| Country | Religions |
| 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 |  Roman Catholic 90% (approximately; about one-third practicing), other 10% (includes mature Protestant and Jewish communities and a growing Muslim immigrant community) |
| Jamaica | Protestant 62.5% (Seventh-Day Adventist 10.8%, Pentecostal 9.5%, Other Church of God 8.3%, Baptist 7.2%, New Testament Church of God 6.3%, Church of God in Jamaica 4.8%, Church of God of Prophecy 4.3%, Anglican 3.6%, other Christian 7.7%), Roman Catholic 2.6%, other or unspecified 14.2%, none 20.9%, (2001 census) |
| Jan Mayen | void |
| 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%, Muslim 10%, indigenous beliefs 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%, other (includes Seventh-Day Adventist, Muslim, Baha'i, Latter-day Saints, Church of God) 8% (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 | Christian 26.3% (Protestant 19.7%, Roman Catholic 6.6%), Buddhist 23.2%, other or unknown 1.3%, none 49.3% (1995 census) |
| Kosovo | Muslim, Serbian Orthodox, Roman Catholic |
| Kuwait | Muslim 85% (Sunni 70%, Shi'a 30%), other (includes Christian, Hindu, Parsi) 15% |
| Kyrgyzstan | Muslim 75%, Russian Orthodox 20%, other 5% |
| Laos | Buddhist 65%, animist 32.9%, Christian 1.3%, other and unspecified 0.8% (1995 census) |
| 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 | Christian 40%, Muslim 20%, indigenous beliefs 40% |
| Libya | Sunni Muslim 97%, other 3% |
| 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 | Roman Catholic 87%, other (includes Protestant, Jewish, and Muslim) 13% (2000) |
| Macau | Buddhist 50%, Roman Catholic 15%, none and other 35% (1997 est.) |
| Macedonia | Macedonian Orthodox 64.7%, Muslim 33.3%, other Christian 0.37%, 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 60.4%, Buddhist 19.2%, Christian 9.1%, Hindu 6.3%, Confucianism, Taoism, other traditional Chinese religions 2.6%, other or unknown 1.5%, none 0.8% (2000 census) |
| Maldives | Sunni Muslim |
| Mali | Muslim 90%, Christian 1%, indigenous beliefs 9% |
| 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%, Muslim 16.6%, other Christian 8.6%, other 2.5%, unspecified 0.3%, none 0.4% (2000 census) |
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This page was last updated on 5 May, 2008 |
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