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Country
Religions (%)
Afghanistan Sunni Muslim 80%, Shi'a Muslim 19%, other 1%
Albania Muslim 70%, Albanian Orthodox 20%, Roman Catholic 10%
note: percentages are estimates; there are no available current statistics on religious affiliation; all mosques and churches were closed in 1967 and religious observances prohibited; in November 1990, Albania began allowing private religious practice
Algeria Sunni Muslim (state religion) 99%, Christian and Jewish 1%
American Samoa Christian Congregationalist 50%, Roman Catholic 20%, Protestant and other 30%
Andorra Roman Catholic (predominant)
Angola indigenous beliefs 47%, Roman Catholic 38%, Protestant 15% (1998 est.)
Anguilla Anglican 29%, Methodist 23.9%, other Protestant 30.2%, Roman Catholic 5.7%, other Christian 1.7%, other 5.2%, none or unspecified 4.3% (2001 Census)
Antigua and Barbuda Christian (predominantly Anglican with other Protestant, and some Roman Catholic)
Argentina nominally Roman Catholic 92% (less than 20% practicing), Protestant 2%, Jewish 2%, other 4%
Armenia Armenian Apostolic 94.7%, other Christian 4%, Yezidi (monotheist with elements of nature worship) 1.3%
Aruba Roman Catholic 82%, Protestant 8%, Hindu, Muslim, Confucian, Jewish
Australia Catholic 26.4%, Anglican 20.5%, other Christian 20.5%, Buddhist 1.9%, Muslim 1.5%, other 1.2%, unspecified 12.7%, none 15.3% (2001 Census)
Austria Roman Catholic 73.6%, Protestant 4.7%, Muslim 4.2%, other 3.5%, unspecified 2%, none 12% (2001 census)
Azerbaijan Muslim 93.4%, Russian Orthodox 2.5%, Armenian Orthodox 2.3%, other 1.8% (1995 est.)
note: religious affiliation is still nominal in Azerbaijan; percentages for actual practicing adherents are much lower
Bahamas, The Baptist 35.4%, Anglican 15.1%, Roman Catholic 13.5%, Pentecostal 8.1%, Church of God 4.8%, Methodist 4.2%, other Christian 15.2%, none or unspecified 2.9%, other 0.8% (2000 census)
Bahrain Muslim (Shi'a and Sunni) 81.2%, Christian 9%, other 9.8% (2001 census)
Bangladesh Muslim 83%, Hindu 16%, other 1% (1998)
Barbados Protestant 67% (Anglican 40%, Pentecostal 8%, Methodist 7%, other 12%), Roman Catholic 4%, none 17%, other 12%
Belarus Eastern Orthodox 80%, other (including Roman Catholic, Protestant, Jewish, and Muslim) 20% (1997 est.)
Belgium Roman Catholic 75%, Protestant or other 25%
Belize Roman Catholic 49.6%, Protestant 27% (Pentecostal 7.4%, Anglican 5.3%, Seventh-Day Adventist 5.2%, Mennonite 4.1%, Methodist 3.5%, Jehovah's Witnesses 1.5%), other 14%, none 9.4% (2000)
Benin indigenous beliefs 50%, Christian 30%, Muslim 20%
Bermuda Anglican 23%, Roman Catholic 15%, African Methodist Episcopal 11%, other Protestant 18%, other 12%, unaffiliated 6%, unspecified 1%, none 14% (2000 census)
Bhutan Lamaistic Buddhist 75%, Indian- and Nepalese-influenced Hinduism 25%
Bolivia Roman Catholic 95%, Protestant (Evangelical Methodist) 5%
Bosnia and Herzegovina Muslim 40%, Orthodox 31%, Roman Catholic 15%, other 14%
Botswana Christian 71.6%, Badimo 6%, other 1.4%, unspecified 0.4%, none 20.6% (2001 census)
Brazil Roman Catholic (nominal) 73.6%, Protestant 15.4%, Spiritualist 1.3%, Bantu/voodoo 0.3%, other 1.8%, unspecified 0.2%, none 7.4% (2000 census)
