The 2025 ACS Data Users Conference will be held on May 29, 2025 (virtual day) and June 3, 2025 (in-person in DC)

  • Differences between the versions of ACS PUMS?

    I am aware of three providers of ACS microdata: Census Bureau (currently down due to the government shutdown), IPUMS at University of Missouri (ipums.org), and Missouri Census Data Center (mcdc.missouri.edu). Does anybody know if they are fully compatible…

  • Public Use Microdata Area Boundaries in 2012 ACS PUMS files

    For those who use Public Use Microdata Areas (PUMAs) in the PUMS files, note that the 2008-2012 and 2010-2012 multiyear files are different than previous files because they include two sets of PUMA boundaries. According to the Census Bureau's data documentation…

  • Webinar on ACS PUMS Dual Vintage Variables--Thur, March 13th

    Description: Advanced users learn about the American Community Survey (ACS) Public Use Microdata Sample (PUMS) and how to work with dual vintages of variables included in the ACS PUMS files. This presentation will give a background of the ACS PUMS files…

  • Delays in PUMS release for 2012 ACS files

    According to today's press release from the Census Bureau:
    "The Public Use Microdata Sample files for the 2012 American Community Survey one-year statistics will be released on Dec. 17, (original release date was Oct. 24); the files for the three-year…

  • American Community Survey (ACS) Releases New Videos on Using ACS PUMS with DataFerrett

    The U.S. Census Bureau released two videos about creating custom tables using the American Community Survey Public Use Microdata Sample (PUMS) files and DataFerrett. The ACS PUMS files are a set of untabulated records about individual people and housing…

  • RE: 2022 Population Decrease in 2018-2022 5-Year?

    Why not use the 2018-2022 PUMS instead of those single-year sources?

  • RE: Are the MOEs for two mutually exclusive & completely exhaustive percentages equal?

    Here is the documentation for the PUMS replicate weights:

    https://www.census.gov/content/dam/Census/library/publications/2020/acs/acs_pums_handbook_2020_ch05.pdf

    The weighted estimates calculated using the Public
    Use Microdata Sample (PUMS) files are…

  • RE: Total population differences between table for same census tracts

    Just to add a note about PUMS data.  With the PUMS data the individual disability variables like DEYE are defined for the total population.  If you want to "recreate" the detail tables on data.census.gov from PUMS data you need to look at the MIL PUMS variable…

  • RE: County-level data from ACS 1-Year Estimates Public Use Microdata Sample

    As a general matter you can't get county level estimates from PUMS data.  The only geography for PUMS data is the PUMA. In the case where a county is a "Union" of several PUMAs you can "stack" PUMS data for the corresponding PUMAs.…

  • RE: ACS Summary Tables Compared to Microdata

    Dear Jill,

    You need to use PUMS variables ESR and COW in combination as follows:

    Note the universe for S2408 is the Employed Civilian population 16 years old and over

    # ESR: Employment status recode
    # b [0].N/A (less than 16 years old)
    # 1 .Civilian employed…

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