About The World Religion Database
The World Religion Database (WRD) contains detailed statistics on religious affiliation for every country of the world. It provides information from country censuses as well as best estimates for every religion to offer a definitive picture of religion and non-religion in the past, present, and future.
The WRD offers best estimates at multiple dates for each of the world’s religions (18 categories, including atheists and agnostics) for the period 1900 to 2050. The WRD will be updated with new information as it becomes available, such as estimates of religious affiliation at the province level within countries and religious freedom information for all countries.
Religions
All major world religions, available by geographic region and people groups.
Geography
Comprehensive country religious makeup, demographics, and trends.
Religious diversity
Religious Diversity Index (RDI) and counts of religions over 10%, over 5%, and over 0.5%.
Contextual data
Population data by country, plus socio-economic, health, environment, and gender indicators.
Censuses
Historical and current census data on religion by country.
Archive
A repository of historical data, including surveys.