British Virgin Islands Protestant 86% (Methodist 33%, Anglican 17%, Church of God 9%, Seventh-Day Adventist 6%, Baptist 4%, Jehovah's Witnesses 2%, other 15%), Roman Catholic 10%, none 2%, other 2% (1991)
Brunei Muslim (official) 67%, Buddhist 13%, Christian 10%, indigenous beliefs and other 10%
Bulgaria Bulgarian Orthodox 82.6%, Muslim 12.2%, other Christian 1.2%, other 4% (2001 census)
Burkina Faso Muslim 50%, indigenous beliefs 40%, Christian (mainly Roman Catholic) 10%
Burma Buddhist 89%, Christian 4% (Baptist 3%, Roman Catholic 1%), Muslim 4%, animist 1%, other 2%
Burundi Christian 67% (Roman Catholic 62%, Protestant 5%), indigenous beliefs 23%, Muslim 10%
Cambodia Theravada Buddhist 95%, other 5%
Cameroon indigenous beliefs 40%, Christian 40%, Muslim 20%
Canada Roman Catholic 42.6%, Protestant 23.3% (including United Church 9.5%, Anglican 6.8%, Baptist 2.4%, Lutheran 2%), other Christian 4.4%, Muslim 1.9%, other and unspecified 11.8%, none 16% (2001 census)
Cape Verde Roman Catholic (infused with indigenous beliefs); Protestant (mostly Church of the Nazarene)
Cayman Islands United Church (Presbyterian and Congregational), Anglican, Baptist, Church of God, other Protestant, Roman Catholic
Central African Republic indigenous beliefs 35%, Protestant 25%, Roman Catholic 25%, Muslim 15%
note: animistic beliefs and practices strongly influence the Christian majority
Chad Muslim 51%, Christian 35%, animist 7%, other 7%
Chile Roman Catholic 89%, Protestant 11%, Jewish NEGL%
China Daoist (Taoist), Buddhist, Christian 3%-4%, Muslim 1%-2%
note: officially atheist (2002 est.)
Christmas Island Buddhist 36%, Muslim 25%, Christian 18%, other 21% (1997)
Cocos (Keeling) Islands Sunni Muslim 80%, other 20% (2002 est.)
Colombia Roman Catholic 90%, other 10%
Comoros Sunni Muslim 98%, Roman Catholic 2%
Congo, Democratic Republic of the Roman Catholic 50%, Protestant 20%, Kimbanguist 10%, Muslim 10%, other syncretic sects and indigenous beliefs 10%
Congo, Republic of the Christian 50%, animist 48%, Muslim 2%
Cook Islands Cook Islands Christian Church 55.9%, Roman Catholic 16.8%, Seventh-Day Adventists 7.9%, Church of Latter Day Saints 3.8%, other Protestant 5.8%, other 4.2%, unspecified 2.6%, none 3% (2001 census)
Costa Rica Roman Catholic 76.3%, Evangelical 13.7%, Jehovah's Witnesses 1.3%, other Protestant 0.7%, other 4.8%, none 3.2%
Cote d'Ivoire Muslim 35-40%, indigenous 25-40%, Christian 20-30% (2001)
note: the majority of foreigners (migratory workers) are Muslim (70%) and Christian (20%)
Croatia Roman Catholic 87.8%, Orthodox 4.4%, other Christian 0.4%, Muslim 1.3%, other and unspecified 0.9%, none 5.2% (2001 census)
Cuba nominally 85% Roman Catholic prior to CASTRO assuming power; Protestants, Jehovah's Witnesses, Jews, and Santeria are also represented
Cyprus Greek Orthodox 78%, Muslim 18%, Maronite, Armenian Apostolic, and other 4%
Czech Republic Roman Catholic 26.8%, Protestant 2.1%, other 3.3%, unspecified 8.8%, unaffiliated 59% (2001 census)
Denmark Evangelical Lutheran 95%, other Protestant and Roman Catholic 3%, Muslim 2%
Djibouti Muslim 94%, Christian 6%
Dominica Roman Catholic 77%, Protestant 15% (Methodist 5%, Pentecostal 3%, Seventh-Day Adventist 3%, Baptist 2%, other 2%), other 6%, none 2%
Dominican Republic Roman Catholic 95%
East Timor Roman Catholic 90%, Muslim 4%, Protestant 3%, Hindu 0.5%, Buddhist, Animist (1992 est.)
