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American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2009

Resource Type
Dataset : survey data
  • United States Department of Commerce. Bureau of the Census
Other Title
  • Archival Version (Subtitle)
Collective Title
  • American Community Survey (ACS) Series
Publication Date
Free Keywords
census data; citizenship; demographic characteristics; economic conditions; employment; ethnicity; families; genealogy; hearing impairment; household composition; households; housing; housing conditions; immigration; income; indigenous populations; labor force; marriage; military service; mortgage payments; physical disabilities; population; population characteristics; population migration; public utilities; race; taxes; vision impairment
  • Abstract

    The American Community Survey (ACS) is a part of the Decennial Census Program, and is designed to produce critical information about the characteristics of local communities. The ACS publishes social, housing, and economic characteristics for demographic groups covering a broad spectrum of geographic areas in the United States and Puerto Rico. Every year the ACS supports the release of single-year estimates for geographic areas with populations of 65,000 or more. Demographic variables include sex, age, relationship, households by type, race, and Hispanic origin. Social characteristics variables include school enrollment, educational attainment, marital status, fertility, grandparents caring for children, veteran status, disability status, residence one year ago, place of birth, United States citizenship status, year of entry, world region of birth of foreign born, language spoken at home, and ancestry. Variables focusing on economic characteristics include employment status, commuting to work, occupation, industry, class of worker, income and benefits, and poverty status. Variables focusing on housing characteristics include occupancy, units in structure, year structure was built, number of rooms, number of bedrooms, housing tenure, year householder moved into unit, vehicles available, house heating fuel, utility costs, occupants per room, housing value, and mortgage status. The American Community Survey is conducted under the authority of Title 13, United States Code, Sections 141 and 193, and response is mandatory.
  • Methods

    The data in the household and population files contain weights. The initial weights reflect the probability of selection and are adjusted for interviewed households to account for noninterviews. Additional weights reflect independent housing unit and population estimates. When programming the replicate weight standard errors, note that the full PUMS weight is never zero or negative. However, the eighty replicate weights can be zero or negative.
  • Methods

    ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection: Performed consistency checks.; Created variable labels and/or value labels.; Standardized missing values.; Created online analysis version with question text.; Checked for undocumented or out-of-range codes..
  • Table of Contents


