On this page you will find answers to frequently asked questions and more indepth information about the World Religion Database.
Detailed explanation of WRD sources and methodology.
Definitions for data fields in the database.
Glossary of terms used in the database.
Religions related to the WRD.
Traditions related to the WRD.
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.