper chamber) in Massachusetts; and 3) state legislative district (lower chamber) in Massachusetts; "District" is appended to the name of the entity
12	Municipality - legal county equivalent in Alaska (Anchorage and Skagway); "Municipality" is appended to the name of the entity
13	Municipio - legal county equivalent in Puerto Rico; "Municipio" is appended to the name of the entity
15	Parish - legal county equivalent in Louisiana; "Parish" is appended to the name of the entity
20	Barrio - minor civil division (MCD) in Puerto Rico; "barrio" is appended to the name of the entity
21	Borough - 1) minor civil division (MCD) in New York; 2) MCD equivalent (independent place) in New Jersey and Pennsylvania; 3) incorporated place in Connecticut, New Jersey, and Pennsylvania; "borough" is appended to the name of the entity
22	Census county division (CCD) - statistical county subdivision in 20 states; "CCD" is appended to the name of the entity
23	Census subarea - statistical county subdivision in Alaska; "census subarea" is appended to the name of the entity
25	City - 1) legal county equivalent in Maryland, Missouri, and Virginia (independent city); 2) minor civil division (MCD) equivalent in 23 states and the District of Columbia (independent place); 3) incorporated place in 49 states and the District of Columbia; 4) consolidated city in Connecticut (Milford) and Indiana (Indianapolis); "city" is appended to the name of the entity
27	District (election, magisterial) - minor civil division (MCD) in Virginia and West Virginia; "district" is appended to the name of the entity
28	District (commissioner, election, magisterial, supervisors', or parish governing authority) - 1) minor civil division (MCD) in Louisiana, Maryland, Mississippi, Nebraska, Tennessee, Virginia, and West Virginia; 2) tribal subdivision in Arizona and South Dakota; "District" is added before the name of the entity
29	Election precinct - minor civil division (MCD) in Illinois and Nebraska; "precinct" is appended to the name of the entity
30	Election precinct - minor civil division (MCD) in Illinois and Nebraska; "Precinct" is added before the name of the entity
31	Gore - minor civil division (MCD) in Maine and Vermont; "gore" is appended to the name of the entity
32	Grant - minor civil division (MCD) in New Hampshire and Vermont; "grant" is appended to the name of the entity
36	Location - minor civil division (MCD) in New Hampshire; "location" is appended to the name of the entity
37	Municipality - 1) minor civil division (MCD) equivalent in Pennsylvania (independent place); 2) incorporated place in Alaska (Anchorage) and Pennsylvania; "municipality" is appended to the name of the entity
39	Plantation - minor civil division (MCD) in Maine; "plantation" is appended to the name of the entity
41	Barrio-pueblo - minor civil division (MCD) in Puerto Rico; "barrio-pueblo" is appended to the name of the entity
42	Purchase - minor civil division (MCD) in New Hampshire; "purchase" is appended to the name of the entity
43	Town - 1) minor civil division (MCD) in eight states; 2) MCD equivalent in New Jersey, Pennsylvania, and South Dakota (independent place); 3) incorporated place in 30 states; "town" is appended to the name of the entity
44	Township - minor civil division (MCD) in 16 states; "township" is appended to the name of the entity
45	Township - minor civil division (MCD) in Arkansas, Kansas, Minnesota, Nebraska, and North Carolina; "Township" is added before the name of the entity
46	Unorganized territory - minor civil division (MCD) in nine states; "UT" is appended to the name of the entity
47	Village - 1) minor civil division (MCD) equivalent in New Jersey, Ohio, South Dakota, and Wisconsin (independent place); 2) incorporated place in 19 states; "village" is appended to the name of the entity
49	Charter township - minor civil division (MCD) in Michigan; "charter township" is appended to the name of the entity
51	Subbarrio - subminor civil division (sub-MCD) in Puerto Rico; "subbarrio" is appended to the name of the entity
53	City and borough - incorporated place in Alaska (Juneau, Sitka, and Wrangell); "city and borough" is appended to the name of the entity
55	Comunidad - statistical place (census designated place) in Puerto Rico; "comunidad" is appended to the name of the entity
57	Census designated place - statistical place in all 50 states; "CDP" is appended to the name of the entity
62	Zona urbana - statistical place (census designated place) in Puerto Rico; "zona urbana" is appended to the name of the entity
68	Census region - statistical division of the United States; "Region" is appended to the name of the entity
69	Census division - statistical division of the United States; "Division" is appended to the name of the entity
70	Urban growth area (UGA) - legal area in Oregon and Washington; "UGA" is appended to the name of the entity
75	Urbanized area (UA) - statistical urban area in all 50 states, the District of Columbia, and Puerto Rico; "Urbanized Area" is appended to the name of the entity
76	Urban cluster (UC) - statistical urban area in all 50 states and Puerto Rico; "Urban Cluster" is appended to the name of the entity
