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.

Religious Statistics: Historical Sources

Religion statistics for research.

Comprehensive Sources

Religious Bodies (U.S. Census Bureau)

The U.S. Census Bureau conducted 4 censuses of religious bodies from 1906-1936.  The adoptation of Public Law 94-521 prohibits the Census Bureau from asking mandatory questions about religious affiliations.  For a complete overview of Census Bureau publications about religion, please visit the Question & Answer Center topic Religion: Data Sources.