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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.

2007
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2007

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 2007 ACS 1-Year and 2005-2007 ACS 3-Year with Census 2000, and the 2007 ACS 1-Year with 2006 ACS 1-Year.

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

Accuracy of the Data

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

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