Ecuador Roman Catholic 95%, other 5%
Egypt Muslim (mostly Sunni) 90%, Coptic 9%, other Christian 1%
El Salvador Roman Catholic 83%, other 17%
note: there is extensive activity by Protestant groups throughout the country; by the end of 1992, there were an estimated 1 million Protestant evangelicals in El Salvador
Equatorial Guinea nominally Christian and predominantly Roman Catholic, pagan practices
Eritrea Muslim, Coptic Christian, Roman Catholic, Protestant
Estonia Evangelical Lutheran 13.6%, Orthodox 12.8%, other Christian (including Methodist, Seventh-Day Adventist, Roman Catholic, Pentecostal) 1.4%, unaffiliated 34.1%, other and unspecified 32%, none 6.1% (2000 census)
Ethiopia Muslim 45%-50%, Ethiopian Orthodox 35%-40%, animist 12%, other 3%-8%
European Union Roman Catholic, Protestant, Orthodox, Muslim, Jewish
Falkland Islands (Islas Malvinas) primarily Anglican, Roman Catholic, United Free Church, Evangelist Church, Jehovah's Witnesses, Lutheran, Seventh-Day Adventist
Faroe Islands Evangelical Lutheran
Fiji Christian 52% (Methodist 37%, Roman Catholic 9%), Hindu 38%, Muslim 8%, other 2%
note: Fijians are mainly Christian, Indians are Hindu, and there is a Muslim minority
Finland Lutheran National Church 84.2%, Greek Orthodox in Finland 1.1%, other Christian 1.1%, other 0.1%, none 13.5% (2003)
France Roman Catholic 83%-88%, Protestant 2%, Jewish 1%, Muslim 5%-10%, unaffiliated 4%
overseas departments: Roman Catholic, Protestant, Hindu, Muslim, Buddhist, pagan
French Polynesia Protestant 54%, Roman Catholic 30%, other 10%, no religion 6%
Gabon Christian 55%-75%, animist, Muslim less than 1%
Gambia, The Muslim 90%, Christian 9%, indigenous beliefs 1%
Gaza Strip Muslim (predominantly Sunni) 98.7%, Christian 0.7%, Jewish 0.6%
Georgia Orthodox Christian 83.9%, Muslim 9.9%, Armenian-Gregorian 3.9%, Catholic 0.8%, other 0.8%, none 0.7% (2002 census)
Germany Protestant 34%, Roman Catholic 34%, Muslim 3.7%, unaffiliated or other 28.3%
Ghana Christian 63%, Muslim 16%, indigenous beliefs 21%
Gibraltar Roman Catholic 78.1%, Church of England 7%, other Christian 3.2%, Muslim 4%, Jewish 2.1%, Hindu 1.8%, other or unspecified 0.9%, none 2.9% (2001 census)
Greece Greek Orthodox 98%, Muslim 1.3%, other 0.7%
Greenland Evangelical Lutheran
Grenada Roman Catholic 53%, Anglican 13.8%, other Protestant 33.2%
Guam Roman Catholic 85%, other 15% (1999 est.)
