Islam by country - wikipedia Islam by country Part of a series on Islam Beliefs Oneness of God Prophets Revealed books Angels Predestination Day of Resurrection Practices Profession of faith Prayer Fasting Alms - giving Pilgrimage Texts and laws Quran Tafsir Sunnah ( Hadith, Sirah ) Sharia ( law ) Fiqh ( jurisprudence ) Kalam ( dialectic ) History Timeline Muhammad Ahl al - Bayt Sahabah Rashidun Imamate Caliphate Spread of Islam Culture and society Academics Animals Art Calendar Children Demographics Denominations Economics Education Feminism Festivals Finance LGBT Madrasa Moral teachings Mosque Philosophy Poetry Politics Proselytizing Science Social welfare Women Related topics Criticism of Islam Islam and other religions Islamism Islamophobia Glossary Islam portal World Muslim population by percentage A map of Muslim populations by numbers, ( Pew Research Center, 2009 ). Adherents of Islam constitute the world 's second largest religious group. According to a study in 2015, Islam has 1.8 billion adherents, making up about 24 % of the world population. Most Muslims are either of two denominations : Sunni ( 80 - 90 %, roughly 1.5 billion people ) or Shia ( 10 -- 20 %, roughly 170 - 340 million people ). Islam is the dominant religion in the Central Asia, Indonesia, Middle East, South Asia, North Africa, the Sahel and some other parts of Asia. The diverse Asia - Pacific region contains the highest number of Muslims in the world, easily surpassing the Middle East and North Africa. About 31 % of all Muslims are of South Asian origin, therefore South Asia contains the largest population of Muslims in the world. Within this region, however, Muslims are second in numbers to Hindus, as Muslims are a majority in Pakistan and Bangladesh, but not India. The various Hamito - Semitic ( including Arab, Berber ), Turkic, and Iranic countries of the greater Middle East - North Africa ( MENA ) region, where Islam is the dominant religion in all countries other than Israel, hosts 23 % of world Muslims. The country with the single largest population of Muslims is Indonesia in Southeast Asia, which on its own hosts 13 % of the world 's Muslims. Together, the Muslims in the countries of Southeast Asia constitute the world 's third largest population of Muslims. In the countries of the Malay Archipelago Muslims are majorities in each country other than Singapore, the Philippines, and East Timor. About 15 % of Muslims reside in Sub-Saharan Africa, and sizeable Muslim communities are also found in the Americas, the Caucasus, China, Europe, the Philippines and Russia. Western Europe hosts many Muslim immigrant communities where Islam is the second largest religion after Christianity, where it represents 6 % of the total population or 24 million people. Converts and immigrant communities are found in almost every part of the world. Contents 1 Denominations 2 Countries 2.1 Table 2.2 By continent 3 See also 4 References 5 Further reading 6 External links Denominations Organisation of Islamic Cooperation Economy GDP ( PPP ) GDP ( PPP ) per capita Exports Imports Education Member states By population Largest cities Parliamentary Union Main articles : Islamic denominations and History of Islam Historically, Islam was divided into two major religious denominations : Sunni and Shi'a. Of the total Muslim population, 87 - 90 % are Sunni and 10 - 13 % are Shi'a. Most Shi'as ( between 68 % and 80 % ) live in mainly four countries : Iran, Azerbaijan, Bahrain and Iraq. Today, many of the Shia sects are extinct. The major surviving Imamah - Muslim Sects are Usulism ( with nearly more than 10 % ), Nizari Ismailism ( with nearly more than 1 % ) and Alevism ( with slightly more than 0.5 % but less than 1 % ). The other existing groups include Zaydi Shi'a of Yemen whose population is nearly more than 0.5 % of the world 's Muslim population, Musta'li Ismaili ( with nearly 0.1 % whose Taiyabi adherents reside in Sindh and Gujarat in South Asia. There are also significant diaspora populations in Europe, North America, the Far East and East Africa ), and Ibadis from the Kharijites whose population has diminished to a level below 0.15 %. On the other hand, new Muslim sects like the Nation of Islam, Ahmadi Muslims ( with nearly around 1 % ), non-denominational Muslims, Quranist Muslims and Wahhabis ( with nearly around 1 - 2 % of the world 's total Muslim population ) were later independently developed. According to the Pew Research Center in 2010, there were 50 Muslim - majority countries. Around 62 % of the world 's Muslims live in the Asia - Pacific region ( from Turkey to Indonesia ), with over 1 billion adherents. The largest Muslim population in a country is in Indonesia, a nation home to 12.7 % of the world 's Muslims, followed by Pakistan ( 11.0 % ), and India ( 10.9 % ). About 20 % of Muslims live in Arab countries. In the Middle East, the non-Arab countries of Iran and Turkey are the largest Muslim - majority countries ; in Africa, Egypt and Nigeria have the most populous Muslim communities. The study found more Muslims in the United Kingdom than in Lebanon and more in China than in Syria. Countries Most of the percentages of Muslim populations of each country, if not stated otherwise, were taken from the study by the Pew Research Center report of The Future of the Global Muslim Population, as of 27 January 2011. Other studies show variance with Pew figures. The percentage of Muslims in Egypt is given as 93.7 %. However, the figure for Christians in Egypt is usually estimated at 12 - 15 %, but in truth nobody knows since there has been no religious census. Likewise the percentage of Christians in Jordan is usually estimated to be 6 - 7 %. Table Country / Region Muslims Muslim percentage ( % ) of total population Percentage ( % ) of World Muslim population Afghanistan 34,022,437 99.8 1.8 Albania 1,728,209 58.79 0.1 Algeria 40,559,749 98.2 -- 99 2.7 American Samoa < 1,000 < 0.1 < 0.1 Andorra < 1,000 < 0.1 < 0.1 Angola 90,000 1.0 < 0.1 Anguilla < 1,000 0.3 < 0.1 Antigua and Barbuda < 1,000 0.6 < 0.1 Argentina 784,000 2.5 < 0.1 Armenia < 1,000 < 0.1 < 0.1 Aruba < 1,000 0.4 < 0.1 Australia 604,000 2.6 < 0.1 Austria 700,000 8 < 0.1 Azerbaijan 9,872,765 96.9 0.5 Bahamas < 1,000 0.1 < 0.1 Bahrain 866,888 - 991,892 70.2 < 0.1 Bangladesh 148,607,000 90.4 9.2 Barbados 2,000 0.9 < 0.1 Belarus 19,000 0.2 < 0.1 Belgium 658,463 5.9 < 0.1 Belize < 1,000 0.1 < 0.1 Benin 2,710,000 24.5 0.1 Bermuda < 1,000 0.8 < 0.1 Bhutan ≤ 2,000 0.2 < 0.1 Bolivia 2,000 < 0.1 < 0.1 Bosnia - Herzegovina 1,955,084 50.7 0.1 Botswana 8,000 0.4 < 0.1 Brazil 400,000 - 1,500,000 0.1 < 0.1 British Virgin Islands < 1,000 < 0.1 Brunei 295,000 67 < 0.1 Bulgaria 577,000 7.8 < 0.1 Burkina Faso 11,270,000 60.5 0.6 Burma ( Myanmar ) 2,237,495 2.3 0.1 Burundi 277,480 2.5 < 0.1 Cambodia 303,187 1.9 < 0.1 Cameroon 