The World Religion database is updated twice a year, following research cycles.
The "Peoples" table lists 13,800 ethno-linguistic people groups
All major world religions, available by geographic region and people groups.
Comprehensive country religious makeup, demographics, and trends.
Religious Diversity Index (RDI) and counts of religions over 10%, over 5%, and over 0.5%.
Population data by country, plus socio-economic, health, environment, and gender indicators.
Historical and current census data on religion by country.
A repository of historical data, including surveys.