American Community Survey (ACS)

Important information about 2017 geography and variable changes, as well as guidance for novice ACS PUMS files users.

  2017 ACS 1-year PUMS ReadMe   [<1.0 MB]

A list of topics included in each of the housing and population record files

  2017 ACS 1-year PUMS Subjects   [<1.0 MB]

Includes variables available for each PUMS release and how each variable is coded

  2017 ACS 1-year PUMS Data Dictionary   [<1.0 MB]

  2017 ACS 1-year PUMS Data Dictionary   [<1.0 MB]

  2017 ACS 1-year PUMS Data Dictionary   [<1.0 MB]

Detailed codes for variables that contain a large number of coded responses, such as ancestry and occupation

  2017 ACS 1-year PUMS Code Lists   [6.8 MB]

List of variables with responses exceeding a state-specific value that are replaced with a predetermined value.

  2017 ACS PUMS Top & Bottom Coded Variables [PDF]   [<1.0 MB]

  2017 ACS PUMS Top & Bottom Coded Values [CSV]   [<1.0 MB]

A basic explanation of the sample design, estimation methodology, and accuracy of the data.

  2017 ACS 1-year PUMS Accuracy [PDF]   [<1.0 MB]

  2017 ACS 1-year PUMS Design Factors (Attachment A) [CSV]   [<1.0 MB]

Note that some of these estimates may be different from the estimates for the same characteristics published in the American FactFinder. For an explanation of these differences, see the Accuracy of the PUMS above.

  2017 ACS 1-year PUMS estimates [SAS]   [<1.0 MB]

  2017 ACS 1-year PUMS estimates [CSV]   [<1.0 MB]

  2017 ACS 1-year PUMS record counts [CSV]   [<1.0 MB]