77	Alaska Native Regional Corporation - legal Alaska Native area in Alaska; "Alaska Native Regional Corporation" is appended to the name of the entity
78	Hawaiian home land - legal Native Hawaiian area in Hawaii; "Hawaiian Home Land" is appended to the name of the entity
79	Alaska Native village statistical area - statistical Alaska Native area in Alaska; "ANVSA" is appended to the name of the entity
80	Tribal designated statistical area - statistical American Indian reservation equivalent in California, New York, and Washington for federally recognized tribes without a legal land base outside of Oklahoma; "TDSA" is appended to the name of the entity
81	Colony - American Indian reservation in Nevada; "Colony" is appended to the name of the entity
82	Community - 1) American Indian reservation in California, Minnesota, Nevada, Oregon, and Wisconsin; "Community" is appended to the name of the entity; 2) American Indian tribal subdivision in North Carolina and Oklahoma
83	Joint-use area - American Indian reservation equivalent in Kansas and New Mexico; "joint-use area" is appended to the name of the entity
84	Pueblo - American Indian reservation in New Mexico and Texas; "Pueblo" is appended to the name of the entity
85	Rancheria - American Indian reservation in California; "Rancheria" is appended to the name of the entity
86	Reservation - 1) American Indian reservation in 34 states; 2) minor civil division (MCD) equivalent in Maine and New York; "Reservation" is appended to the name of the entity
87	Reserve - American Indian reservation in Alaska; "Reserve" is appended to the name of the entity
88	Oklahoma tribal statistical area - statistical American Indian reservation equivalent in Oklahoma; "OTSA" is appended to the name of the entity
89	Trust land - legal American Indian reservation equivalent in nine states; "Trust Land" is appended to the name of the entity
90	Joint-use Oklahoma tribal statistical area - statistical American Indian reservation equivalent in Oklahoma; "joint-use OTSA" is appended to the name of the entity
91	Ranch - American Indian reservation in Nevada; "Ranch" is appended to the name of the entity
92	State designated tribal statistical area - statistical American Indian reservation equivalent in Alabama, Delaware, Louisiana, New Jersey, North Carolina, South Carolina, and Virginia; "SDTSA" is appended to the name of the entity
93	Indian village - American Indian reservation in California; "Indian Village" is appended to the name of the entity
94	Village - American Indian reservation in California and Oregon; "Village" is appended to the name of the entity
95	Indian community - American Indian reservation in Michigan and Minnesota; "Indian Community" is appended to the name of the entity
96	Indian reservation - American Indian reservation in Arizona, California, Montana, Nevada, Oregon, South Dakota, and Washington; "Indian Reservation" is appended to the name of the entity
97	Indian rancheria - American Indian reservation in California; "Indian Rancheria" is appended to the name of the entity
98	Indian colony - American Indian reservation in Nevada and Oregon; "Indian Colony" is appended to the name of the entity
99	Pueblo de - American Indian reservation in New Mexico; "Pueblo de" is added before the name of the entity
9C	Pueblo of - American Indian reservation in New Mexico; "Pueblo of" is added before the name of the entity
9D	Settlement - American Indian reservation in Iowa; "Settlement" is appended to the name of the entity
BG	Block group - statistical area in the United States and Puerto Rico; "Block Group" is added before the name (code) of the entity
BK	Block - statistical area in the United States and Puerto Rico; "Block" is added before the name (code) of the entity
C1	Congressional district (at large) - congressional district in a single-district state (Alaska, Delaware, Montana, North Dakota, South Dakota, Vermont, and Wyoming); "Congressional District (at Large)" appears as the name of the entity
C2	Congressional district - congressional district in a state with more than one district (43 states); "Congressional District" is added before the name (code) of the entity
C3	Resident commissioner district (at large) - congressional district equivalent in Puerto Rico; "Resident Commissioner District (at Large)" appears as the name of the entity
C4	Delegate district (at large) - congressional district equivalent in the District of Columbia; "Delegate District (at Large)" appears as the name of the entity
CG	Consolidated government - consolidated city in Georgia (Augusta-Richmond County); "consolidated government" is appended to the name of the entity
CN	Corporation - incorporated place in West Virginia (Ranson); "corporation" is appended to the name of the entity
CT	Census tract - statistical area in the United States and Puerto Rico; "Census Tract" is added before the name (modified code) of the entity
IB	Tribal block group - statistical area within specified legal American Indian areas; "Tribal Block Group" is added before the name (code) of the entity
IT	Tribal census tract - statistical area within specified legal American Indian areas; "Tribal Census Tract" is added before the name (modified code) of the entity