4,940,000 20.9 0.2 Canada 1,053,945 3.2 0.1 Cape Verde 10,000 < 0.1 Cayman Islands < 1,000 0.2 < 0.1 Central African Republic 403,000 15 < 0.1 Chad 7,827,653 58 0.4 Chile 2,894 < 0.1 < 0.1 China 24,690,000 - 50,000,000 1.8 - 3.6 1.4 - 2.8 Cocos ( Keeling ) Islands < 1,000 80 < 0.1 Colombia 40,000 - 80,000 0.2 < 0.1 The Comoros 791,918 98.3 < 0.1 Congo 8,330,115 5 0.1 Cook Islands < 1,000 < 0.1 < 0.1 Costa Rica < 1,000 < 0.1 < 0.1 Côte d'Ivoire 10,375,283 40 0.5 Croatia 60,000 1.4 < 0.1 Cuba 10,000 0.1 < 0.1 Cyprus 273,000 22.7 < 0.1 Czech Republic 10,500 0.1 < 0.1 Denmark 230,000 4.1 < 0.1 Djibouti 853,000 97.0 0.1 Dominica < 1,000 0.2 < 0.1 Dominican Republic 2,000 < 0.1 < 0.1 Ecuador 145 < 0.1 < 0.1 Egypt 87,336,965 90 4.9 El Salvador 2,000 < 0.1 < 0.1 Equatorial Guinea 28,000 4.1 < 0.1 Eritrea 1,909,000 36.6 - 48 / 50 0.1 Estonia 1,508 < 0.1 < 0.1 Ethiopia 28,680,000 - 35,713,657 34 1.8 Faroe Islands < 1,000 < 0.1 < 0.1 Falkland Islands < 1,000 < 0.1 < 0.1 Federated States of Micronesia < 1,000 < 0.1 < 0.1 Fiji 54,000 6.3 < 0.1 Finland 150,000 2.8 < 0.1 France 4,697,431 - 6,039,554 7.5 0.3 French Guiana 2,000 0.9 < 0.1 French Polynesia < 1,000 < 0.1 < 0.1 Gabon 145,000 9.7 < 0.1 Gambia 2,080,240 95.3 0.1 Georgia 442,000 10.5 < 0.1 Germany 3,551,802 - 4,700,000 4.4 - 5.8 0.2 Ghana 4,914,000 18 0.2 Gibraltar 1,000 4.0 < 0.1 Greece 610,000 5.3 < 0.1 Greenland < 1,000 < 0.1 < 0.1 Grenada < 1,000 0.3 < 0.1 Guadeloupe 2,000 0.4 < 0.1 Guam < 1,000 < 0.1 < 0.1 Guatemala 1,000 < 0.1 < 0.1 Guinea 8,693,000 84.2 0.5 Guinea Bissau 705,000 - 808,344 45 < 0.1 Guyana 55,000 7.2 < 0.1 Haiti 2,000 < 0.1 < 0.1 Honduras 11,000 0.1 < 0.1 Hong Kong 220,000 3.1 < 0.1 Hungary 5,579 0.3 < 0.1 Iceland 770 0.2 < 0.1 India 189,000,000 14.2 10.9 Indonesia 227,226,404 87.2 12.7 Iran 81,529,435 99.7 4.6 Iraq 38,800,190 99 1.9 Ireland 70,158 1.3 < 0.1 Isle of Man < 1,000 0.2 < 0.1 Israel 1,460,748 17.7 0.1 Italy 1,400,000 2.3 0.1 Jamaica 1,000 < 0.1 < 0.1 Japan 185,000 0.1 < 0.1 Jordan 9,961,123 93.8 0.4 Kazakhstan 13,026,802 70.2 ( official census ) 0.5 Kenya 2,868,000 - 5,332,963 10 0.2 Kiribati < 1,000 < 0.1 < 0.1 Kosovo 1,811,859 95.6 0.1 Kuwait 2,636,000 74.1 0.2 Kyrgyzstan 4,927,000 88.8 0.3 Laos 1,000 < 0.1 < 0.1 Latvia 2,000 0.1 < 0.1 Lebanon 3,364,089 59.7 0.2 Lesotho 1,000 < 0.1 < 0.1 Liberia 523,000 12.8 < 0.1 Libya 6,325,000 96.6 0.4 Liechtenstein 2,000 4.8 < 0.1 Lithuania 3,000 0.1 < 0.1 Luxembourg 10,000 - 15,000 2.3 < 0.1 Macau < 1,000 < 0.1 < 0.1 Macedonia 500,000 33.3 < 0.1 Madagascar 220,000 7 < 0.1 Malawi 2,399,531 12.8 0.1 Malaysia 19,237,161 61.4 1.1 Maldives 309,000 100 < 0.1 Mali 15,667,704 95 0.8 Malta 1,000 0.2 < 0.1 Marshall Islands < 1,000 < 0.1 < 0.1 Martinique < 1,000 0.2 < 0.1 Mauritania 4,171,633 100 0.2 Mauritius 230,118 17.3 < 0.1 Mayotte 197,000 98.8 < 0.1 Mexico 3,700 - 111,000 0.1 < 0.1 Moldova 15,000 0.4 < 0.1 Monaco < 1,000 0.5 < 0.1 Mongolia 200,000 6 < 0.1 Montenegro 118,477 19.11 < 0.1 Montserrat < 1,000 0.1 < 0.1 Morocco 33,646,788 99 2.0 Mozambique 5,340,000 22.8 0.3 Namibia 9,000 0.4 < 0.1 Nauru < 1,000 < 0.1 < 0.1 Nepal 1,292,909 4.2 0.1 Netherlands 825,000 - 1,000,000 5 - 6 0.1 Netherlands Antilles < 1,000 0.2 < 0.1 New Caledonia 7,000 2.8 < 0.1 New Zealand 41,000 0.9 < 0.1 Nicaragua 1,000 < 0.1 < 0.1 Niger 19,502,214 98.3 1.0 Nigeria 95,316,131 41 - 50 5.3 Niue < 1,000 < 0.1 < 0.1 North Korea 3,000 0.1 < 0.1 Northern Mariana Islands < 1,000 0.7 < 0.1 Norway 100,000 - 185,000 2 - 4 ( 2016 Dec. ) < 0.1 Oman 2,427,000 85.9 0.2 Pakistan 204,194,370 96.4 11.0 Palau < 1,000 < 0.1 < 0.1 Palestinian Territories 4,298,000 97.5 0.3 Panama 25,000 0.7 < 0.1 Papua New Guinea 2,000 < 0.1 < 0.1 Paraguay 1,000 < 0.1 < 0.1 Peru < 1,000 < 0.1 < 0.1 Philippines 5,127,084 - 10,700,000 5 - 11 0.3 - 0.6 Poland 20,000 0.1 < 0.1 Portugal 65,000 0.6 < 0.1 Puerto Rico 1,000 < 0.1 < 0.1 Qatar 1,566,786 77.5 0.1 Republic of Congo 77,736 1.6 < 0.1 Reunion 35,000 4.2 < 0.1 Romania 73,000 0.3 < 0.1 Russia 9,400,000 - 20,000,000 6.5 - 15 1.0 Rwanda 589,429 4.8 < 0.1 St. Helena < 1,000 < 0.1 < 0.1 St. Kitts and Nevis < 1,000 0.3 < 0.1 St. Lucia < 1,000 0.1 < 0.1 St. Pierre and Miquelon < 1,000 0.2 < 0.1 St. Vincent and the Grenadines 2,000 1.7 < 0.1 Samoa < 1,000 < 0.1 < 0.1 San Marino < 1,000 < 0.1 < 0.1 São Tomé and Príncipe < 1,000 < 0.1 < 0.1 Saudi Arabia 31,878,000 97.1 1.6 Senegal 14,584,931 95.9 0.8 Serbia 221,460 3.1 < 0.1 Seychelles < 1,000 1.1 < 0.1 Sierra Leone 4,171,000 71.5 0.3 Singapore 721,000 - 842,116 14.7 < 0.1 Slovakia 10,866 0.2 < 0.1 Slovenia 73,568 3.6 < 0.1 Solomon Islands < 1,000 < 0.1 < 0.1 Somalia 14,231,000 98.9 0.6 South Africa 1,050,000 1.9 < 0.1 South Korea 35,000 0.1 < 0.1 South Sudan 610,000 6.2 < 0.1 Spain 1,887,906 4.1 0.1 Sri Lanka 1,967,227 - 2,173,710 9.71 0.1 Sudan 39,027,950 97.0 1.9 Suriname 84,000 19.6 < 0.1 Swaziland 129,230 10 < 0.1 Sweden 800,000 8.1 < 0.1 Switzerland 400,000 5 < 0.1 Syria 18,930,000 82.9 1.0 Taiwan 60,000 0.3 < 0.1 Tajikistan 7,621,700 96.7 0.4 Tanzania 19,426,814 35 0.8 Thailand 3,952,000 5.8 0.2 Timor - Leste 1,000 0.1 < 0.1 Togo 1,593,011 20 0.1 Tokelau < 1,000 < 0.1 < 0.1 Tonga < 1,000 < 0.1 < 0.1 Trinidad and Tobago 78,000 5.8 < 0.1 Tunisia 11,190,000 99.8 0.6 Turkey 80,683,525 98.6 4.6 Turkmenistan 4,830,000 93.3 0.3 Turks and Caicos Islands < 1,000 < 0.1 < 0.1 Tuvalu < 1,000 0.1 < 0.1 Uganda 5,030,000 12.0 0.3 Ukraine 393,000 0.9 < 0.1 United Arab Emirates 4,615,081 76 0.2 United Kingdom 3,106,368 4.8 0.2 United States 3,450,000 1.1 0.2 U.S. Virgin Islands < 1,000 0.1 < 0.1 Uruguay < 1,000 < 0.1 < 0.1 Uzbekistan 26,550,000 96.5 1.7 Vanuatu < 1,000 < 0.1 < 0.1 Vatican City 0 0 0 Venezuela 95,000 0.3 < 0.1 Vietnam 96,160 0.2 < 0.1 Wallis and Futuna < 1,000 < 0.1 < 0.1 Western Sahara 528,000 99.6 < 0.1 Yemen 27,784,498 99.0 1.5 Zambia 140,000 < 0.1 Zimbabwe 488,656 < 0.1 By continent Region Muslims Muslim percentage ( % ) of total population Percentage ( % ) of World Muslim population Zh ! Asia 1,200,000,000 24.3 66.7 Zh ! Central Asia 54,000,000 81 3.0 Zi ! South Asia 600,000,000 31.4 30.6 Zj ! Southeast Asia 240,000,000 40.0 13.3 Zj ! East Asia 50,000,000 - 50,713,702 3.1 2.8 Zk ! Middle East - North Africa 315,322,000 - 488,603,838 91.2 27.1 Zh ! Africa 550,000,000 47 30.6 Zl ! Sub-Saharan Africa 283,302,393 29.6 15.7 Zh ! North America 3,500,000 - 7,000,000 1.0 0.4 Zh ! South America 791,000 0.2 0.04 Zm ! Europe 44,138,000 6.0 2.7 Zh ! Oceania 650,000 1.6 0.04 Zo ! World 1,800,000,000 24.1 100.0 See also Islam by country Islam in Africa Algeria Angola Benin Botswana Burkina Faso Burundi Cameroon Cape Verde Central African Republic Chad Comoros Democratic Republic of the Congo Republic of the Congo Ivory Coast Djibouti Egypt Equatorial Guinea Eritrea Ethiopia Gabon The Gambia Ghana Guinea Guinea - Bissau Kenya Lesotho Liberia Libya Madagascar Malawi Mali Mauritania