| Afghanistan |
Islam (Sunni 80%, Shiite 19%), other 1% |
| Albania |
Islam 70%, Albanian Orthodox 20%, Roman Catholic 10% (est.) |
| Algeria |
Islam (Sunni) 99% (state religion), Christian and Jewish 1% |
| Andorra |
Roman Catholic (predominant) |
| Angola |
Indigenous 47%, Roman Catholic 38%, Protestant 15% (1998 est.) |
| Antigua and Barbuda |
Christian (predominantly Anglican and other Protestant; some Roman Catholic) |
| Argentina |
Roman Catholic 92%, Protestant 2%, Jewish 2%, other 4% |
| Armenia |
Armenian Apostolic 95%, other Christian 4%, Yezidi 1% |
| Australia |
Roman Catholic 26%, Anglican 21%, other Christian 21%, Buddhist 2%, Islam 2%, other 1%, none 15% (2001) |
| Austria |
Roman Catholic 74%, Protestant 5%, Islam 4%, none 12% (2001) |
| Azerbaijan |
Islam 93%, Russian Orthodox 3%, Armenian Orthodox 2%, other 2% (1995 est.) |
| Bahamas |
Baptist 35%, Anglican 15%, Roman Catholic 14%, Pentecostal 8%, Church of God 5%, Methodist 4%, other Christian 15% (2000) |
| Bahrain |
Islam (Shiite and Sunni) 81%, Christian 9% |
| Bangladesh |
Islam 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 50%, Protestant 27% (Pentecostal 7%, Anglican 5%, Seventh-Day Adventist 5%, Mennonite 4%, Methodist 4%, Jehovah's Witnesses 2%), none 9%, other 14% (2000) |
| Benin |
indigenous 50%, Christian 30%, Islam 20% |
| Bhutan |
Lamaistic Buddhist 75%, Indian- and Nepalese-influenced Hinduism 25% |
| Bolivia |
Roman Catholic 95%, Protestant (Evangelical Methodist) 5% |
| Bosnia and Herzegovina |
Islam 40%, Orthodox 31%, Roman Catholic 15%, other 14% |
| Botswana |
Christian 72%, Badimo 6%, none 21% (2001) |
| Brazil |
Roman Catholic 74%, Protestant 15%, Spiritualist 1%, none 7% (2000) |
| Brunei |
Islam (official religion) 67%, Buddhist 13%, Christian 10%, indigenous beliefs and other 10% |
| Bulgaria |
Bulgarian Orthodox 83%, Islam 12%, other Christian 1% (2001) |
| Burkina Faso |
Islam 50%, indigenous beliefs 40%, Christian (mainly Roman Catholic) 10% |
| Burundi |
Roman Catholic 62%, indigenous 23%, Islam 10%, Protestant 5% |
| Cambodia |
Theravada Buddhist 95%, others 5% |
| Cameroon |
indigenous beliefs 40%, Christian 40%, Islam 20% |
| Canada |
Roman Catholic 43%, Protestant 23% (including United Church 10%, Anglican 7%, Baptist 2%, Lutheran 2%), other Christian 4%, Muslim 2%, none 16% (2001) |
| Cape Verde |
Roman Catholic (infused with indigenous beliefs), Protestant (mostly Church of the Nazarene) |
| Central African Republic |
indigenous beliefs 35%, Protestant and Roman Catholic (both with animist influence) 25% each, Islam 15% |
| Chad |
Islam 51%, Christian 35%, animist 7%, other 7% |
| Chile |
Roman Catholic 89%, Protestant 11%, small Jewish population |
| China |
Officially atheist; Daoist (Taoist), Buddhist, Christian 3%?4%, Muslim 1%?2% (2002 est.) |
| Colombia |
Roman Catholic 90% |
| Comoros |
Sunni Muslim 98%, Roman Catholic 2% |
| Congo, Democratic Republic of the |
Roman Catholic 50%, Protestant 20%, Kimbanguist 10%, Islam 10%; other syncretic and indigenous 10% |
| Congo, Republic of |
Christian 50%, animist 48%, Islam 2% |
| Costa Rica |
Roman Catholic 76%, Evangelical 14%, Jehovah's Witnesses 1%, other Protestant 1%, other 5%, none 3% |
| Cte d'Ivoire |
