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World Religions

These figures are taken from the CIA World Factbook, a public data source which we also use for our Country Profiles. The figures aren't necessarily from the same years, since different countries have surveyed their religious populations at different times. 

AfghanistanIslam (Sunni 80%, Shiite 19%), other 1%
AlbaniaIslam 70%, Albanian Orthodox 20%, Roman Catholic 10% (est.)
AlgeriaIslam (Sunni) 99% (state religion), Christian and Jewish 1%
AndorraRoman Catholic (predominant)
AngolaIndigenous 47%, Roman Catholic 38%, Protestant 15% (1998 est.)
Antigua and BarbudaChristian (predominantly Anglican and other Protestant; some Roman Catholic)
ArgentinaRoman Catholic 92%, Protestant 2%, Jewish 2%, other 4%
ArmeniaArmenian Apostolic 95%, other Christian 4%, Yezidi 1%
AustraliaRoman Catholic 26%, Anglican 21%, other Christian 21%, Buddhist 2%, Islam 2%, other 1%, none 15% (2001)
AustriaRoman Catholic 74%, Protestant 5%, Islam 4%, none 12% (2001)
AzerbaijanIslam 93%, Russian Orthodox 3%, Armenian Orthodox 2%, other 2% (1995 est.)
BahamasBaptist 35%, Anglican 15%, Roman Catholic 14%, Pentecostal 8%, Church of God 5%, Methodist 4%, other Christian 15% (2000)
BahrainIslam (Shiite and Sunni) 81%, Christian 9%
BangladeshIslam 83%, Hindu 16%, other 1% (1998)
BarbadosProtestant 67% (Anglican 40%, Pentecostal 8%, Methodist 7%, other 12%), Roman Catholic 4%, none 17%, other 12%
BelarusEastern Orthodox 80%, other (including Roman Catholic, Protestant, Jewish, and Muslim) 20% (1997 est.)
BelgiumRoman Catholic 75%, Protestant or other 25%
BelizeRoman 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)
Beninindigenous 50%, Christian 30%, Islam 20%
BhutanLamaistic Buddhist 75%, Indian- and Nepalese-influenced Hinduism 25%
BoliviaRoman Catholic 95%, Protestant (Evangelical Methodist) 5%
Bosnia and HerzegovinaIslam 40%, Orthodox 31%, Roman Catholic 15%, other 14%
BotswanaChristian 72%, Badimo 6%, none 21% (2001)
BrazilRoman Catholic 74%, Protestant 15%, Spiritualist 1%, none 7% (2000)
BruneiIslam (official religion) 67%, Buddhist 13%, Christian 10%, indigenous beliefs and other 10%
BulgariaBulgarian Orthodox 83%, Islam 12%, other Christian 1% (2001)
Burkina FasoIslam 50%, indigenous beliefs 40%, Christian (mainly Roman Catholic) 10%
BurundiRoman Catholic 62%, indigenous 23%, Islam 10%, Protestant 5%
CambodiaTheravada Buddhist 95%, others 5%
Cameroonindigenous beliefs 40%, Christian 40%, Islam 20%
CanadaRoman Catholic 43%, Protestant 23% (including United Church 10%, Anglican 7%, Baptist 2%, Lutheran 2%), other Christian 4%, Muslim 2%, none 16% (2001)
Cape VerdeRoman Catholic (infused with indigenous beliefs), Protestant (mostly Church of the Nazarene)
Central African Republicindigenous beliefs 35%, Protestant and Roman Catholic (both with animist influence) 25% each, Islam 15%
ChadIslam 51%, Christian 35%, animist 7%, other 7%
ChileRoman Catholic 89%, Protestant 11%, small Jewish population
ChinaOfficially atheist; Daoist (Taoist), Buddhist, Christian 3%–4%, Muslim 1%–2% (2002 est.)
