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Code Lists, Definitions, and Accuracy

View the detailed codes and definitions for variables, statistical testing, and an explanation of sample design, methodology, and accuracy for the American Community Survey.

2008
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2008

Subject Definitions

Definitions of population and housing variables to help you understand the results of the American Community Survey

Group Quarters Definitions

Definitions for classifying group living situations according to the type of housing and/or services provided

Comparison Guidance

Learn more about comparing the 2008 ACS 1-year with the 2007 ACS 1-year and Census 2000, and the 2006-2008 ACS 3-year with Census 2000.

Instructions for Applying Statistical Testing

Basic instructions for obtaining the ACS standard errors needed to do statistical testing

Statistical Testing Tool

Spreadsheet to quickly test whether ACS estimates are statistically different from one another

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