indigenous 25%?40%, Islam 35%?40%, Christian 20%?30% (2001) |
| Croatia |
Roman Catholic 88%, Orthodox 4%, Muslim 1%, other Christian less than 1%, none 5% (2001) |
| Cuba |
predominantly Roman Catholic and Santera (Afro-Cuban syncretic religion) |
| Cyprus |
Greek Orthodox 78%, Islam 18%, Maronite, Armenian Apostolic, and other 4% |
| Czech Republic |
Roman Catholic 27%, Protestant 2%, unaffiliated 59% (2001) |
| Denmark |
Evangelical Lutheran 95%, other Protestant and Roman Catholic 3%, Muslim 2% |
| Djibouti |
Islam 94%, Christian 6% |
| Dominica |
Roman Catholic 77%, Protestant 15% (Methodist 5%, Pentecostal 3%, Seventh-Day Adventist 3%, Baptist 2%, other 2%), none 2% |
| Dominican Republic |
Roman Catholic 95% |
| East Timor |
Roman Catholic 90%, Islam 4%, Protestant 3%, Hindu 0.5%, Buddhist, animist (1992 est.) |
| Ecuador |
Roman Catholic 95% |
| Egypt |
Islam (mostly Sunni) 90%, Coptic 9%, Christian 1%, other 6% |
| El Salvador |
Catholics 83%; growing population of evangelical Protestants (1992) |
| Equatorial Guinea |
nominally Christian and predominantly Roman Catholic, pagan practices |
| Eritrea |
Islam, Eritrean Orthodox Christianity, Roman Catholic, Protestant |
| Estonia |
Evangelical Lutheran 14%, Russian Orthodox 13%, other Christian (including Methodist, Seventh-Day Adventist, Roman Catholic, Pentecostal) 1%, unaffiliated 34%, none 6% (2001) |
| Ethiopia |
Islam 45%?50%, Ethiopian Orthodox 35%?40%, animist 12%, other 3%?8% |
| Fiji |
Christian 52% (Methodist 37%, Roman Catholic 9%), Hindu 38%, Islam 8%, other 2% |
| Finland |
Evangelical Lutheran 84%, Greek Orthodox 1%, other Christian 1%, none 14% |
| France |
Roman Catholic 83%?88%, Protestant 2%, Islam 5%?10%, Jewish 1%, unaffiliated 4% |
| Gabon |
Christian 55%?75%, animist, Islam less than 1% |
| Gambia |
Islam 90%, Christian 9%, indigenous 1% |
| Georgia |
Orthodox 84%, Islam 10%, Armenian-Gregorian 4%, Catholic 1% (2002) |
| Germany |
Protestant 34%, Roman Catholic 34%, Islam 4%, Unaffiliated or other 28% |
| Ghana |
Christian 63%, indigenous beliefs 21%, Islam 16% |
| Greece |
Greek Orthodox 98%, Islam 1%, other 1% |
| Grenada |
Roman Catholic 53%, Anglican 14%, other Protestant 33% |
| Guatemala |
Roman Catholic, Protestant, indigenous Mayan beliefs |
| Guinea |
Islam 85%, Christian 8%, indigenous 7% |
| Guinea-Bissau |
indigenous beliefs 50%, Islam 45%, Christian 5% |
| Guyana |
Christian 50%, Hindu 35%, Islam 10%, other 5% |
| French Guiana |
Christians – 84.4%, Buddhists – less than 1%, Folk religions – less than 9.1%, Hindus – less than 1.6%, Jews – less than 1%, Muslims – less than 1%. |
| Haiti |
Roman Catholic 80%, Protestant 16% (Baptist 10%, Pentecostal 4%, Adventist 1%, other 1%), other 3%, none 1%. Note: roughly half the population practices Vaudou |
| Honduras |
Roman Catholic 97%, Protestant 3% |
| Hungary |
Roman Catholic 52%, Calvinist 16%, Lutheran 3%, Greek Catholic 3%, other Christian 1%, unaffiliated 15% (2001) |
| 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 81%, Islam 13%, Christian 2%, Sikh 2% (2001) |
| Indonesia |
Islam 88%, Protestant 5%, Roman Catholic 3%, Hindu 2%, Buddhist 1% (1998) |
| Iran |
Islam 98% (Shi'a 89%, Sunni 9%); Zoroastrian, Jewish, Christian, and Baha'i 2% |
| Iraq |
