The ARDA tools and features listed here may help students interested in researching religion.
Review the lineage and membership trends of more than 600 religious groups or view a denominational family tree. [Tutorial Available]
Browse more than 875 data files included in the ARDA collection. You can preview the results, read about how the data were collected, review the survey questions asked, save selected survey questions to your own file or download the data file. [Tutorial Available]
Go to the FAQ to see the answers to questions frequently asked of ARDA staff.
View maps and reports of the United States and individual states for hundreds of variables, including congregational membership, census data, crime statistics and many others.
Offering information on most countries of the world, the profiles include data on religious adherents, religious freedoms, demographics and other social measures for each nation and their region.
Using the best available data, QuickLists provide data on American and international religion in rank order.
Browse dozens of topics and see responses from major national surveys, demographic patterns and changes over time.