Data archives contain raw data files that are used for secondary analysis in research.
Data set files are usually downloaded and manipulated using statistical software such as SPSS or SAS. Sometimes data archives will provide tools for online analysis as well.
Below is a selected list of data archives.
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.
Some of the major organizations involved in research on religion include: