World Christian Database: field definitions

Data source: Gina A. Zurlo and Todd M. Johnson, eds., World Christian Database (Leiden/Boston: Brill, 2024).

Table Field Description
communion Denominations Number of member denominations as listed in the denomination report on the council detail screen.
communion Main country for communion Predominant membership or historic base for this communion/council.
communion Year communion begun The year this council or communion was founded.
country % Agnostics who know Christians Percent of Agnostics who know Christians.
country % Buddhists who know Christians Percent of Buddhists who know Christians.
country % Christians who know Agnostics Percent of Christians who know Agnostics.
country % Christians who know Buddhists Percent of Christians who know Buddhists.
country % Christians who know Ethnic religionists Percent of Christians who know Ethnic religionists.
country % Christians who know Hindus Percent of Christians who know Hindus.
country % Christians who know Muslims Percent of Christians who know Muslims.
country % Christians who know non-Christians Percent of Christians who know non-Christians.
country % Ethnic religionists who know Christians Ethnic religionists who know Christians.
country % Hindus who know Christians Percent of Hindus who know Christians.
country % Muslims who know Christians Percent of Muslims who know Christians.
country % non-Christians who know Christians Percent of non-Christians who know Christians.
country Adult % Adults (age 15 and over) as percentage of this country's total population. Primary source: United Nations 2022.
country Adults Population of those age 15 and over in this country in 2020. Primary source: United Nations 2022 revision.
country Agnostic % Number of agnostics as a percentage of the country's population in year 2020 These are persons professing no religion, or professing unbelief or non-belief, non-believers, agnostics, freethinkers, liberal thinkers, non-religious humanists, indifference to both religion and atheism, apathetic, opposed on principle neither to religion nor to atheism; sometimes termed secularists or materialists; also post-Christian, dechristianized or de-religionized populations.
country Agnostics Number of agnostic persons in this country's population. These are persons professing no religion, or professing unbelief or non-belief, non-believers, agnostics, freethinkers, liberal thinkers, non-religious humanists, indifference to both religion and atheism, apathetic, opposed on principle neither to religion nor to atheism; sometimes termed secularists or materialists; also post-Christian, dechristianized or de-religionized populations.
country Agnostics who know Christians Agnostics who know Christians.
country All languages count Count of all ISO languages spoken as the primary language of peoples in this country.
country Atheist % Number of atheists as a percentage of the country's population in year 2020. Atheists are militantly anti-religious or anti-Christian agnostics, secularists, or marxists.
country Atheists Number of Atheists in this country's population. Atheists are persons professing atheism, skepticism, impiety, disbelief or irreligion, or Marxist-Leninist Communism regarded as a political faith, or other quasi-religions, and who abstain from religious activities and have severed all religious affiliation; and others opposed, hostile or militantly opposed to all religion (anti-religious); dialectical materialists, militant non-believers, anti-religious humanists, skeptics.
country Baha'i % Number of Bahais as a percentage of the country's population in year 2020. Bahais are followers of the Bahai World Faith, founded by Bahaullah, since 1844. In government censuses Bahais are usually counted as Muslims or Hindus and not shown separately.
country Baha'is Number of Bahais in this country's population. Bahais are followers of the Bahai World Faith, founded by Bahaullah, since 1844. In government censuses Bahais are usually counted as Muslims or Hindus and not shown separately.
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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.