Guatemala Roman Catholic, Protestant, indigenous Mayan beliefs
Guernsey Anglican, Roman Catholic, Presbyterian, Baptist, Congregational, Methodist
Guinea Muslim 85%, Christian 8%, indigenous beliefs 7%
Guinea-Bissau indigenous beliefs 50%, Muslim 45%, Christian 5%
Guyana Christian 50%, Hindu 35%, Muslim 10%, other 5%
Haiti Roman Catholic 80%, Protestant 16% (Baptist 10%, Pentecostal 4%, Adventist 1%, other 1%), none 1%, other 3%
note: roughly half of the population practices Voodoo
Holy See (Vatican City) Roman Catholic
Honduras Roman Catholic 97%, Protestant 3%
Hong Kong eclectic mixture of local religions 90%, Christian 10%
Hungary Roman Catholic 51.9%, Calvinist 15.9%, Lutheran 3%, Greek Catholic 2.6%, other Christian 1%, other or unspecified 11.1%, unaffiliated 14.5% (2001 census)
Iceland Lutheran Church of Iceland 85.5%, Reykjavik Free Church 2.1%, Roman Catholic Church 2%, Hafnarfjorour Free Church 1.5%, other Christian 2.7%, other or unspecified 3.8%, unaffiliated 2.4% (2004)
India Hindu 80.5%, Muslim 13.4%, Christian 2.3%, Sikh 1.9%, other 1.8%, unspecified 0.1% (2001 census)
Indonesia Muslim 88%, Protestant 5%, Roman Catholic 3%, Hindu 2%, Buddhist 1%, other 1% (1998)
Iran Shi'a Muslim 89%, Sunni Muslim 9%, Zoroastrian, Jewish, Christian, and Baha'i 2%
Iraq Muslim 97% (Shi'a 60%-65%, Sunni 32%-37%), Christian or other 3%
Ireland Roman Catholic 88.4%, Church of Ireland 3%, other Christian 1.6%, other 1.5%, unspecified 2%, none 3.5% (2002 census)
Isle of Man Anglican, Roman Catholic, Methodist, Baptist, Presbyterian, Society of Friends
Israel Jewish 76.4%, Muslim 16%, Arab Christians 1.7%, other Christian 0.4%, Druze 1.6%, unspecified 3.9% (2004)
Italy approximately 90% Roman Catholic (about one-third regularly attend services); mature Protestant and Jewish communities and a growing Muslim immigrant community
Jamaica Protestant 61.3% (Church of God 21.2%, Seventh-Day Adventist 9%, Baptist 8.8%, Pentecostal 7.6%, Anglican 5.5%, Methodist 2.7%, United Church 2.7%, Jehovah's Witness 1.6%, Brethren 1.1%, Moravian 1.1%), Roman Catholic 4%, other including some spiritual cults 34.7%
Japan observe both Shinto and Buddhist 84%, other 16% (including Christian 0.7%)
Jersey Anglican, Roman Catholic, Baptist, Congregational New Church, Methodist, Presbyterian
Jordan Sunni Muslim 92%, Christian 6% (majority Greek Orthodox, but some Greek and Roman Catholics, Syrian Orthodox, Coptic Orthodox, Armenian Orthodox, and Protestant denominations), other 2% (several small Shi'a Muslim and Druze populations) (2001 est.)
Kazakhstan Muslim 47%, Russian Orthodox 44%, Protestant 2%, other 7%
Kenya Protestant 45%, Roman Catholic 33%, indigenous beliefs 10%, Muslim 10%, other 2%
note: a large majority of Kenyans are Christian, but estimates for the percentage of the population that adheres to Islam or indigenous beliefs vary widely
Kiribati Roman Catholic 52%, Protestant (Congregational) 40%, some Seventh-Day Adventist, Muslim, Baha'i, Latter-day Saints, Church of God (1999)
Korea, North traditionally Buddhist and Confucianist, some Christian and syncretic Chondogyo (Religion of the Heavenly Way)
note: autonomous religious activities now almost nonexistent; government-sponsored religious groups exist to provide illusion of religious freedom
Korea, South no affiliation 46%, Christian 26%, Buddhist 26%, Confucianist 1%, other 1%
Kuwait Muslim 85% (Sunni 70%, Shi'a 30%), Christian, Hindu, Parsi, and other 15%
Kyrgyzstan Muslim 75%, Russian Orthodox 20%, other 5%
Laos Buddhist 60%, animist and other 40% (including various Christian denominations 1.5%)
Latvia Lutheran, Roman Catholic, Russian Orthodox
Lebanon Muslim 59.7% (Shi'a, Sunni, Druze, Isma'ilite, Alawite or Nusayri), Christian 39% (Maronite Catholic, Greek Orthodox, Melkite Catholic, Armenian Orthodox, Syrian Catholic, Armenian Catholic, Syrian Orthodox, Roman Catholic, Chaldean, Assyrian, Copt, Protestant), other 1.3%
note: 17 religious sects recognized
Lesotho Christian 80%, indigenous beliefs 20%
Liberia indigenous beliefs 40%, Christian 40%, Muslim 20%
Libya Sunni Muslim 97%
Liechtenstein Roman Catholic 76.2%, Protestant 7%, unknown 10.6%, other 6.2% (June 2002)
Lithuania Roman Catholic 79%, Russian Orthodox 4.1%, Protestant (including Lutheran and Evangelical Christian Baptist) 1.9%, other or unspecified 5.5%, none 9.5% (2001 census)
Luxembourg 87% Roman Catholic, 13% Protestants, Jews, and Muslims (2000)
Macau Buddhist 50%, Roman Catholic 15%, none and other 35% (1997 est.)
