Use the datasets in the following databases to describe religious affiliations in the regions and time periods in which you are interested. They also include forecasted data based on historical and current trends.
Provided detailed statistics on religious activities, growth rates, religious literature, worker activity, and demography for Christian denominations and other world religions. Additional secular data is included on population, health, education, languages,
and communication in cities and regions of the world.
The World Religion Database contains detailed statistics on religious affiliation for every country of the world. It provides source material, including censuses and surveys, as well as best estimates for every religion for the period 1900 to 2050.