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PUMS Documentation

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Within Microdata

PUMS Documentation

View the available subjects, detailed codes for variables, changes related to each release, an explanation of sample design, methodology, and accuracy, and files to determine if you are using weights correctly for the American Community Survey Public Use Microdata Sample (PUMS) files. These documents are organized by data year.

Supporting data for the documentation below is available on the Accessing PUMS Data page.

2013
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
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  • 2013
  • 2012
  • 2011
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  • 2005
2013

PUMS ReadMe

Information about working with ACS PUMS files, geographies, and variable changes.

pdf 2009-2013 5-year PUMS ReadMe [<1.0 MB]
pdf 2011-2013 3-year PUMS ReadMe [1.2 MB]
pdf 2013 1-year PUMS ReadMe [1.2 MB]

PUMS Top Coded and Bottom Coded Values

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

pdf 2013 Top and Bottom Coded Values [1.3 MB]

Subjects in the PUMS

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

pdf 2009-2013 5-year Subjects [<1.0 MB]
pdf 2011-2013 3-year Subjects [<1.0 MB]
pdf 2013 1-year Subjects [<1.0 MB]

Accuracy of the PUMS

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

pdf 2009-2013 ACS 5-year Accuracy [1.2 MB]
pdf 2011-2013 ACS 3-year PUMS Accuracy [1.3 MB]
pdf 2013 PUMS Accuracy [1.8 MB]

PUMS Data Dictionary

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

pdf 2009-2013 5-year Data Dictionary [5.2 MB]
txt 2009-2013 5-year Data Dictionary [4.3 MB]
pdf 2011-2013 3-year Data Dictionary [5.1 MB]
txt 2011-2013 3-year Data Dictionary [3.7 MB]
pdf 2013 Data Dictionary [3.7 MB]
txt 2013 Data Dictionary [2.6 MB]

PUMS Estimates for User Verification

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.

ftp 2009-2013 PUMS estimates [SAS] [1.6 MB]
ftp 2009-2013 PUMS estimates [LST] [1.8 MB]
xls 2009-2013 PUMS estimates [CSV] [<1.0 MB]
ftp 2011-2013 PUMS estimates [SAS] [1.6 MB]
ftp 2011-2013 PUMS estimates [LST] [1.8 MB]
xls 2011-2013 PUMS estimates [CSV] [<1.0 MB]
ftp 2013 PUMS estimates [SAS] [1.6 MB]
ftp 2013 PUMS estimates [LST] [1.5 MB]
xls 2013 PUMS estimates [CSV] [<1.0 MB]

Code Lists

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

xls 2009-2013 5-year Code Lists [8.0 MB]
xls 2011-2013 3-year Code Lists [7.7 MB]
xls 2013 1-year Code Lists [6.8 MB]

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Page Last Revised - March 13, 2024
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