Statistics and Data

World Religion Database (WRD)

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 to offer a definitive picture of international religious demography. It offers best estimates at multiple dates for each of the world's religions for the period 1900 to 2050.

Religious Statistics

This guide describes information about religious statistics available from Harvard Divinity School Library and online through the Harvard Library.