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Religious Adherents, 2010 (World Christian Database)1

Nauru Micronesia (Region) World
Baha'i 9.6% 1.5% 0.1%
Buddhist 1.4% 1.7% 7.2%
Chinese Universalist 10.5% 1.2% 6.3%
Christian 75.0% 93.0% 32.8%
Confucianist 0.0% <0.1% 0.1%
Ethnoreligionist 0.0% 0.8% 3.5%
Hindu 0.0% <0.1% 13.8%
Jain 0.0% 0.0% <0.1%
Jewish 0.0% 0.0% 0.2%
Muslim 0.0% 0.2% 22.5%
Shintoist 0.0% 0.0% <0.1%
Sikh 0.0% 0.0% 0.3%
Spiritist 0.0% 0.0% 0.2%
Taoist 0.0% 0.0% 0.1%
Zoroastrian 0.0% 0.0% <0.1%
Neoreligionists 0.0% 0.3% 0.9%
Atheist 0.0% <0.1% 2.0%
Agnostic 3.5% 1.2% 9.8%

Religious Demography2

The country has an area of 8 square miles and a population of 9,300. Christianity is the primary religion. According to the 2002 census, approximately two-thirds of Christians are Protestant, and the remainder is Catholic. The ethnic Chinese on the island, estimated to constitute approximately 5 percent of the population, may be Confucian, Buddhist, Taoist, Christian, or nonreligious. The Jehovah's Witnesses and the Mormons stated they had small numbers of followers in the country.

Foreign missionaries introduced Christianity in the late 19th and early 20th centuries. There are a few active Christian missionaries, including representatives of Anglicanism, Methodism, Catholicism, and Jehovah’s Witnesses.


Note: The World Christian Database (WCD) estimates, used in the Religious Adherents section above, count each person as belonging to a maximum of one religious group. For more information, see the WCD methodology document. The U.S. State Department's International Religious Freedom report estimates, used in the Religious Demography section, use less restrictive criteria in which a person who identifies with more than one religion is classified as a follower of each. In certain cases (such as Japan and other nations with strong folk religion traditions), this can cause counts to vary widely between estimates. Users are advised to consult the relevant source documents before determining which counts to cite.

1.  The World Christian Database (WCD) is based on the 2600-page award-winning World Christian Encyclopedia and World Christian Trends, first published in 1982 and revised in 2001. This extensive work on World religion is now completely updated and integrated into the WCD online database. Designed for both the casual user and research scholar, information is readily available on religious activities, growth rates, religious literature, worker activity, and demographic statistics. Additional secular data is incorporated on population, health, education, and communications. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. Used with permission.

2.  The U.S. State Department's International Religious Freedom Report is submitted to Congress annually by the Department of State in compliance with Section 102(b) of the International Religious Freedom Act (IRFA) of 1998. This report supplements the most recent Human Rights Reports by providing additional detailed information with respect to matters involving international religious freedom. It includes individual country chapters on the status of religious freedom worldwide. A dataset with these and the other international measures highlighted on the country pages can be downloaded from this website. These State Department reports are open source.

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