Macedonia Macedonian Orthodox 64.7%, other Christian 0.37%, Muslim 33.3%, other and unspecified 1.63% (2002 census)
Madagascar indigenous beliefs 52%, Christian 41%, Muslim 7%
Malawi Christian 79.9%, Muslim 12.8%, other 3%, none 4.3% (1998 census)
Malaysia Muslim, Buddhist, Daoist, Hindu, Christian, Sikh; note - in addition, Shamanism is practiced in East Malaysia
Maldives Sunni Muslim
Mali Muslim 90%, indigenous beliefs 9%, Christian 1%
Malta Roman Catholic 98%
Marshall Islands Protestant 54.8%, Assembly of God 25.8%, Roman Catholic 8.4%, Bukot nan Jesus 2.8%, Mormon 2.1%, other Christian 3.6%, other 1%, none 1.5% (1999 census)
Mauritania Muslim 100%
Mauritius Hindu 48%, Roman Catholic 23.6%, other Christian 8.6%, Muslim 16.6%, other 2.5%, unspecified 0.3%, none 0.4% (2000 census)
Mayotte Muslim 97%, Christian (mostly Roman Catholic)
Mexico nominally Roman Catholic 89%, Protestant 6%, other 5%
Micronesia, Federated States of Roman Catholic 50%, Protestant 47%, other 3%
Moldova Eastern Orthodox 98%, Jewish 1.5%, Baptist and other 0.5% (2000)
Monaco Roman Catholic 90%
Mongolia Buddhist Lamaist 50%, none 40%, Shamanist and Christian 6%, Muslim 4% (2004)
Montenegro Orthodox, Muslim, Roman Catholic
Montserrat Anglican, Methodist, Roman Catholic, Pentecostal, Seventh-Day Adventist, other Christian denominations
Morocco Muslim 98.7%, Christian 1.1%, Jewish 0.2%
Mozambique Catholic 23.8%, Muslim 17.8%, Zionist Christian 17.5%, other 17.8%, none 23.1% (1997 census)
Namibia Christian 80% to 90% (Lutheran 50% at least), indigenous beliefs 10% to 20%
Nauru Christian (two-thirds Protestant, one-third Roman Catholic)
Nepal Hindu 80.6%, Buddhist 10.7%, Muslim 4.2%, Kirant 3.6%, other 0.9% (2001 census)
note: only official Hindu state in the world
Netherlands Roman Catholic 31%, Dutch Reformed 13%, Calvinist 7%, Muslim 5.5%, other 2.5%, none 41% (2002)
Netherlands Antilles Roman Catholic 72%, Pentecostal 4.9%, Protestant 3.5%, Seventh-Day Adventist 3.1%, Methodist 2.9%, Jehovah's Witnesses 1.7%, other Christian 4.2%, Jewish 1.3%, other or unspecified 1.2%, none 5.2% (2001 census)
New Caledonia Roman Catholic 60%, Protestant 30%, other 10%
New Zealand Anglican 14.9%, Roman Catholic 12.4%, Presbyterian 10.9%, Methodist 2.9%, Pentecostal 1.7%, Baptist 1.3%, other Christian 9.4%, other 3.3%, unspecified 17.2%, none 26% (2001 census)
Nicaragua Roman Catholic 72.9%, Evangelical 15.1%, Moravian 1.5%, Episcopal 0.1%, other 1.9%, none 8.5% (1995 census)