Islam 97% (Shiite 60%?65%, Sunni 32%?37%), Christian or other 3% |
| Ireland |
Roman Catholic 88%, Church of Ireland 3%, other Christian 2%, none 4% |
| Israel |
Judaism 77%, Islam 16%, Christian 2%, Druze 2% (2003) |
| Italy |
Roman Catholic approx. 90%, Protestant, Jewish, Islamic |
| Jamaica |
Protestant 61.3%, (Church of God 21.2%, Baptist 8.8%, Anglican 5.5%, Seventh-Day Adventist 9%, Pentecostal 7.6%, Methodist 2.7%, United Church 2.7%, Brethren 1.1%, Jehovah's Witness 1.6%, Moravian 1.1%), Roman Catholic 4%, other including some spiritual cults 34.7% |
| Japan |
Shintoist and Buddhist 84%, other 16% (including Christian 0.7%) |
| Jordan |
Islam (Sunni) 92%, Christian 6% (mostly Greek Orthodox), other 2% |
| Kazakhstan |
Islam 47%, Russian Orthodox 44%, Protestant 2%, other 7% |
| Kenya |
Protestant 45%, Roman Catholic 33%, indigenous beliefs 10%, Islam 10%, others 2% (note: estimates vary widely) |
| Kiribati |
Roman Catholic 52%, Protestant (Congregational) 40%, some Seventh-Day Adventist, Muslim, Baha'i, Latter-day Saints, and Church of God (1999) |
| Korea, North |
Buddhism and Confucianism; religious activities almost nonexistent |
| Korea, South |
no affiliation 46%, Christian 26%, Buddhist 26%, Confucianist 1%, other 1% |
| Kuwait |
Islam 85% (Sunni 70%, Shiite 30%); Christian, Hindu, Parsi, and other 15% |
| Kyrgyzstan |
Islam 75%; Russian Orthodox 20%; other 5% |
| Laos |
Buddhist 60%, animist and other 40% (including Christian 2%) |
| Latvia |
Lutheran, Roman Catholic, Russian Orthodox |
| Lebanon |
Islam 60% (Shi'a, Sunni, Druze, Isma'ilite, Alawite/Nusayri), Christian 39% (Maronite, Melkite, Syrian, Armenian, and Roman Catholic; Greek, Armenian, and Syrian Orthodox; Chaldean; Assyrian; Copt; Protestant), other 1% |
| Lesotho |
Christian 80%, indigenous beliefs 20% |
| Liberia |
traditional 40%, Christian 40%, Islam 20% |
| Libya |
Islam (Sunni) 97% |
| Liechtenstein |
Roman Catholic, 77%, Protestant, 7%; unknown, 11% (2002) |
| Lithuania |
Roman Catholic 79%, Russian Orthodox 4%, Protestant (including Lutheran, evangelical Christian Baptist) 2%, none 10% (2001) |
| Luxembourg |
Roman Catholic 87%; Protestant, Jewish, Islamic 13% (2000) |
| Macedonia |
Macedonian Orthodox 32%, Islam 17% (2002) |
| Madagascar |
indigenous beliefs 52%, Christian 41%, Islam 7% |
| Malawi |
Christian 80%, Islam 13%, none 4% (1998) |
| Malaysia |
Muslim, Buddhist, Daoist, Hindu, Christian, Sikh; Shamanism (East Malaysia) |
| Maldives |
Islam (Sunni) |
| Mali |
Islam 90%, indigenous beliefs 9%, Christian 1% |
| Malta |
Roman Catholic 98% |
| Marshall Islands |
Protestant 55%, Assembly of God 26%, Roman Catholic 8%, Bukot nan Jesus 3%, Mormon 2%, other Christian 4%, none 2% (1999) |
| Mauritania |
Islam 100% |
| Mauritius |
Hindu 48%, Roman Catholic 24%, other Christian 8%, Islam 17% (2000) |
| Mexico |
nominally Roman Catholic 89%, Protestant 6%, other 5% |
| Micronesia |
Roman Catholic 50%, Protestant 47% |
| Moldova |
Eastern Orthodox 98%, Jewish 1.5%, Baptist and other 0.5% (2000) |
| Monaco |
Roman Catholic 90% |
| Mongolia |
Buddhist Lamaist 50%, Islam 4%, Shamanism and Christian 4%, none 40% (2004) |
| Montenegro |
Orthodox, Muslim, Roman Catholic |
| Morocco |
Islam 99%, Christian 1% |
| Mozambique |