ColombiaRoman Catholic 90%
ComorosSunni 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 ofChristian 50%, animist 48%, Islam 2%
Costa RicaRoman Catholic 76%, Evangelical 14%, Jehovah's Witnesses 1%, other Protestant 1%, other 5%, none 3%
Côte d'Ivoireindigenous 25%–40%, Islam 35%–40%, Christian 20%–30% (2001)
CroatiaRoman Catholic 88%, Orthodox 4%, Muslim 1%, other Christian less than 1%, none 5% (2001)
Cubapredominantly Roman Catholic and Santería (Afro-Cuban syncretic religion)
CyprusGreek Orthodox 78%, Islam 18%, Maronite, Armenian Apostolic, and other 4%
Czech RepublicRoman Catholic 27%, Protestant 2%, unaffiliated 59% (2001)
DenmarkEvangelical Lutheran 95%, other Protestant and Roman Catholic 3%, Muslim 2%
DjiboutiIslam 94%, Christian 6%
DominicaRoman Catholic 77%, Protestant 15% (Methodist 5%, Pentecostal 3%, Seventh-Day Adventist 3%, Baptist 2%, other 2%), none 2%
Dominican RepublicRoman Catholic 95%
East TimorRoman Catholic 90%, Islam 4%, Protestant 3%, Hindu 0.5%, Buddhist, animist (1992 est.)
EcuadorRoman Catholic 95%
EgyptIslam (mostly Sunni) 90%, Coptic 9%, Christian 1%, other 6%
El SalvadorCatholics 83%; growing population of evangelical Protestants (1992)
Equatorial Guineanominally Christian and predominantly Roman Catholic, pagan practices
EritreaIslam, Eritrean Orthodox Christianity, Roman Catholic, Protestant
EstoniaEvangelical Lutheran 14%, Russian Orthodox 13%, other Christian (including Methodist, Seventh-Day Adventist, Roman Catholic, Pentecostal) 1%, unaffiliated 34%, none 6% (2001)
EthiopiaIslam 45%–50%, Ethiopian Orthodox 35%–40%, animist 12%, other 3%–8%
FijiChristian 52% (Methodist 37%, Roman Catholic 9%), Hindu 38%, Islam 8%, other 2%
FinlandEvangelical Lutheran 84%, Greek Orthodox 1%, other Christian 1%, none 14%
FranceRoman Catholic 83%–88%, Protestant 2%, Islam 5%–10%, Jewish 1%, unaffiliated 4%
GabonChristian 55%–75%, animist, Islam less than 1%
GambiaIslam 90%, Christian 9%, indigenous 1%
GeorgiaOrthodox 84%, Islam 10%, Armenian-Gregorian 4%, Catholic 1% (2002)
GermanyProtestant 34%, Roman Catholic 34%, Islam 4%, Unaffiliated or other 28%
GhanaChristian 63%, indigenous beliefs 21%, Islam 16%
GreeceGreek Orthodox 98%, Islam 1%, other 1%
GrenadaRoman Catholic 53%, Anglican 14%, other Protestant 33%
GuatemalaRoman Catholic, Protestant, indigenous Mayan beliefs
GuineaIslam 85%, Christian 8%, indigenous 7%
Guinea-Bissauindigenous beliefs 50%, Islam 45%, Christian 5%
GuyanaChristian 50%, Hindu 35%, Islam 10%, other 5%
HaitiRoman Catholic 80%, Protestant 16% (Baptist 10%, Pentecostal 4%, Adventist 1%, other 1%), other 3%, none 1%. Note: roughly half the population practices Vaudou
HondurasRoman Catholic 97%, Protestant 3%
HungaryRoman Catholic 52%, Calvinist 16%, Lutheran 3%, Greek Catholic 3%, other Christian 1%, unaffiliated 15% (2001)
IcelandLutheran 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)
IndiaHindu 81%, Islam 13%, Christian 2%, Sikh 2% (2001)
IndonesiaIslam 88%, Protestant 5%, Roman Catholic 3%, Hindu 2%, Buddhist 1% (1998)
IranIslam 98% (Shi'a 89%, Sunni 9%); Zoroastrian, Jewish, Christian, and Baha'i 2%
IraqIslam 97% (Shiite 60%–65%, Sunni 32%–37%), Christian or other 3%
IrelandRoman Catholic 88%, Church of Ireland 3%, other Christian 2%, none 4%
IsraelJudaism 77%, Islam 16%, Christian 2%, Druze 2% (2003)
ItalyRoman Catholic approx. 90%, Protestant, Jewish, Islamic
JamaicaProtestant 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%
