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2021 AHS Summary Table Estimates and Public Use Files Released on Thursday, September 29!

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On Thursday, September 29, HUD and the Census Bureau released 2021 AHS summary table estimates in the AHS Table Creator and 2021 AHS National and Metro Public Use File (PUF) microdata. The Table Creator release includes national estimates, estimates for 25 large metropolitan areas, and estimates for nine states. The National and Metro PUF release includes microdata for the nation and 25 large metropolitan areas. In additional to the “core” modules, the 2021 AHS included six topical modules: Delinquent Payments and Notices; Intent to Move; Expanded Renter Housing Search; Wildfire Risk; Smoking; and Pets.

Accompanying the release of the summary table estimates are revised Table Creator Release Notes and Table Creator Help Guide.

Accompanying the release to the 2021 AHS PUF are updates to the AHS web-based Codebook.

Additionally, HUD and the Census Bureau have released an updated version of the Sample Case History microdata file. This file details the history of all cases in the AHS national sample and metropolitan area samples from 2015 through 2021.

Technical Documents Released

Also accompanying the releases are five technical documents on the 2021 AHS:

  • 2021 Subject Definitions

  • 2021 National Sample Design, Weighting, and Error Estimation

  • 2021 Metropolitan Sample Design, Weighting, and Error Estimation

  • 2021 Historical Changes

  • 2021 Items Booklet (Questionnaire)

Major AHS Help Guide Updates

Also accompanying the releases, the Census Bureau revised and re-released seven AHS Help Guides:

  • Getting Started with the PUF: 2015 and Beyond

  • Metropolitan Area Oversample Histories: 2015 and Beyond

  • Quick Guide to Metropolitan Area Histories: 1974 to Current

  • HUD-Assisted Renter Oversample: 2015 and Beyond

  • Dependent Interviewing: 2015 and Beyond

  • Disclosure Avoidance Techniques: 2015 and Beyond

  • Item Nonresponse and Imputation: 2015 and Beyond

2021 AHS PUF Support Products Released

Accompanying the 2021 AHS PUF release, HUD and the Census Bureau released two products that support AHS PUF users. The 2021 Value Labels Package is a series of SAS® programs that help assign values to PUF categorical variables. The 2021 Table Specifications show the code used to create summary table estimates from microdata. AHS users may find it helpful to use the Table Specifications code to replicate summary table estimates using the PUF.

The AHS team is committed to making it as easy as possible to access and use AHS data. We want to hear from you. If you have questions or suggestions about future infographics we should produce, call us at 1-800-245-2691 or email us at Thank you for your continued interest in the American Housing Survey.