U.S. Religion Census
1890 to 2020

Sponsored By:
Our Promise To
Participating Groups

This study is not for marketing purposes; names and addresses of congregations are not collected or published. The study works with each participating group to ensure the group's accurate representation.

With Support From:

Member Denominations

We are gearing up now for the 2020 Religion Census. Watch for updates as the census begins.

The 2010 U.S. Religion Census

The U.S. Religion Census is your source for religious data at the county level. It reports the number of congregations in every U.S. county equivalent for each of 236 faith groups.

Check the Lists and Rankings page for county, state, metro, or national totals. Check the maps and charts page for graphic information about specific groups.

A quick overview is available here. This is an update of the 1952, 1971, 1980, 1990, and 2000 studies originally done by the National Council of Churches and the Glenmary Research Center. Since 1990, the Association of Statisticians of American Religious Bodies (ASARB) has sponsored the studies.

Each participating religious body supplies the number of churches, full members, adherents, and attendees for each county. See "Data Collected" for more information. Our data collection office can assist any group with compiling their data to the county level.

The study coincides with the US census. National polls rarely give any religious data below the national level. This study gives a picture of county-level religious affiliation nationwide. The longevity of the study helps to identify trends and track religious change.

Online reports from the 2010 U.S. Religion Census can be obtained for various geographies free of charge from The Association of Religion Data Archives (ARDA). ARDA also archives the previous datasets and makes them available for download.

The book includes data tables, documentation, 32 pages of color maps and charts, and a wall map of religious families by county. It can be ordered at 1-800-877-0700 or on-line. The full-color wall maps are available from Glenmary Research Center.


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