L1	Ward - state legislative district (upper chamber) equivalent in the District of Columbia; "Ward" is added before the name of the entity
L2	Senatorial district - state legislative district (upper chamber) in Nevada; "Senatorial District" is appended to the name of the entity
L3	Assembly district - state legislative district (lower chamber) in California, Nevada, New York, and Wisconsin; "Assembly District" is added before the name of the entity
L4	General assembly district - state legislative district (lower chamber) in New Jersey; "General Assembly District" is added before the name of the entity
L5	State legislative district - state legislative district (lower chamber) in Maryland; "State Legislative District" is added before the name of the entity
L6	State legislative subdistrict - state legislative district (lower chamber) in Maryland; "State Legislative Subdistrict" is added before the name of the entity
L8	State senate district - state legislative district (upper chamber) in Vermont; "State Senate District" is appended to the name of the entity
L9	State house district - state legislative district (lower chamber) in Vermont; "State House District" is appended to the name of the entity
LL	State house district - state legislative district (lower chamber) in 41 states and Puerto Rico; "State House District" is added before the name of the entity
LU	State senate district - state legislative district (upper chamber) in 47 states and Puerto Rico; "State Senate District" is added before the name of the entity
M0	Combined statistical area - statistical area in 45 states, the District of Columbia, and Puerto Rico; "CSA" is appended to the name of the entity
M1	Metropolitan statistical area - statistical area in all 50 states, the District of Columbia, and Puerto Rico; "Metro Area" is appended to the name of the entity
M2	Micropolitan statistical area - statistical area in 47 states and Puerto Rico; "Micro Area" is appended to the name of the entity
M3	Metropolitan division - statistical area in 17 states and the District of Columbia; "Metro Division" is appended to the name of the entity
M4	Combined New England city and town area - statistical area in Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont; "Combined NECTA" is appended to the name of the entity
M5	Metropolitan New England city and town area - statistical area in Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont; "Metropolitan NECTA" is appended to the name of the entity
M6	Micropolitan New England city and town area - statistical area in Connecticut, Maine, Massachusetts, New Hampshire, and Vermont; "Micropolitan NECTA" is appended to the name of the entity
M7	New England city and town area division - statistical area in Massachusetts and New Hampshire; "NECTA Division" is appended to the name of the entity
MG	Metropolitan government - 1) incorporated place in Tennessee (Lynchburg, Moore County); 2) consolidated city in Tennessee (Nashville-Davidson); "metropolitan government" is appended to the name of the entity
MT	Metro government - consolidated city in Kentucky (Louisville/Jefferson County); "metro government" is appended to the name of the entity
OT	Off-reservation trust land - trust land component of an American Indian reservation with associated trust land in 23 states; "Off-Reservation Trust Land" is appended to the name of the entity
P5	Public use microdata area (PUMA) - statistical area in all 50 states, the District of Columbia, and Puerto Rico; "PUMA" is added before the name (code) of the entity
T1	Area - American Indian tribal subdivision in Arizona and Utah; "Area" is appended to the name of the entity
T2	Chapter - American Indian tribal subdivision in Arizona, New Mexico, and Utah; "Chapter" is appended to the name of the entity
T3	Segment - American Indian tribal subdivision in Minnesota, North Dakota, and South Dakota; "Segment" is appended to the name of the entity
TA	Administrative area - American Indian tribal subdivision in Arizona; "Administrative Area" is appended to the name of the entity
TB	Addition - American Indian tribal subdivision in Wisconsin; "Addition" is appended to the name of the entity
TC	County district - statistical American Indian tribal subdivision in Oklahoma; "County District" is added before the name of the entity
UC	Urban county - incorporated place in Kentucky (Lexington-Fayette); "urban county" is appended to the name of the entity
UG	Unified government - 1) incorporated place in Georgia (Cusseta-Chattahoochee County, Georgetown-Quitman County, and Webster County); 2) consolidated city in Georgia (Athens- Clarke County); "unified government" is appended to the name of the entity
V1	Voting district (VTD) - legal voting district in 32 states and Puerto Rico; "VTD" is added before the name of the entity
V2	Voting district (VTD) - legal voting district in 32 states; "VTD" is appended to the name of the entity
Z5	ZIP code tabulation area (5-digit) - statistical area in all 50 states, the District of Columbia, and Puerto Rico; "ZCTA5" is added before the name of the entity
Part Flag		PARTFLAG	1	362	A/N
W	Not a part
P	Part