Mozambique 24%, Islam 18%, Zionist Christian 18%, none 23% (1997) |
| Myanmar |
Buddhist 89%, Christian 4% (Baptist 3%, Roman Catholic 1%), Islam 4%, Animist 1%, other 2% |
| Namibia |
Christian 80%?90% (Lutheran at least 50%), indigenous beliefs 10%?20% |
| Nauru |
Christian (two-thirds Protestant, one-third Roman Catholic) |
| Nepal |
Hindu 81%, Buddhist 11%, Islam 4%, Kirant 4% (2001) |
| Netherlands |
Roman Catholic 31%, Dutch Reformed 13%, Calvinist 7%, Islam 6%, none 41% (2002) |
| New Zealand |
Anglican 15%, Roman Catholic 12%, Presbyterian 11%, Methodist 3%, Pentecostal 2%, Baptist 1%, other Christian 9%, none 26% (2001) |
| Nicaragua |
Roman Catholic 73%, Evangelical 15%, Moravian 2%, none 9% (1995) |
| Niger |
Islam 80%, indigenous beliefs and Christian 20% |
| Nigeria |
Islam 50%, Christian 40%, indigenous beliefs 10% |
| Norway |
Evangelical Lutheran 86% (state church), Pentecostal 1%, Roman Catholic 1%, other Christian 2% (2004) |
| Oman |
Islam: Ibadhi 75%, Sunni, Shi'a; Hindu |
| Pakistan |
Islam 97% (Sunni 77%, Shiite 20%); Christian, Hindu, and other 3% |
| Palau |
Roman Catholic 42%, Protestant 23%, Modekngei 9% (indigenous), Seventh-Day Adventist 5%, Jehovah's Witness 1%, Latter-Day Saints 1%, other religion 3%, unspecified or none 16% (2000) |
| Palestine |
West Bank: Islam 75% (predominantly Sunni), Jewish 17%, Christian and other 8%; Gaza Strip: Islam 98.7% (predominantly Sunni), Christian 0.7%, Jewish 0.6%. |
| 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, other Protestant 10% |
| Peru |
Roman Catholic 81%, Seventh-Day Adventist 1%, other Christian 1%, unspecified or none 16% (2003 est.) |
| Philippines |
Roman Catholic 81%, Evangelical 3%, Iglesia ni Kristo 2%, Aglipayan 2%, other Christian 5%, Islam 5% (2000) |
| Poland |
Roman Catholic 90% (about 75% practicing), Eastern Orthodox 1%, Protestant and other (2002) |
| Portugal |
Roman Catholic 94%, Protestant (1995) |
| Qatar |
Islam 95% |
| Romania |
Romanian Orthodox 87%, Protestant 8%, Roman Catholic 5%, Islam and other (2002) |
| Russia |
Russian Orthodox 15%?20%, other Christian 2%, Islam 10%?15% (2006 est.; includes practicing worshippers only) |
| Rwanda |
Roman Catholic 56.5%, Protestant 26%, Adventist 11.1%, Islam 4.6%, indigenous beliefs 0.1%, none 1.7% (2001) |
| St. Kitts and Nevis |
Anglican, other Protestant, Roman Catholic |
| St. Lucia |
Roman Catholic 68%, Seventh-Day Adventist 9%, Pentecostal 6%, Evangelical 2%, Anglican 2%, other Christian 5%, Rastafarian 2%, none 5% (2001) |
| St. 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) |
| San Marino |
Roman Catholic |
| So Tom and Prncipe |
Catholic 70%, Evangelical 3%, New Apostolic 2%, Adventist 2%, other 3%, none 19% (2001) |
| Saudi Arabia |
Islam 100% |
| Senegal |
Islam 94%, Christian 5% (mostly Roman Catholic), indigenous 1% |
| Serbia |
Serbian Orthodox, Muslim, Roman Catholic, Protestant |
| Seychelles |
Roman Catholic 83%, Anglican 6%, Seventh-Day Adventist 1%, other Christian 3%, Hindu 2%, Muslim 1%, none 1% |
| Sierra Leone |
Islam 60%, indigenous 30%, Christian 10% |
| Singapore |
Buddhist 43%, Islam 15%, Taoist 9%, Hindu 4%, Catholic 5%, other Christian 10%, none 15% (2000) |
| Slovakia |
Roman Catholic 69%, Protestant 11%, Greek Catholic 4%, none 13% (2001) |