Niger Muslim 80%, remainder indigenous beliefs and Christian
Nigeria Muslim 50%, Christian 40%, indigenous beliefs 10%
Niue Ekalesia Niue (Niuean Church - a Protestant church closely related to the London Missionary Society) 61.1%, Latter-Day Saints 8.8%, Roman Catholic 7.2%, Jehovah's Witnesses 2.4%, Seventh-Day Adventist 1.4%, other 8.4%, unspecified 8.7%, none 1.9% (2001 census)
Norfolk Island Anglican 34.9%, Roman Catholic 11.7%, Uniting Church in Australia 11.2%, Seventh-Day Adventist 2.8%, Australian Christian 2.4%, Jehovah's Witness 0.9%, other 2.7%, unspecified 15.3%, none 18.1% (2001 census)
Northern Mariana Islands Christian (Roman Catholic majority, although traditional beliefs and taboos may still be found)
Norway Church of Norway 85.7%, Pentecostal 1%, Roman Catholic 1%, other Christian 2.4%, Muslim 1.8%, other 8.1% (2004)
Oman Ibadhi Muslim 75%, Sunni Muslim, Shi'a Muslim, Hindu
Pakistan Muslim 97% (Sunni 77%, Shi'a 20%), Christian, Hindu, and other 3%
Palau Roman Catholic 41.6%, Protestant 23.3%, Modekngei 8.8% (indigenous to Palau), Seventh-Day Adventist 5.3%, Jehovah's Witness 0.9%, Latter-Day Saints 0.6%, other religion 3.1%, unspecified or none 16.4% (2000 census)
Panama Roman Catholic 85%, Protestant 15%
Papua New Guinea Roman Catholic 22%, Lutheran 16%, Presbyterian/Methodist/London Missionary Society 8%, Anglican 5%, Evangelical Alliance 4%, Seventh-Day Adventist 1%, other Protestant 10%, indigenous beliefs 34%
Paraguay Roman Catholic 90%, Mennonite and other Protestant 10%
Peru Roman Catholic 81%, Seventh Day Adventist 1.4%, other Christian 0.7%, other 0.6%, unspecified or none 16.3% (2003 est.)
Philippines Roman Catholic 80.9%, Evangelical 2.8%, Iglesia ni Kristo 2.3%, Aglipayan 2%, other Christian 4.5%, Muslim 5%, other 1.8%, unspecified 0.6%, none 0.1% (2000 census)
Pitcairn Islands Seventh-Day Adventist 100%
Poland Roman Catholic 89.8% (about 75% practicing), Eastern Orthodox 1.3%, Protestant 0.3%, other 0.3%, unspecified 8.3% (2002)
Portugal Roman Catholic 94%, Protestant (1995)
Puerto Rico Roman Catholic 85%, Protestant and other 15%
Qatar Muslim 95%
Romania Eastern Orthodox (including all sub-denominations) 86.8%, Protestant (various denominations including Reformate and Pentecostal) 7.5%, Roman Catholic 4.7%, other (mostly Muslim) and unspecified 0.9%, none 0.1% (2002 census)
Russia Russian Orthodox 15-20%, Muslim 10-15%, other Christian 2% (2006 est.)