    • DS0: Study-Level Files
    • DS1: Alabama Housing
    • DS2: Alabama Population
    • DS3: Alaska Housing
    • DS4: Alaska Population
    • DS5: Arizona Housing
    • DS6: Arizona Population
    • DS7: Arkansas Housing
    • DS8: Arkansas Population
    • DS9: California Housing
    • DS10: California Population
    • DS11: Colorado Housing
    • DS12: Colorado Population
    • DS13: Connecticut Housing
    • DS14: Connecticut Population
    • DS15: Delaware Housing
    • DS16: Delaware Population
    • DS17: District of Columbia Housing
    • DS18: District of Columbia Population
    • DS19: Florida Housing
    • DS20: Florida Population
    • DS21: Georgia Housing
    • DS22: Georgia Population
    • DS23: Hawaii Housing
    • DS24: Hawaii Population
    • DS25: Idaho Housing
    • DS26: Idaho Population
    • DS27: Illinois Housing
    • DS28: Illinois Population
    • DS29: Indiana Housing
    • DS30: Indiana Population
    • DS31: Iowa Housing
    • DS32: Iowa Population
    • DS33: Kansas Housing
    • DS34: Kansas Population
    • DS35: Kentucky Housing
    • DS36: Kentucky Population
    • DS37: Louisiana Housing
    • DS38: Louisiana Population
    • DS39: Maine Housing
    • DS40: Maine Population
    • DS41: Maryland Housing
    • DS42: Maryland Population
    • DS43: Massachusetts Housing
    • DS44: Massachusetts Population
    • DS45: Michigan Housing
    • DS46: Michigan Population
    • DS47: Minnesota Housing
    • DS48: Minnesota Population
    • DS49: Mississippi Housing
    • DS50: Mississippi Population
    • DS51: Missouri Housing
    • DS52: Missouri Population
    • DS53: Montana Housing
    • DS54: Montana Population
    • DS55: Nebraska Housing
    • DS56: Nebraska Population
    • DS57: Nevada Housing
    • DS58: Nevada Population
    • DS59: New Hampshire Housing
    • DS60: New Hampshire Population
    • DS61: New Jersey Housing
    • DS62: New Jersey Population
    • DS63: New Mexico Housing
    • DS64: New Mexico Population
    • DS65: New York Housing
    • DS66: New York Population
    • DS67: North Carolina Housing
    • DS68: North Carolina Population
    • DS69: North Dakota Housing
    • DS70: North Dakota Population
    • DS71: Ohio Housing
    • DS72: Ohio Population
    • DS73: Oklahoma Housing
    • DS74: Oklahoma Population
    • DS75: Oregon Housing
    • DS76: Oregon Population
    • DS77: Pennsylvania Housing
    • DS78: Pennsylvania Population
    • DS79: Puerto Rico Housing
    • DS80: Puerto Rico Population
    • DS81: Rhode Island Housing
    • DS82: Rhode Island Population
    • DS83: South Carolina Housing
    • DS84: South Carolina Population
    • DS85: South Dakota Housing
    • DS86: South Dakota Population
    • DS87: Tennessee Housing
    • DS88: Tennessee Population
    • DS89: Texas Housing
    • DS90: Texas Population
    • DS91: Utah Housing
    • DS92: Utah Population
    • DS93: Vermont Housing
    • DS94: Vermont Population
    • DS95: Virginia Housing
    • DS96: Virginia Population
    • DS97: Washington Housing
    • DS98: Washington Population
    • DS99: West Virginia Housing
    • DS100: West Virginia Population
    • DS101: Wisconsin Housing
    • DS102: Wisconsin Population
    • DS103: Wyoming Housing
    • DS104: Wyoming Population
    • DS105: United States Housing
    • DS106: United States Population
Temporal Coverage
  • 2008-11 / 2009-12
    Time period: 2008-11--2009-12
  • 2008-11 / 2009-12
    Collection date: 2008-11--2009-12
Geographic Coverage
  • Alabama
  • Alaska
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Connecticut
  • Delaware
  • District of Columbia
  • Florida
  • Georgia
  • Hawaii
  • Idaho
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Louisiana
  • Maine
  • Maryland
  • Massachusetts
  • Michigan
  • Minnesota
  • Mississippi
  • Missouri
  • Montana
  • Nebraska
  • Nevada
  • New Hampshire
  • New Jersey
  • New Mexico
  • New York (state)
  • North Carolina
  • North Dakota
  • Ohio
  • Oklahoma
  • Oregon
  • Pennsylvania
  • Puerto Rico
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • United States
  • Utah
  • Vermont
  • Virginia
  • Washington
  • West Virginia
  • Wisconsin
  • Wyoming
Sampled Universe
All persons and housing units in the United States.
Collection Mode
  • computer-assisted personal interview (CAPI), computer-assisted telephone interview (CATI), mail questionnaire, telephone interview

    Parts 105 and 106 represent, respectively, the entire United States Housing and Population datasets for the 2009 American Community Survey (ACS). Both parts 105 and 106 are quite large and should be downloaded at the discretion of the user.

    ICPSR suggests SDA online analysis for those users who wish to use the United States ACS housing and population datasets but have decided not to download the respective parts: United States Housing SDA, United States Population SDA.

    Any state's housing and population data files can be merged via the variable SERIALNO to create a hierarchical data file. The hierarchical data structure represents the responses of all individuals reported living in a given housing unit. Individuals can be distinguished by the variable SPORDER (Person Number). If users are merging files, keep in mind that estimates of family, household, and housing characteristics will make use of the housing weights. Estimates of person characteristics will use the person weights.

    Users are strongly encouraged to read all documentation regarding sampling errors and weights prior to merging files. Documentation is available for download or can be accessed on the American Community Survey Web site.

This version of the study is no longer available on the web. If you need to acquire this version of the data, you have to contact ICPSR User Support (
Alternative Identifiers
  • 33802 (Type: ICPSR Study Number)
  • Is previous version of
    DOI: 10.3886/ICPSR33802.v1
  • Stucky, Thomas D., Payton, Seth B., Ottensmann, John R.. Intra- and inter-neighborhood income inequality and crime. Journal of Crime and Justice.2015.
    • ID: 10.1080/0735648X.2015.1004551 (DOI)
  • Fan, Jessie X., Wen, Ming, Kowaleski-Jones, Lori. An ecological analysis of environmental correlates of active commuting in urban U.S.. Health and Place.30, 242-250.2014.
    • ID: 10.1016/j.healthplace.2014.09.014 (DOI)

Update Metadata: 2015-08-05 | Issue Number: 6 | Registration Date: 2015-06-16

United States Department of Commerce. Bureau of the Census (2013): American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2009. Archival Version. American Community Survey (ACS) Series. Version: v0. ICPSR - Interuniversity Consortium for Political and Social Research. Dataset.