World Christian Database

Population update

The populations of every religion in every country are freshly reconciled with each biennial revision of the population data produced by the UN: (United Nations, Department of Economic and Social Affairs, Population Division (2015). World Population Prospects: The 2015 Revision).

This WCD update includes the latest re-reconciliation of statistics on all Christian denominations and world religions together with projections of religious adherents for 2020, 2025, 2030 and 2050.

The update also includes over 60 new peoples groups (with more to come) which have either grown sufficiently in size to list separately in a new country, or speak a newly recognized language identified in the 17th edition of the Ethnologue.

Methodological update: Counting Pentecostals is a new section of the methodology document describing WCD's classification of “the Pentecostal and Charismatic Renewal of the Holy Spirit” into three kinds or types.