note: estimates are of practicing worshipers; Russia has large populations of non-practicing believers and non-believers, a legacy of over seven decades of Soviet rule
Rwanda Roman Catholic 56.5%, Protestant 26%, Adventist 11.1%, Muslim 4.6%, indigenous beliefs 0.1%, none 1.7% (2001)
Saint Helena Anglican (majority), Baptist, Seventh-Day Adventist, Roman Catholic
Saint Kitts and Nevis Anglican, other Protestant, Roman Catholic
Saint Lucia Roman Catholic 67.5%, Seventh Day Adventist 8.5%, Pentecostal 5.7%, Anglican 2%, Evangelical 2%, other Christian 5.1%, Rastafarian 2.1%, other 1.1%, unspecified 1.5%, none 4.5% (2001 census)
Saint Pierre and Miquelon Roman Catholic 99%
Saint Vincent and the Grenadines Anglican 47%, Methodist 28%, Roman Catholic 13%, Hindu, Seventh-Day Adventist, other Protestant
Samoa Congregationalist 34.8%, Roman Catholic 19.6%, Methodist 15%, Latter-Day Saints 12.7%, Assembly of God 6.6%, Seventh-Day Adventist 3.5%, other Christian 4.5%, Worship Centre 1.3%, other 1.7%, unspecified 0.1% (2001 census)
San Marino Roman Catholic
Sao Tome and Principe Catholic 70.3%, Evangelical 3.4%, New Apostolic 2%, Adventist 1.8%, other 3.1%, none 19.4% (2001 census)
Saudi Arabia Muslim 100%
Senegal Muslim 94%, Christian 5% (mostly Roman Catholic), indigenous beliefs 1%
Serbia Serbian Orthodox, Muslim, Roman Catholic, Protestant
Seychelles Roman Catholic 82.3%, Anglican 6.4%, Seventh Day Adventist 1.1%, other Christian 3.4%, Hindu 2.1%, Muslim 1.1%, other non-Christian 1.5%, unspecified 1.5%, none 0.6% (2002 census)
Sierra Leone Muslim 60%, indigenous beliefs 30%, Christian 10%
Singapore Buddhist 42.5%, Muslim 14.9%, Taoist 8.5%, Hindu 4%, Catholic 4.8%, other Christian 9.8%, other 0.7%, none 14.8% (2000 census)
Slovakia Roman Catholic 68.9%, Protestant 10.8%, Greek Catholic 4.1%, other or unspecified 3.2%, none 13% (2001 census)
Slovenia Catholic 57.8%, Orthodox 2.3%, other Christian 0.9%, Muslim 2.4%, unaffiliated 3.5%, other or unspecified 23%, none 10.1% (2002 census)
Solomon Islands Church of Melanesia 32.8%, Roman Catholic 19%, South Seas Evangelical 17%, Seventh-Day Adventist 11.2%, United Church 10.3%, Christian Fellowship Church 2.4%, other Christian 4.4%, other 2.4%, unspecified 0.3%, none 0.2% (1999 census)
Somalia Sunni Muslim
South Africa Zion Christian 11.1%, Pentecostal/Charismatic 8.2%, Catholic 7.1%, Methodist 6.8%, Dutch Reformed 6.7%, Anglican 3.8%, other Christian 36%, Islam 1.5%, other 2.3%, unspecified 1.4%, none 15.1% (2001 census)
Spain Roman Catholic 94%, other 6%
Sri Lanka Buddhist 69.1%, Muslim 7.6%, Hindu 7.1%, Christian 6.2%, unspecified 10% (2001 census provisional data)
Sudan Sunni Muslim 70% (in north), indigenous beliefs 25%, Christian 5% (mostly in south and Khartoum)
Suriname Hindu 27.4%, Protestant 25.2% (predominantly Moravian), Roman Catholic 22.8%, Muslim 19.6%, indigenous beliefs 5%
Swaziland Zionist 40% (a blend of Christianity and indigenous ancestral worship), Roman Catholic 20%, Muslim 10%, Anglican, Bahai, Methodist, Mormon, Jewish and other 30%
Sweden Lutheran 87%, Roman Catholic, Orthodox, Baptist, Muslim, Jewish, Buddhist
Switzerland Roman Catholic 41.8%, Protestant 35.3%, Orthodox 1.8%, other Christian 0.4%, Muslim 4.3%, other 1%, unspecified 4.3%, none 11.1% (2000 census)
Syria Sunni Muslim 74%, Alawite, Druze, and other Muslim sects 16%, Christian (various sects) 10%, Jewish (tiny communities in Damascus, Al Qamishli, and Aleppo)
Taiwan mixture of Buddhist, Confucian, and Taoist 93%, Christian 4.5%, other 2.5%
Tajikistan Sunni Muslim 85%, Shi'a Muslim 5%, other 10% (2003 est.)
