American Community Survey (ACS)

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Subjects Included in the Survey

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Code Lists, Definitions, and Accuracy

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About PUMS

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Methodology

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Design and Methodology Report

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Sample Size

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Guidance for Data Users

Review the list of subjects included in the ACS and get links to the ACS Detailed Tables.

Let us help you find the right data tool for your needs with these user scenarios.

The ACS provides handbooks for 11 distinct data user groups to help you understand the data.

Join the ACS Data Users Group

ACS Data Users Group

Connect with other ACS Data Users by joining the online community. You will be able to learn about ACS related webinars, share ACS data applications and communicate with others about ACS data.

Visit the American Community Survey Data Users Group website to learn more.

More Guidance for Data Users Topics

When to Use 1-year, 3-year, or 5-year Estimates

Learn more about distinguishing features of the ACS 1-year, 3-year, and 5-year estimates and when they are best used.

Comparing ACS Data

Learn more about comparing the ACS with other data, with Census 2000, and 3-year to 3-year or 5-year to 5-year estimates.

American Community Survey Training Presentations

Learn more about American Community Survey (ACS) data and data products, as well as how to train others, with these ACS training presentations.

Related Topics in Other Sections

Technical Documentation

Find information supporting the ACS data, including documentation for code lists, subject definitions, user notes, errata notes, PUMS, and Summary File.

Sample Size and Data Quality

ACS samples about 3.54 million addresses each year. Discover how well that sample covers the population, and how we measure the reliability of ACS estimates.

American Community Survey Data Releases

Learn the dates of each American Community Survey product release, as well as updates on product changes, geography notes, and other relevant information.

Related Information

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Last Revised: June 17, 2018