td width="163">State (ANSI)⁸td width="163">State Legislative District (Lower Chamber) (Year 3)^7,24

Field name		Data dictionary refernce name	Field size	Starting position	Data Type
Special Area Codes
Reserved		RESERVE3	6	363	A/N
Urban Growth Area7		UGA	5	369	A/N
	STATENS	8	374	A/N
County (ANSI)8		COUNTYNS	8	382	A/N
County Subdivision (ANSI)8		COUSUBNS	8	390	A/N
Place (ANSI)8		PLACENS	8	398	A/N
Consolidated City (ANSI)8		CONCITNS	8	406	A/N
American Indian Area/Alaska Native Area/ Hawaiian Home Land (ANSI)8		AIANHHNS	8	414	A/N
American Indian Tribal Subdivision (ANSI)8		AITSNS	8	422	A/N
Alaska Native Regional Corporation (ANSI)8		ANRCNS	8	430	A/N
Subminor Civil Division (ANSI)8		SUBMCDNS	8	438	A/N
Congressional District (113th)7,8,23		CD113	2	446	A/N
01 - 53	The actual congressional district number
00	Applies to states whose representative is elected "at large"; the state has only one representative in the U.S. House of Representativ
98	Applies to areas that have an "at large" nonvoting delegate or resident commissioner in the U.S. House of Representatives
Congressional District (114th)7,8,23		CD114	2	448	A/N
01 - 53	The actual congressional district number
00	Applies to states whose representative is elected "at large"; the state has only one representative in the U.S. House of Representatives
98	Applies to areas that have an "at large" nonvoting delegate or resident commissioner in the U.S. House of Representatives
Congressional District (115th)7,8,23		CD115	2	450	A/N
01 - 53	The actual congressional district number
00	Applies to states whose representative is elected "at large"; the state has only onerepresentative in the U.S. House of Representatives
98	Applies to areas that have an "at large" nonvoting delegate or resident commissioner in theU.S. House of Representatives
State Legislative District (Upper Chamber) (Year 2)7,24		SLDU2	3	452	A/N
State Legislative District (Upper Chamber)(Year 3)7,24		SLDU3	3	455	A/N
State Legislative District (Upper Chamber)(Year 4)7,24		SLDU4	3	458	A/N
State Legislative District (Lower Chamber) (Year 2)7,24		SLDL2	3	461	A/N
	SLDL3	3	464	A/N
State Legislative District (Lower Chamber) (Year 4)7,24		SLDL4	3	467	A/N
American Indian Area/Alaska Native Area/ Hawaiian Home Land Size Code9		AIANHHSC	2	470	A/N
Combined Statistical Area Size Code9		CSASC	2	472	A/N
Combined NECTA Size Code9		CNECTASC	2	474	A/N
Metropolitan/Micropolitan Indicator		MEMI	1	476	A/N
1	Metropolitan Statistical Area
2	Micropolitan Statistical Area
9	Not in a Metropolitan or Micropolitan Statistical Area
NECTA Metropolitan/Micropolitan Indicator		NMEMI	1	477	A/N
1	Metropolitan New England City and Town Area
2	Micropolitan New England City and Town Area
9	Not in a New England City and Town Area
Public Use Microdata Area12		PUMA	5	478	A/N
00001 - 99998	Census PUMA Code
Reserved		RESERVED	18	483	A/N

