"[P]rovides statistics on religious bodies--both the in U.S. and internationally.... Figures for U.S. denominations ... can be had at the state, county, and zip code level for 1980, 1990, and 2000 while profiles for the entire denomination can include more historic data. Statistics on religious adherents are available for entire countries along with various socio-economic measures. GIS Maps are available, and it is possible to cross-reference geographies with practices. Downloadable datasets...."[website]
American Religion Data Archive (ARDA)
Statistical Abstracts (U.S. Census data on religious populations)
Religion Data Resources (Hartford Institute for Religion Research)
U.S Religious Landscape Survey (Pew Forum on Religious and Public Life)
