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Documentation:
ACS 2008 (3-Year Estimates)
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Publisher:
U.S. Census Bureau
Survey:
ACS 2008 (3-Year Estimates)
Document:
ACS 2008-3yr Summary File: Technical Documentation
citation:
Social Explorer; U.S. Census Bureau; American Community Survey 2006-2008 Summary File: Technical Documentation.
Documentation
ACS 2008 (3-Year Estimates)
ACS 2008-3yr Summary File: Technical Documentation
Chapter 1. Abstract
1.1. Citation
1.2. Special Notes
1.3. Notes on Updates to the Technical Document Since 2008
1.4. Type of File
1.5. Subject Content
1.6. Geographic Content
1.7. Document Overview
1.8. User Updates
Chapter 2. How to Use the ACS Summary File
2.1. Introduction
2.2. Data Format
2.3. File Naming Conventions
2.4. Reading the Geographic Header Record
2.5. Geographic Hierarchy Primer
2.6. Worked Example
2.7. Data Structure and Segmentation
Chapter 3: Subject Locator
Chapter 4: Summary Level Sequence Chart
Chapter 5: List of Detailed Tables
Chapter 6: Accuracy of the Data
6.1. 2008 ACS Accuracy of the Data (US)
6.1.1. Introduction
6.1.2. Data Collection
6.1.3. Sampling Frame
6.2. 2008 ACS Accuracy of the Data (Puerto Rico)
6.2.1. Introduction
6.2.2. Data Collection
6.2.3. Sampling Frame
6.2.4. Sample Design
6.2.5. Weighting Methodology
6.2.6. Confidentiality of the Data
6.2.7. Errors in the Data
6.2.8. Measures of Sampling Error
6.2.9. Calculation of Standard Errors
6.2.10. Examples of Standard Error Calculations
6.2.11. Control of Nonsampling Error
Chapter 7: User Updates
Appendix A: ACS Geographic Terms and Concepts
Introduction-Geographic Presentation of Data
Hierarchical Presentation
Inventory Presentation
American Indian/Alaska Native Area/Hawaiian Home Land (AIANA/HHL) Entities
American Indian Area, Alaska Native Area, Hawaiian Home Land
Alaska Native Regional Corporation (ANRC)
Alaska Native Village Statistical Area (ANVSA)
American Indian Reservation
American Indian Off-Reservation Trust Land
American Indian Tribal Subdivision
Hawaiian Home Land (HHL)
Oklahoma Tribal Statistical Area (OTSA)
State Designated American Indian Statistical Area (SDAISA)
Tribal Designated Statistical Area (TDSA)
Area Measurement
Block Group (BG)
Boundary Changes
Census Block
Census Division
Census Region
Census Tract
Congressional District (CD)
County (or Statistically Equivalent Entity)
County Subdivision
Census County Division (CCD)
Census Subarea
Minor Civil Division (MCD)
Unorganized Territory
Geographic Code
Census Code
Federal Information Processing Standards (FIPS) Code
United States Postal Service (USPS) Code
Internal Point
Island Areas of the United States
Metropolitan Area (MA)
Central City
Consolidated and Primary Metropolitan Statistical Area (CMSA and PMSA)
Metropolitan Statistical Area (MSA)
Metropolitan Area Title and Code
New England County Metropolitan Area (NECMA)
Place
Census Designated Place (CDP)
Consolidated City
Incorporated Place
Population or Housing Unit Density
Public Use Microdata Area (PUMA)
Puerto Rico
Municipio
Barrio, Barrio-Pueblo, and Subbarrio
Zona Urbana and Comunidad
School District
State (or Statistically Equivalent Entity)
State Legislative District (SLD)
TIGER® Database
Traffic Analysis Zone (TAZ)
Tribal Block Group
Tribal Census Tract
United States
Urban and Rural
1
Footnote:
Urban Cluster (UC)
Urbanized Area (UA)
Extended Place
Urban Growth Area (UGA)
Voting District (VTD)
ZIP CODE® Tabulation Area (ZCTA)
Combined New England City and Town Area (CNECTA)
Combined Statistical Area (CSA)
Core Based Statistical Area (CBSA)
Metropolitan Division
Metropolitan Statistical Area/Micropolitan Statistical Area
New England City and Town Area (NECTA)
New England City and Town Area (NECTA) Division
State Designated Tribal Statistical Area (SDTSA)
Appendix B: Subject Definitions
Living Quarters
Housing Unit
Group Quarters
Housing Variables
General Information
Acreage (Cuerda)
Agricultural Sales
Bedrooms
Business on Property
Condominium Status and Fee
Contract Rent
Food Stamp Benefits
Gross Rent
Gross Rent as a Percentage of Household Income
Homeowner Vacancy Rate
House Heating Fuel
Household Size
Housing Units
Insurance for Fire, Hazard, and Flood
Kitchen Facilities
Meals Included in Rent
Mobile Home Costs
Monthly Housing Costs
Monthly Housing Costs as a Percentage of Household Income
Mortgage Payment
Mortgage Status
Occupants per Room
Occupied Housing Units
Owner-Occupied Units
Plumbing Facilities
Population in Occupied Housing Units
Poverty Status of Households
Real Estate Taxes
Rent Asked
Rental Vacancy Rate
Renter-Occupied Housing Units
Rooms
Second or Junior Mortgage Payments or Home Equity Loan
Selected Conditions
Selected Monthly Owner Costs
Selected Monthly Owner Costs as a Percentage of Household Income
Specified Owner-Occupied Units
Specified Renter-Occupied Units
Telephone Service Available
Tenure
Units in Structure
Utilities
Vacancy Status
Vacant-Current Residence Elsewhere
Vacant Housing Units
Value
Vehicles Available
Year Householder Moved into Unit
Year Structure Built
Population Variables
General Information
Ability to Speak English
Age
Ancestry
Children Ever Born
Citizenship Status (U.S. Citizenship Status)
Class of Worker
Disability Status
Educational Attainment
Employment Status
Families
Fertility
Foreign-Born Population
Foster Children
Grade in Which Enrolled
Grandparents as Caregivers
Group Quarters (GQ)
Health Insurance Coverage
Hispanic or Latino Origin
Household
Household Type and Relationship
Household Size
Householder
Immigrants
Income in the Past 12 Months
Industry, Occupation, and Class of Worker
Journey to Work
Labor Force Status
Language Spoken at Home and Ability to Speak English
Marital Status/Marital History
Means of Transportation to Work
Migration
Native Population
Nativity
Nativity of Parent
Occupation
Own Children
Period of Military Service
Persons in Family
Persons in Household
Place of Birth
Place of Work
Poverty Status in the Past 12 Months
Private Vehicle Occupancy
Race
Reference Week
Relatives and Nonrelatives
Residence 1 Year Ago
School Enrollment and Type of School
Sex
Social Security Income
Subfamily
Time Leaving Home to Go to Work
Travel Time to Work
Type of School
Usual Hours Worked in the Past 12 Months
Veteran Status
Weeks Worked in the Past 12 Months
Work Experience
Work Status in the Past 12 Months
Year of Entry
Quality Measures
General Information
Sample Size
Coverage Rates
Response Rates
Imputation Rates
Derived Measures
Aggregate
Average
Gini Index
Interpolation
Mean
Aggregate
Rounding for selected aggregates
Special rounding rules for aggregates
Aggregates Subject to Rounding:
Median
Percentage
Quartile
Quintile
Rate
Ratio
Appendix C: Data Collection and Processing Procedures
C.1. Self-enumeration through mail-out/mail-back methodology
C.2. Computer Assisted Telephone Interviewing (CATI)
C.3. Computer Assisted Personal Interviewing (CAPI)
Appendix D: Questionnaire
Appendix E: Data Products and User Assistance
Appendix F: Maps
Appendix G: Code Lists
G.1. 2008 American Community Survey/Puerto Rico Community Survey
Group Quarters
Correctional Facilities for Adults
Juvenile Facilities
Nursing Facilities/Skilled Nursing Facilities
Other Health Care Facilities
College/University Student Housing
Military Group Quarters
Other Noninstitutional Facilities
Appendix H: Examples of Standard Error Calculations
Appendix I: Sample SAS Programs
Appendix J: User Notes
Social Explorer; U.S. Census Bureau; American Community Survey 2006-2008 Summary File: Technical Documentation.