JapanShintoist and Buddhist 84%, other 16% (including Christian 0.7%)
JordanIslam (Sunni) 92%, Christian 6% (mostly Greek Orthodox), other 2%
KazakhstanIslam 47%, Russian Orthodox 44%, Protestant 2%, other 7%
KenyaProtestant 45%, Roman Catholic 33%, indigenous beliefs 10%, Islam 10%, others 2% (note: estimates vary widely)
KiribatiRoman Catholic 52%, Protestant (Congregational) 40%, some Seventh-Day Adventist, Muslim, Baha'i, Latter-day Saints, and Church of God (1999)
Korea, NorthBuddhism and Confucianism; religious activities almost nonexistent
Korea, Southno affiliation 46%, Christian 26%, Buddhist 26%, Confucianist 1%, other 1%
KuwaitIslam 85% (Sunni 70%, Shiite 30%); Christian, Hindu, Parsi, and other 15%
KyrgyzstanIslam 75%; Russian Orthodox 20%; other 5%
LaosBuddhist 60%, animist and other 40% (including Christian 2%)
LatviaLutheran, Roman Catholic, Russian Orthodox
LebanonIslam 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%
LesothoChristian 80%, indigenous beliefs 20%
Liberiatraditional 40%, Christian 40%, Islam 20%
LibyaIslam (Sunni) 97%
LiechtensteinRoman Catholic, 77%, Protestant, 7%; unknown, 11% (2002)
LithuaniaRoman Catholic 79%, Russian Orthodox 4%, Protestant (including Lutheran, evangelical Christian Baptist) 2%, none 10% (2001)
LuxembourgRoman Catholic 87%; Protestant, Jewish, Islamic 13% (2000)
Macedonia Macedonian Orthodox 32%, Islam 17% (2002)
Madagascarindigenous beliefs 52%, Christian 41%, Islam 7%
MalawiChristian 80%, Islam 13%, none 4% (1998)
MalaysiaMuslim, Buddhist, Daoist, Hindu, Christian, Sikh; Shamanism (East Malaysia)
MaldivesIslam (Sunni)
MaliIslam 90%, indigenous beliefs 9%, Christian 1%
MaltaRoman Catholic 98%
Marshall IslandsProtestant 55%, Assembly of God 26%, Roman Catholic 8%, Bukot nan Jesus 3%, Mormon 2%, other Christian 4%, none 2% (1999)
MauritaniaIslam 100%
MauritiusHindu 48%, Roman Catholic 24%, other Christian 8%, Islam 17% (2000)
Mexiconominally Roman Catholic 89%, Protestant 6%, other 5%
MicronesiaRoman Catholic 50%, Protestant 47%
MoldovaEastern Orthodox 98%, Jewish 1.5%, Baptist and other 0.5% (2000)
MonacoRoman Catholic 90%
MongoliaBuddhist Lamaist 50%, Islam 4%, Shamanism and Christian 4%, none 40% (2004)
MontenegroOrthodox, Muslim, Roman Catholic
MoroccoIslam 99%, Christian 1%
MozambiqueMozambique 24%, Islam 18%, Zionist Christian 18%, none 23% (1997)
MyanmarBuddhist 89%, Christian 4% (Baptist 3%, Roman Catholic 1%), Islam 4%, Animist 1%, other 2%
NamibiaChristian 80%–90% (Lutheran at least 50%), indigenous beliefs 10%–20%
NauruChristian (two-thirds Protestant, one-third Roman Catholic)
NepalHindu 81%, Buddhist 11%, Islam 4%, Kirant 4% (2001)
NetherlandsRoman Catholic 31%, Dutch Reformed 13%, Calvinist 7%, Islam 6%, none 41% (2002)
New ZealandAnglican 15%, Roman Catholic 12%, Presbyterian 11%, Methodist 3%, Pentecostal 2%, Baptist 1%, other Christian 9%, none 26% (2001)
NicaraguaRoman Catholic 73%, Evangelical 15%, Moravian 2%, none 9% (1995)
NigerIslam 80%, indigenous beliefs and Christian 20%
NigeriaIslam 50%, Christian 40%, indigenous beliefs 10%
NorwayEvangelical Lutheran 86% (state church), Pentecostal 1%, Roman Catholic 1%, other Christian 2% (2004)
OmanIslam: Ibadhi 75%, Sunni, Shi'a; Hindu
PakistanIslam 97% (Sunni 77%, Shiite 20%); Christian, Hindu, and other 3%
PalauRoman 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)
Palestinian State (proposed)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%.