¹A unique, six-character identifier for each file series. See "How to Use This Product" for further information.
²Identifies the geographic level for which the data matrices on the summary file have been summarized. The summary level sequence chart describes the hierarchical arrangement of the specified geographic areas with other geographic areas, if any. The summary level must be used in combination with the geographic area codes to identify a specific geographic area (for example, summary level 050 and a specific state and county code must be used together to locate the data for a particular county). See "How to Use This Product" for further information.
³Indicates an iteration (repetition), for the specified summary level, of the data matrices on the summary file for the geographic components listed in the Geographic Component field. The Redistricting Data Summary File products contain no components. See "How to Use This Product" for further information.

Geographic Component Description
00 - Not a geographic component
01 - Urban
04 - Urban-in urbanized area
05 - Urban-in urbanized area of 5,000,000 or more population
06 - Urban-in urbanized area of 2,500,000 to 4,999,999 population
07 - Urban-in urbanized area of 1,000,000 to 2,499,999 population
08 - Urban-in urbanized area of 500,000 to 999,999 population
09 - Urban-in urbanized area of 250,000 to 499,999 population
10 - Urban-in urbanized area of 100,000 to 249,999 population
11 - Urban-in urbanized area of 50,000 to 99,999 population
28 - Urban-in urban cluster
29 - Urban-in urban cluster of 25,000 to 49,999 population
30 - Urban-in urban cluster of 10,000 to 24,999 population
31 - Urban-in urban cluster of 5,000 to 9,999 population
32 - Urban-in urban cluster of 2,500 to 4,999 population
43 - Rural
44 - Rural-place
45 - Rural-place of 2,500 or more population
46 - Rural-place of 1,000 to 2,499 population
47 - Rural-place of less than 1,000 population
48 - Rural-not in place
49 - Rural-farm
50 - Urban portion of extended place
51 - Rural portion of extended place
89 - American Indian Reservation and Trust Land-Federal
90 - American Indian Reservation and Trust Land-State
91 - Oklahoma Tribal Statistical Area
92 - Tribal Designated Statistical Area
93 - Alaska Native Village Statistical Area
94 - State Designated Tribal Statistical Area
95 - Hawaiian Home Land
A0 - In metropolitan or micropolitanstatisticalarea
A1 - In metropolitan or micropolitanstatisticalarea-in principal city
A2 - In metropolitan or micropolitanstatisticalarea-not in principal city
A3 - In metropolitan or micropolitanstatisticalarea-urban
A4 - In metropolitan or micropolitanstatisticalarea-urban-in urbanized area
A5 - In metropolitan or micropolitanstatisticalarea-urban-in urban cluster
A6 - In metropolitan or micropolitanstatisticalarea-rural
A7 - In metropolitan or micropolitanstatisticalarea of 5,000,000 or more population
A8 - In metropolitan or micropolitanstatisticalarea of 2,500,000 to 4,999,999 population
A9 - In metropolitan or micropolitanstatisticalarea of 1,000,000 to 2,499,999 population
AA - In metropolitan or micropolitanstatisticalarea of 500,000 to 999,999 population
AB - In metropolitan or micropolitanstatisticalarea of 250,000 to 499,999 population
AC - In metropolitan or micropolitanstatisticalarea of 100,000 to 249,999 population
AD - In metropolitan or micropolitanstatisticalarea of 50,000 to 99,999 population
AE - In metropolitan or micropolitanstatisticalarea of 25,000 to 49,999 population
AF - In metropolitan or micropolitanstatisticalarea of less than 25,000 population
C0 - In metropolitan statistical area
C1 - In metropolitan statistical area--in principal city
C2 - In metropolitan statistical area--not in principal city
C3 - In metropolitan statistical area-urban
C4 - In metropolitan statistical area--urban-in urbanized area
C5 - In metropolitan statistical area--urban-in urban cluster
C6 - In metropolitan statistical area-rural
C7 - In metropolitan statistical area of 5,000,000 or more population
C8 - In metropolitan statistical area of 2,500,000 to 4,999,999 population
C9 - In metropolitan statistical area of 1,000,000 to 2,499,999 population
CA - In metropolitan statistical area of 500,000 to 999,999 population
CB - In metropolitan statistical area of 250,000 to 499,999 population
CC - In metropolitan statistical area of 100,000 to 249,999 population
CD - In metropolitan statistical area of less than 100,000 population
CE - In metropolitan statistical area of 5,000,000 or more population-in principal city
CF - In metropolitan statistical area of 5,000,000 or more population-not in principal city
CG - In metropolitan statistical area of 2,500,000 to 4,999,999 population-in principal city
CH - In metropolitan statistical area of 2,500,000 to 4,999,999 population-not in principal city
CJ - In metropolitan statistical area of 1,000,000 to 2,499,999 population-in principal city
CK - In metropolitan statistical area of 1,000,000 to 2,499,999 population-not in principal city
CL - In metropolitan statistical area of 500,000 to 999,999 population-in principal city
CM - In metropolitan statistical area of 500,000 to 999,999 population-not in principal city
CN - In metropolitan statistical area of 250,000 to 499,999 population-in principal city
CP - In metropolitan statistical area of 250,000 to 499,999 population-not in principal city
CQ - In metropolitan statistical area of 100,000 to 249,999 population-in principal city
CR - In metropolitan statistical area of 100,000 to 249,999 population-not in principal city
CS - In metropolitan statistical area of less than 100,000 population-in principal city
CT - In metropolitan statistical area of less than 100,000 population-not in principal city
E0 - In micropolitan statistical area
E1 - In micropolitan statistical area-in principal city
E2 - In micropolitan statistical area-not in principal city
E3 - In micropolitan statistical area-urban
E4 - In micropolitan statistical area-urban-in urbanized area
E5 - In micropolitan statistical area-urban-in urban cluster
E6 - In micropolitan statistical area-rural
E7 - In micropolitan statistical area of 100,000 or more population
E8 - In micropolitan statistical area of 50,000 to 99,999 population
E9 - In micropolitan statistical area of 25,000 to 49,999 population
EA - In micropolitan statistical area of less than 25,000 population
EB - In micropolitan statistical area of 100,000 or more population-in principal city
EC - In micropolitan statistical area of 100,000 or more population-not in principal city
ED - In micropolitan statistical area of 50,000 to 99,999 population-in principal city
EE - In micropolitan statistical area of 50,000 to 99,999 population-not in principal city
EF - In micropolitan statistical area of 25,000 to 49,999 population-in principal city
EG - In micropolitan statistical area of 25,000 to 49,999 population-not in principal city
EH - In micropolitan statistical area of less than 25,000 population-in principal city
EJ - In micropolitan statistical area of less than 25,000 population-not in principal city
G0 - Not in metropolitan or micropolitan statistical area
G1 - Not in metropolitan or micropolitan statistical area-urban
G2 - Not in metropolitan or micropolitan statistical area-urban-in urbanized area
G3 - Not in metropolitan or micropolitan statistical area-urban-in urban cluster
G4 - Not in metropolitan or micropolitan statistical area-rural
H0 - Not in metropolitan statistical area
H1 - Not in metropolitan statistical area-urban
H2 - Not in metropolitan statistical area--urban-in urbanized area
H3 - Not in metropolitan statistical area--urban-in urban cluster
H4 - Not in metropolitan statistical area-rural
J0 - In combined statistical area
L0 - Not in combined statistical area
M0 - In New England city and town area
M1 - In New England city and town area- in principal city
M2 - In New England city and town area- not in principal city
M3 - In New England city and town area- urban
M4 - In New England city and town area--urban-in urbanized area
M5 - In New England city and town area--urban-in urban cluster
M6 - In New England city and town area- rural
P0 - In combined New England city and town area