| Slovenia |
Catholic 58% Orthodox 2%, other Christian 1%, Islam 2%, none 10% |
| Solomon Islands |
Church of Melanesia 33%, Roman Catholic 19%, Seventh-Day Adventist 11%, United Church 10%, Christian Fellowship Church 2%, other Christian 4% (1999) |
| Somalia |
Islam (Sunni) |
| South Africa |
Zion Christian 11%, Pentecostal/Charismatic 8%, Catholic 7%, Methodist 7%, Dutch Reformed 7%, Anglican 4%, other Christian 36%, Islam 2%, none 15% (2001) |
| Spain |
Roman Catholic 94%, other 6% |
| Sri Lanka |
Buddhist 70%, Islam 8%, Hindu 7%, Christian 6% (2001) |
| Sudan |
Islam (Sunni) 70% (in north), indigenous 25%, Christian 5% (mostly in south and Khartoum) |
| Suriname |
Hindu 27.4%, Protestant 25.2% (predominantly Moravian), Roman Catholic 22.8%, Islam 19.6%, indigenous 5% |
| Swaziland |
Zionist (a blend of Christianity and indigenous ancestral worship) 40%; 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 42%, Protestant 35%, Orthodox 2%, Muslim 4%, none 11% (2000) |
| Syria |
Islam (Sunni) 74%; Alawite, Druze, and other Islamic 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 |
Islam: Sunni 85%, Shiite 5%; other 10% (2003 est.) |
| Tanzania |
mainland: Christian 30%, Islam 35%, indigenous 35%; Zanzibar: more than 99% Islam |
| Thailand |
Buddhist 95%, Islam 5%, Christian 1% (2000) |
| Togo |
Indigenous beliefs 51%, Christian 29%, Islam 20% |
| Tonga |
Christian (Free Wesleyan Church claims over 30,000 adherents) |
| Trinidad and Tobago |
Roman Catholic 26%, Anglican 8%, Baptist 7%, Pentecostal 7%, Seventh-Day Adventist 4%, other Christian 6%, Hindu 22%, Islam 6%, none 2% |
| Tunisia |
Islam (Sunni) 98%, Christian 1%, Jewish and other 1% |
| Turkey |
Islam (mostly Sunni) 99.8%, other 0.2% (mostly Christians and Jews) |
| Turkmenistan |
Islam 89%, Eastern Orthodox 9%, unknown 2% |
| Tuvalu |
Church of Tuvalu (Congregationalist) 97%, Seventh-Day Adventist 1%, Baha'i 1% |
| Uganda |
Roman Catholic 33%, Protestant 33%, Islam 16%, indigenous beliefs 18% |
| Ukraine |
Ukrainian Orthodox (Kiev Patriarchate 19%, Moscow Patriarchate 9%, no particular division 16%), Ukrainian Greek Catholic 6%, Ukrainian Autocephalous Orthodox 2%, Protestant, Jewish, none 38% (2004) |
| United Arab Emirates |
Islam 96% (Sunni 80%, Shiite 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) |
| United States |
Protestant 52%, Roman Catholic 24%, Mormon 2%, Jewish 1%, Muslim 1%, none 10% (2002) |
| Uruguay |
Roman Catholic 66%, Protestant 2%, Jewish 1% |
| Uzbekistan |
Islam (mostly Sunnis) 88%, Eastern Orthodox 9% |
| Vanuatu |
Presbyterian 31%, Anglican 13%, Roman Catholic 13%, Seventh-Day Adventist 11%, other Christian 14%, indigenous beliefs 6% (including Jon Frum Cargo cult), none 1% |
| Vatican City (Holy See) |
Roman Catholic. |
| Venezuela |
Roman Catholic 96%, Protestant 2% |
| Vietnam |
Buddhist 9%, Catholic 7%, Hoa Hao 2%, Cao Dai 1%, Protestant, Islam, none 81% |
| Yemen |
Islam (including Sunni and Shiite), small numbers of Jewish, Christian, and Hindu |
| Zambia |
Christian 50%?75%, Islam and Hindu 24%?49%, indigenous beliefs 1% |
| Zimbabwe |
syncretic (part Christian, part indigenous beliefs) 50%, Christian 25%, indigenous beliefs 24%, Muslim and other 1% |