PanamaRoman Catholic 85%, Protestant 15%
Papua New GuineaRoman 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%
ParaguayRoman Catholic 90%, Mennonite, other Protestant 10%
PeruRoman Catholic 81%, Seventh-Day Adventist 1%, other Christian 1%, unspecified or none 16% (2003 est.)
PhilippinesRoman Catholic 81%, Evangelical 3%, Iglesia ni Kristo 2%, Aglipayan 2%, other Christian 5%, Islam 5% (2000)
PolandRoman Catholic 90% (about 75% practicing), Eastern Orthodox 1%, Protestant and other (2002)
PortugalRoman Catholic 94%, Protestant (1995)
QatarIslam 95%
RomaniaRomanian Orthodox 87%, Protestant 8%, Roman Catholic 5%, Islam and other (2002)
RussiaRussian Orthodox 15%–20%, other Christian 2%, Islam 10%–15% (2006 est.; includes practicing worshippers only)
RwandaRoman Catholic 56.5%, Protestant 26%, Adventist 11.1%, Islam 4.6%, indigenous beliefs 0.1%, none 1.7% (2001)
St. Kitts and NevisAnglican, other Protestant, Roman Catholic
St. LuciaRoman Catholic 68%, Seventh-Day Adventist 9%, Pentecostal 6%, Evangelical 2%, Anglican 2%, other Christian 5%, Rastafarian 2%, none 5% (2001)
St. Vincent and the GrenadinesAnglican 47%, Methodist 28%, Roman Catholic 13%, Hindu, Seventh-Day Adventist, other Protestant
SamoaCongregationalist 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 MarinoRoman Catholic
São Tomé and PríncipeCatholic 70%, Evangelical 3%, New Apostolic 2%, Adventist 2%, other 3%, none 19% (2001)
Saudi ArabiaIslam 100%
SenegalIslam 94%, Christian 5% (mostly Roman Catholic), indigenous 1%
SerbiaSerbian Orthodox, Muslim, Roman Catholic, Protestant
SeychellesRoman Catholic 83%, Anglican 6%, Seventh-Day Adventist 1%, other Christian 3%, Hindu 2%, Muslim 1%, none 1%
Sierra LeoneIslam 60%, indigenous 30%, Christian 10%
SingaporeBuddhist 43%, Islam 15%, Taoist 9%, Hindu 4%, Catholic 5%, other Christian 10%, none 15% (2000)
SlovakiaRoman Catholic 69%, Protestant 11%, Greek Catholic 4%, none 13% (2001)
SloveniaCatholic 58% Orthodox 2%, other Christian 1%, Islam 2%, none 10%
Solomon IslandsChurch of Melanesia 33%, Roman Catholic 19%, Seventh-Day Adventist 11%, United Church 10%, Christian Fellowship Church 2%, other Christian 4% (1999)
SomaliaIslam (Sunni)
South AfricaZion Christian 11%, Pentecostal/Charismatic 8%, Catholic 7%, Methodist 7%, Dutch Reformed 7%, Anglican 4%, other Christian 36%, Islam 2%, none 15% (2001)
SpainRoman Catholic 94%, other 6%
Sri LankaBuddhist 70%, Islam 8%, Hindu 7%, Christian 6% (2001)
SudanIslam (Sunni) 70% (in north), indigenous 25%, Christian 5% (mostly in south and Khartoum)
