| Country | Religions |
| 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 (includes syncretic sects and indigenous beliefs) 10% |
| Congo, Republic of the | Christian 50%, animist 48%, Muslim 2% |
| Cook Islands | Protestant 69.6% (Cook Islands Christian Church 55.9%, Seventh-Day Adventist 7.9%, other Protestant 5.8%), Roman Catholic 16.8%, Mormon 3.8%, other 4.2%, unspecified 2.6%, none 3% (2001 census) |
| Coral Sea Islands | void |
| 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 38.6%, Christian 32.8%, indigenous 11.9%, none 16.7% (2008 est.) 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 Roman Catholic 85%, Protestant, Jehovah's Witnesses, Jewish, Santeria note: prior to CASTRO assuming power |
| Curacao | Roman Catholic 80.1%, Protestant 11.2% (Pentecostal 3.5%, Seventh-Day Adventist 2.2%, other Protestant 5.5%), none 4.6%, Jehovah's Witnesses 1.7%, Jewish 0.8%, other 1.3%, not reported 0.3% (2001 census) |
| Cyprus | Greek Orthodox 78%, Muslim 18%, other (includes Maronite and Armenian Apostolic) 4% |
| Czech Republic | Roman Catholic 26.8%, Protestant 2.1%, other 3.3%, unspecified 8.8%, unaffiliated 59% (2001 census) |
| Denmark | Evangelical Lutheran (official) 95%, other Christian (includes Protestant and Roman Catholic) 3%, Muslim 2% |
| Dhekelia | void |
| Djibouti | Muslim 94%, Christian 6% |
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This page was last updated on 3 February, 2012 |
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