Tanzania mainland - Christian 30%, Muslim 35%, indigenous beliefs 35%; Zanzibar - more than 99% Muslim
Thailand Buddhist 94.6%, Muslim 4.6%, Christian 0.7%, other 0.1% (2000 census)
Togo indigenous beliefs 51%, Christian 29%, Muslim 20%
Tokelau Congregational Christian Church 70%, Roman Catholic 28%, other 2%
note: on Atafu, all Congregational Christian Church of Samoa; on Nukunonu, all Roman Catholic; on Fakaofo, both denominations, with the Congregational Christian Church predominant
Tonga Christian (Free Wesleyan Church claims over 30,000 adherents)
Trinidad and Tobago Roman Catholic 26%, Hindu 22.5%, Anglican 7.8%, Baptist 7.2%, Pentecostal 6.8%, other Christian 5.8%, Muslim 5.8%, Seventh Day Adventist 4%, other 10.8%, unspecified 1.4%, none 1.9% (2000 census)
Tunisia Muslim 98%, Christian 1%, Jewish and other 1%
Turkey Muslim 99.8% (mostly Sunni), other 0.2% (mostly Christians and Jews)
Turkmenistan Muslim 89%, Eastern Orthodox 9%, unknown 2%
Turks and Caicos Islands Baptist 40%, Anglican 18%, Methodist 16%, Church of God 12%, other 14% (1990)
Tuvalu Church of Tuvalu (Congregationalist) 97%, Seventh-Day Adventist 1.4%, Baha'i 1%, other 0.6%
Uganda Roman Catholic 33%, Protestant 33%, Muslim 16%, indigenous beliefs 18%
Ukraine Ukrainian Orthodox - Kyiv Patriarchate 19%, Orthodox (no particular jurisdiction) 16%, Ukrainian Orthodox - Moscow Patriarchate 9%, Ukrainian Greek Catholic 6%, Ukrainian Autocephalous Orthodox 1.7%, Protestant, Jewish, none 38% (2004 est.)
United Arab Emirates Muslim 96% (Shi'a 16%), Christian, Hindu, and other 4%
United Kingdom Christian (Anglican, Roman Catholic, Presbyterian, Methodist) 71.6%, Muslim 2.7%, Hindu 1%, other 1.6%, unspecified or none 23.1% (2001 census)
United States Protestant 52%, Roman Catholic 24%, Mormon 2%, Jewish 1%, Muslim 1%, other 10%, none 10% (2002 est.)
Uruguay Roman Catholic 66% (less than half of the adult population attends church regularly), Protestant 2%, Jewish 1%, nonprofessing or other 31%
Uzbekistan Muslim 88% (mostly Sunnis), Eastern Orthodox 9%, other 3%
Vanuatu Presbyterian 31.4%, Anglican 13.4%, Roman Catholic 13.1%, Seventh-Day Adventist 10.8%, other Christian 13.8%, indigenous beliefs 5.6% (including Jon Frum cargo cult), other 9.6%, none 1%, unspecified 1.3% (1999 Census)
Venezuela nominally Roman Catholic 96%, Protestant 2%, other 2%
Vietnam Buddhist 9.3%, Catholic 6.7%, Hoa Hao 1.5%, Cao Dai 1.1%, Protestant 0.5%, Muslim 0.1%, none 80.8% (1999 census)
Virgin Islands Baptist 42%, Roman Catholic 34%, Episcopalian 17%, other 7%
Wallis and Futuna Roman Catholic 99%, other 1%
West Bank Muslim 75% (predominantly Sunni), Jewish 17%, Christian and other 8%
Western Sahara Muslim
World Christians 33.03% (of which Roman Catholics 17.33%, Protestants 5.8%, Orthodox 3.42%, Anglicans 1.23%), Muslims 20.12%, Hindus 13.34%, Buddhists 5.89%, Sikhs 0.39%, Jews 0.23%, other religions 12.61%, non-religious 12.03%, atheists 2.36% (2004 est.)
Yemen Muslim including Shaf'i (Sunni) and Zaydi (Shi'a), small numbers of Jewish, Christian, and Hindu
Zambia Christian 50%-75%, Muslim and Hindu 24%-49%, indigenous beliefs 1%
Zimbabwe syncretic (part Christian, part indigenous beliefs) 50%, Christian 25%, indigenous beliefs 24%, Muslim and other 1%

This page was last updated on 18 January, 2007
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