World Christian Database: field definitions

Data source: Gina A. Zurlo, ed., World Christian Database (Leiden/Boston: Brill, 2026).

Table Field Description
version_2020_country Jew % Number of Jews as a percentage of the country's population in year 2020.
version_2020_country Jews Number of Jews in this country's population.
version_2020_country Life Expectancy The number of years individuals born “this year” in this country's population are expected to live, based on statistical probability. Primary source: United Nations 2019.
version_2020_country Major institutions Number of major institutions in the country in 2000.
version_2020_country Major institutions per m Number of major institutions per million of the country's population.
version_2020_country Major religion count The number of major religions (of 18) significantly present in this country.
version_2020_country Malaria cases per K Number of malaria cases in 2016 per thousand of the country's population. Primary source: World Health Organization, World Malaria Report 2017 (in HDR 2018).
version_2020_country Male pop Population of males in the country (UN).
version_2020_country Martyr pa This figure represents an annual average (from 1950 to 2000) of individuals who die as martyrs in this country. A 'Martyr' is defined as a believer in Christ who has lost his or her life prematurely, in a situation of witness, as a result of human hostility. The figure includes an estimate of 'background martydoms' in undocumentable situations (individual, domestic, family, isolated).
version_2020_country Martyrs 2010. This figure represents the total number of documented martyrs in the country's history (33 to 2010). A 'Martyr' is defined as a believer in Christ who has lost his or her life prematurely, in a situation of witness, as a result of human hostility. Excludes 'background martyrs' in undocumentable situations (individual, domestic, family, isolated).
version_2020_country Mega Cities Number of megacities in this country whose population exceeds 1 million persons.
version_2020_country Metro % Percentage of the nation's total population that live in a metropolitan area.
version_2020_country Metro Pop Number of people that live in a metropolitan area.
version_2020_country Minor Institutions Number of minor institutions in the country in 2000.
version_2020_country Minor Institutions per m Number of minor institutions per million of the country's population.
version_2020_country Mission Agencies Number of foreign mission agencies present in this country in 2000.
version_2020_country Mission Index The below phrase briefly describes the current status of the country's foreign missions presence, openness and participation. "1-7" referring to sharing, receiving, receiving/sending, sending, restricted, partially-closed, closed.
version_2020_country Missionaries Received 2020. Number of people from other countries working as missionaries per million of the country's population.
version_2020_country Missionaries Received 1970 1970. Number of people from other countries working as missionaries per million of the country's population.
version_2020_country Missionaries Received 2000 In 2000, the number of people from other countries working as missionaries in this country.
version_2020_country Missionaries Received 2010 2010. Number of people from other countries working as missionaries in this country.
version_2020_country Missionaries Received per m 2020. Number of people from other countries working as missionaries per million of the country's population.
version_2020_country Missionaries Sent 2020. Number of this country's citizen missionaries working abroad.
version_2020_country Missionaries Sent 1970 1970. Number of this country's citizen missionaries working abroad.
version_2020_country Missionaries Sent 2000 In 2000, the number of this country's citizen missionaries working abroad.
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Religions

Data on 18 categories of religion, including non-religious, by country, province, and people.

Countries and regions

Data on all religions, Christian activities, and trends.

Denominations

Membership data, year begun, and rates of change.

Cities & provinces

Population and religion data on all major cities & provinces.

Peoples & languages

Detailed information covering religion, culture, and geography.

Archive

A repository of historical data, including a chronology of Christianity from the 1st to 21st centuries.