SurinameHindu 27.4%, Protestant 25.2% (predominantly Moravian), Roman Catholic 22.8%, Islam 19.6%, indigenous 5%
SwazilandZionist (a blend of Christianity and indigenous ancestral worship) 40%; Roman Catholic 20%; Muslim 10%; Anglican, Bahai, Methodist, Mormon, Jewish, and other 30%
SwedenLutheran 87%, Roman Catholic, Orthodox, Baptist, Muslim, Jewish, Buddhist
SwitzerlandRoman Catholic 42%, Protestant 35%, Orthodox 2%, Muslim 4%, none 11% (2000)
SyriaIslam (Sunni) 74%; Alawite, Druze, and other Islamic sects 16%; Christian (various sects) 10%; Jewish (tiny communities in Damascus, Al Qamishli, and Aleppo)
Taiwanmixture of Buddhist, Confucian, and Taoist 93%, Christian 4.5%, other 2.5%
TajikistanIslam: Sunni 85%, Shiite 5%; other 10% (2003 est.)
Tanzaniamainland: Christian 30%, Islam 35%, indigenous 35%; Zanzibar: more than 99% Islam
ThailandBuddhist 95%, Islam 5%, Christian 1% (2000)
TogoIndigenous beliefs 51%, Christian 29%, Islam 20%
TongaChristian (Free Wesleyan Church claims over 30,000 adherents)
Trinidad and TobagoRoman Catholic 26%, Anglican 8%, Baptist 7%, Pentecostal 7%, Seventh-Day Adventist 4%, other Christian 6%, Hindu 22%, Islam 6%, none 2%
TunisiaIslam (Sunni) 98%, Christian 1%, Jewish and other 1%
TurkeyIslam (mostly Sunni) 99.8%, other 0.2% (mostly Christians and Jews)
TurkmenistanIslam 89%, Eastern Orthodox 9%, unknown 2%
TuvaluChurch of Tuvalu (Congregationalist) 97%, Seventh-Day Adventist 1%, Baha'i 1%
UgandaRoman Catholic 33%, Protestant 33%, Islam 16%, indigenous beliefs 18%
UkraineUkrainian 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 EmiratesIslam 96% (Sunni 80%, Shiite 16%), Christian, Hindu, and other 4%
United KingdomChristian (Anglican, Roman Catholic, Presbyterian, Methodist) 71.6%, Muslim 2.7%, Hindu 1%, other 1.6%, unspecified or none 23.1% (2001)
United StatesProtestant 52%, Roman Catholic 24%, Mormon 2%, Jewish 1%, Muslim 1%, none 10% (2002)
UruguayRoman Catholic 66%, Protestant 2%, Jewish 1%
UzbekistanIslam (mostly Sunnis) 88%, Eastern Orthodox 9%
VanuatuPresbyterian 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.
VenezuelaRoman Catholic 96%, Protestant 2%
VietnamBuddhist 9%, Catholic 7%, Hoa Hao 2%, Cao Dai 1%, Protestant, Islam, none 81%
Western Sahara (proposed state)Islam
YemenIslam (including Sunni and Shiite), small numbers of Jewish, Christian, and Hindu
ZambiaChristian 50%–75%, Islam and Hindu 24%–49%, indigenous beliefs 1%
Zimbabwesyncretic (part Christian, part indigenous beliefs) 50%, Christian 25%, indigenous beliefs 24%, Muslim and other 1%

 

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