Now Available: Documentation for the 2017 ACS 1-Year PUMS Files and Supplemental Estimates

We are pleased to announce the first release of documentation in support of the 2017 American Community Survey (ACS) 1-year Public Use Microdata Sample (PUMS) Files and 2017 ACS 1-year Supplemental Estimates scheduled for release on Thursday, October 18, 2018. This documentation offers ACS data users the opportunity to prepare for next week's data releases.

2017 ACS 1-Year Public Use Microdata Sample (PUMS) Documentation

The 2017 tab of the PUMS Technical Documentation page now includes subject definitions, the data dictionary, and code lists:

• Subjects in the PUMS: A list of broad topics included in each of the housing and population record files.
• Data Dictionary: Full listing of all variables (and values) included in each of the housing and population record files. New this year: the PUMS Data Dictionary will be available in a new file format (.csv) in response to data user requests for a machine-readable format. 
• Code Lists: This document contains the detailed codes for variables that contain a large number of coded responses, such as ancestry and occupation.

More documentation will be released on October 18th along with the 2017 ACS 1-year PUMS files.

2017 ACS 1-Year Supplemental Estimates Documentation

New and updated information related to this release is available now on the 2017 Data Release page. Highlights include links to the following:

• Guidance for Data Users: Learn more about when to use 1-year, 1-year Supplemental, and 5-year estimates.
• Geography and ACS: View the geographic areas with published data for the 1-year Supplemental Estimates.
• Modified Tables: View 2017 table changes for a description of this year's modified table.
• Table Shells: View the layout of tables (without the estimates or margins of error filled in) by exploring the 1-year Supplemental Estimates table shells (hint: they begin with the letter "K").