Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Census Geographies Hierarchy
Guidance & Handbooks
The Evolution of the American Census
This data project visually explores changes in questions asked in each American Census. If you're looking to track data over time, explore how the Census evolved first.
When to use Estimates from the American Community Survey
This Census Bureau resource helps researchers understand when to use 1-Year, 3-Year, or 5-Year estimates from American Community Survey data.
American Community Survey Handbook for Data Users
These Census Bureau Handbooks are tailored to fit different user groups and describe how to best utilize American Community Survey Data.
Introduction to Census 2000 Data Products
This brochure provides a brief introduction to the information available from Census 2000, Census 2000 geography, maps, and data
This webpage provides access to PDFs of Decennial Census reports and publications, including technical documentation, published prior to June 23, 2014.
This website provides access to Census Bureau publications, including reports, briefs, and documentation, published after June 23, 2014. Most publications are PDFs.
“This library is a congressionally designated depository for U.S. Government documents. Public access to the government documents collection is guaranteed by public law. (Title 44 United States Code)”