⁴Indicates an iteration (repetition), for the specified summary level, of the data matrices on the summary file for a population or housing characteristic. These iteration fields apply to Summary File 2 (SF 2) and the American Indian and Alaska Native Summary File only.
⁵The sequence number of the table file within the set of physical files for the state (i.e., the geographic header record file and one or more table files). See "How to Use This Product" for more information.
⁶The logical record is the complete record for a geographic entity defined by the summary level, but exclusive of the characteristic iteration. A logical record may have one or more parts (or segments). Each logical record has an assigned sequential integer number within the file. See "How to Use This Product" for further information.
⁷See Appendix A, "Geographic Terms and Concepts," for definition of this field.
⁸The Federal Information Processing Standards (FIPS) codes were withdrawn as a standard in 2005. The Census Bureau, however, has renamed these codes as Federal Information Processing Series codes and retained the acronym. The two-digit state and congressional district and three-digit county FIPS codes (former FIPS 5, 9, and 6, respectively) are unchanged, but with oversight transferred to the American National Standards Institute (ANSI). The five-digit FIPS 55 codes are no longer a federal code standard; however they are retained in Census Bureau files as administrative codes and used as primary key codes for many geographic entity types. The U.S. Geological Survey has received ANSI oversight for a code standard that uses the Geographic Names Information System identifier (GNIS ID).

