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Lilly Endowment, Inc.John Templeton FoundationThe Pennsylvania State UniversityBaylor Institute for Studies of Religion
Research Features:
U.S. Congregational Membership Reports
Explore congregational membership in every county, state, and urban area in the United States. Based on the Religious Congregations and Membership Study collected by the Association of Statisticians of American Religious Bodies this is the most complete census available on religious congregations and their members.
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ARDA Newsletter
Would you like to hear about additions to our Data Archive and new features added to TheArda.com? Subscribe to our newsletter to receive email updates. We do not share or sell our subscriber lists.

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U.S. Denominations
Our American Denominations feature provides detailed information and family trees for over 400 U.S. religious denominations.
U.S. Maps
Using tools developed by Social Explorer, Geographic Profiles allow you to visually see the social, economic, demographic, and religious landscape of neighborhoods, cities, states, regions, and the entire United States. Once you are viewing a map you can generate a summary report using a variety of options.

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Compare Yourself
Would you like to see how you compare to other Americans on religion measures? Tell us a little bit about yourself to get started!

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the ARDA:
Providing Free Access to Quality Data on Religion
The ARDA allows you to interactively explore the highest quality data on American and international religion using online features for generating national profiles, GIS maps, church membership overviews, denominational heritage trees, tables, charts, and other reports. Over 450 surveys and other data collections are available for online preview and virtually all can be downloaded free of charge.
News & Research Updates:
U.S. Maps
The ARDA introduces interactive maps and reports for demographic, economic, and religious data. Browse social landscapes of neighborhoods, cities, states, and regions. Powered by Social Explorer.
Begin Your Exploration Now...
Country Comparisons
The new multi-country comparison feature allows you to compare up to eight (8) countries on a variety of demographic, social, economic and religious measures.
Start Comparing Today...
Denominational QuickStats
Inspired by our QuickStats on national surveys, we are now introducing QuickStats for denominations.
View Quickstats for Denominations...

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