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Geography in the Public Use File: 1985 – 2013
Geography in the AHS PUF microdata can be confusing to many users, for at least a few reasons. First, the AHS is composed of a national sample and separate metropolitan area sample and they contain different geographic indicators. Second, the vintages for some of the geographic indicators have changed over time (e.g. 1983 metropolitan areas versus 2003 metropolitan areas). Third, to protect respondent confidentiality, geographic disclosure avoidance techniques have been applied to most geographic indicators in the AHS PUF microdata. Finally, for 2011, HUD combined the national and metropolitan area samples, thereby creating additional confusion.
The purpose of this document is to provide detailed information about the geographic indicators and geographic disclosure in the AHS samples from 1985 through 2013. To provide clarity, this document separately addresses (1) the national sample; (2) independent metropolitan area samples; and (3) the 2011 combined national/metropolitan area sample.
Page Last Revised - October 8, 2021
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