The new ANSI standard using the GNIS ID as the official codes for Named Physical and Cultural Geographic Features of the United States and Puerto Rico also is included in Census Bureau files for state, county, county subdivision, place, consolidated city, American Indian area, Alaska Native area, Hawaiian home land, American Indian tribal subdivision, and subminor civil division or equivalent features. The Census Bureau references these fields in the geoheader as ANSI codes and using the term National Standard code. The codes represent the official numeric GNIS ID as an eight-digit character field with leading zeroes. The Census Bureau treats the state and county or equivalent area ANSI codes as supplemental standard codes.

The following lists the published code standards used for the 2010 Census (with its associated Census 2000 standard):

-INCITS.38-200x (R2004), Codes for the Identification of the States, the District of Columbia, Puerto Rico, and the Insular Areas of the United States (Formerly FIPS 5-2)

-INCITS.31-200x (R2007), Codes for the Identification of Counties and Equivalent Areas of the United States, Puerto Rico, and the Insular Areas of the United States (Formerly FIPS 6-4)

-INCITS.454-200x, Codes for the Identification of Metropolitan and Micropolitan Statistical Areas and Related Areas of the United States and Puerto Rico (Formerly FIPS 8-6)

-INCITS 455-200x, Codes for the Identification of Congressional Districts and Equivalent Areas of the United States, Puerto Rico, and the Insular Areas (Formerly FIPS 9-1)

-INCITS 446-2008, (GNIS) Identifying Attributes for Named Physical and Cultural Geographic Features (Except Roads and Highways) of the United States, Its Territories, Outlying Areas, and Freely Associated Areas, and the Waters of the Same to the Limit of the Twelve-Mile Statutory Zone (Formerly FIPS 55-4)

Note: INCITS refers to InterNational Committee for Information Technology Standards.

⁹ Identifies areas within predetermined population ranges. The actual codes and ranges are common to
all entities with a size code field. The complete list of size codes follows:

00Not in universe
010
021-24
0325-99
04100-199
05200-249
06250-299
07300-499
08500-999
091,000-1,499
101,500-1,999
112,000-2,499
122,500-4,999
135,000-9,999
1410,000-19,999
1520,000-24,999
1625,000-49,999
1750,000-99,999
18100,000-249,999
19250,000-499,999
20500,000-999,999
211,000,000-2,499,999
222,500,000-4,999,999
235,000,000 or more

The size code fields are not filled for the Redistricting Data Summary File products.

