Updates

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

Religious Pluralism

01 Oct 2010

Two measures of religious diversity are added

Two measures of religious diversity are added to the World Religion Database this quarter. Firstly, simple counts of religions over certain proportions are shown by country. Secondly, a religious diversity index is calculated using the Herfindahl Index, a measure used by many economists to indicate how market competition is spread among businesses in an industry. See the queries of the most religiously diverse countries under 'Religious Pluralism' on the Top 20 lists page.

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Provincial survey results

01 Jul 2010

124 surveys and censuses have been added

Analyzed results from a further 124 surveys and censuses have been added:

92 Demographic and Health Surveys (1986 - 2008)
32 Censuses (from Egypt 1907 to Ethiopia 2007)

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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.