Updates

The World Religion database is updated twice a year, generally in January and July.

Updated to 2015 plus documentation revision

01 Apr 2015

base year of WRD has been moved from mid-2010 to current projections for mid-2015

The base year of WRD has been moved from mid-2010 to current projections for mid-2015. Estimates for the number of religionists in every country of the world are now reconciled with the United Nations population projections for mid-2015. The update includes statistics on all world Religions as well Peoples and Countries, with preliminary data on Cities and Provinces.
Also this quarter the WRD Methodology document has been revised to include material from Todd M. Johnson and Brian J. Grim, The World’s Religions in Figures: An Introduction to International Religious Demography (Oxford: Wiley--Blackwell, 2013)

More info...

Additional data points and surveys

01 Jan 2014

The year 2030 is added as an extra data point

The year 2030 is added as an extra data point, which brings to 11 the number of years in the religion over time series best estimates (1900, 1950, 1970, 2000, 2005, 2010, 2015, 2020, 2025, 2030 and 2050). In addition, data from a further 34 European Values Surveys from 2008 to 2009 have been released following analysis.

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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.