¹⁰Codes in unspecified arrangement for U.S. Census Bureau use.
¹¹Federal Information Processing Series (FIPS) 55 codes are assigned by state. Because American Indian areas and tribal subdivisions can exist in more than one state, multiple FIPS 55 codes can exist for the entity.
¹²Urban Areas, Urban/Rural classification, ZIP Code Tabulation Areas, and Public Use Microdata Areas are not available in the Redistricting Data products.
¹³Blank values in the Congressional District (111th) field indicate areas where no congressional district was assigned by state redistricting officials.
¹⁴State legislative district codes have three characters and can include a hyphen (-). The code ZZZ indicates state legislative districts not defined. In the District of Columbia and Nebraska, both of which have a single legislative body, the state legislative districts are reported as upper chamber districts, and the lower chamber districts are coded as 999.
¹⁵Voting district codes can have one to six characters including special characters of a hyphen (-), dot (.), and forward slash (/). If the code contains less than six characters, the field is right-justified with leading blanks. The code ZZZZZZ indicates voting district not defined in a county or equivalent area containing one or more defined voting districts. A code of six blanks is used in Kentucky, Rhode Island, Oregon (except Multnomah County), and 14 of the 50 counties in Montana, where participants did not define voting districts for entire states or counties.
¹⁶Land area measurement in square meters. The accuracy of the area measurement is limited by the inaccuracy inherent in the mapping of the various boundary features in the Census Bureau's geographic database. Land area includes areas classified as intermittent water, swamps, and glaciers, which appear on census maps and in the Census Bureau's geographic database as hydrographic features. Square miles can be derived by dividing square meters by 2,589,988. See Appendix A, "Geographic Terms and Concepts," for definition of this field.
¹⁷Water area measurement in square meters. The accuracy of the area measurement is limited by the inaccuracy inherent in the mapping of the various boundary features in the Census Bureau's geographic database. Water area excludes areas classified as intermittent water, swamps, and glaciers, which are treated as land even though they appear on census maps and in the Census Bureau's geographic database as hydrographic features. Square miles can be derived by dividing square meters by 2,589,988. See Appendix A, "Geographic Terms and Concepts," for definition of this field.
¹⁸Name of the lowest-level entity represented by the summary level. In addition to the name of the entity, the name field contains the legal/statistical area description (LSAD), when appropriate, and sometimes contains the state abbreviation. For legal entities, the name is the one reported to the U.S. Census Bureau in the Boundary and Annexation Survey or by other appropriate sources, such as state education officials for school districts. For statistical entities, the name is determined by the Office of Management and Budget for metropolitan and micropolitan areas. The remaining statistical area names usually are supplied by tribal, state, or local sources according to published criteria. For redistricting data entities, names are reported by the state redistricting data liaison. For other areas, the name is determined by the local officials, usually in cooperation with the Bureau. When the summary level data represent only part of the area specified in the name, the name usually will have "(part)" appended to the name/code terminology to designate that this entry for the entity represents only a part of the total entity.
¹⁹The total number of persons enumerated in the specified geographic entity as determined in the 100 percent processing.
²⁰The total number of housing units enumerated in the specified geographic entity as determined in the 100 percent processing.
²¹Latitude in degrees, to seven decimal places, of a point within the geographic area represented by the summary level. The character immediately preceding the first digit of the latitude of an internal point identifies the direction (hemisphere): a plus sign (+) indicates the Northern Hemisphere; a minus sign (-) indicates the Southern Hemisphere. See Appendix A, "Geographic Terms and Concepts," for definition of this field.
²²Longitude in degrees, to seven decimal places, of a point within the geographic area represented by the summary level. The character immediately preceding the first digit of the longitude of an internal point identifies the direction (hemisphere): a plus sign (+) indicates the Eastern hemisphere; a minus sign (-) indicates the Western Hemisphere. A point on the 180th meridian is assigned to the Western Hemisphere (-180.0000000). See Appendix A, "Geographic Terms and Concepts," for definition of this field.
²³Congressional District (113th), Congressional District (114th), and Congressional District (115th) are reserved for areas established after reapportionment and redistricting.
²⁴State Legislative District-Upper and Lower Chamber-for Year 2, 3, and 4 are reserved for areas established after redistricting.

Please refer to: Table (Matrix) Section