Mauritius Morocco Mozambique Namibia Niger Nigeria Rwanda São Tomé and Príncipe Senegal Seychelles Sierra Leone Somalia South Africa South Sudan Sudan Swaziland Tanzania Togo Tunisia Uganda Western Sahara Zambia Zimbabwe Islam in Asia Afghanistan Armenia Bahrain Bangladesh Bhutan Brunei Burma Cambodia Central Asia China Hong Kong Macau Tibet East Timor Georgia India Indonesia Iran Iraq Israel Japan Jordan Kazakhstan Korea Kyrgyzstan Kuwait Laos Lebanon Maldives Malaysia Mongolia Nepal Oman Pakistan Palestine Philippines Qatar Saudi Arabia Singapore South Asia Southeast Asia Sri Lanka Syria Taiwan Tajikistan Thailand Turkmenistan UAE Uzbekistan Vietnam Yemen Islam in Europe Albania Andorra Austria Azerbaijan Belarus Belgium Bosnia and Herzegovina Bulgaria Croatia Cyprus Czech Republic Denmark Estonia Finland France Georgia Germany Greece Hungary Iceland Ireland Italy Kosovo Latvia Liechtenstein Lithuania Macedonia Luxembourg Malta Moldova Montenegro Netherlands Norway Poland Portugal Romania Russia Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey Ukraine United Kingdom England Northern Ireland Scotland Wales USSR Islam in the Americas Antigua & Barbuda Argentina Bahamas Barbados Belize Bolivia Brazil Canada Chile Colombia Costa Rica Cuba Dominica Dominican Republic Ecuador El Salvador French Guiana Grenada Guatemala Guyana Haiti Honduras Jamaica Mexico Nicaragua Panama Paraguay Peru St. Kitts & Nevis St. Lucia St. Vincent & the Grenadines Suriname Trinidad & Tobago United States Uruguay Venezuela Islam in Oceania Australia Cocos ( Keeling ) Islands Federated States of Micronesia Fiji Guam Kiribati Marshall Islands Nauru New Caledonia New Zealand Northern Mariana Islands Palau Papua New Guinea Samoa Solomon Islands Tonga Tuvalu Vanuatu Islam portal Islam : Muslim world Muslim population growth Shia Muslims in the Arab world Ahmadiyya by country Other religions by country : Ahmadiyya Buddhism Christianity Hinduism Judaism No Faith Sikhism General List of religious populations References ^ `` Why Muslims are the world 's fastest - growing religious group ''. Pew Research Centre. April 2017. Retrieved 24 April 2017. `` Shi - ite ''. Encyclopædia Britannica Online. Retrieved 26 August 2010. They numbered about 900 million in the late 20th century and constituted nine - tenths of all the adherents of Islām. Islamic Beliefs, Practices, and Cultures. Marshall Cavendish. 2010. p. 352. ISBN 0 - 7614 - 7926 - 0. Retrieved 19 December 2011. Within the Muslim community, the percentage of Sunnis is generally thought to be between 70 and 80 percent, with the Shia accounting for 10 to 20 percent, although most sources estimate their numbers at 20 percent. A common compromise figure ranks Sunnis at 70 % and Shias at 20 % percent. `` Mapping the Global Muslim Population : A Report on the Size and Distribution of the World 's Muslim Population ''. Pew Research Center. 7 October 2009. Retrieved 24 September 2013. Of the total Muslim population, 10 - 20 % are Shia Muslims and 70 - 80 % are Sunni Muslims. `` Quick guide : Sunnis and Shias ''. BBC News. 6 December 2011. Retrieved 18 December 2011. The great majority of Muslims are Sunnis - estimates suggest the figure is somewhere between 69 % and 89 %. Sunni Islam : Oxford Bibliographies Online Research Guide `` Sunni Islam is the dominant division of the global Muslim community, and throughout history it has made up a substantial majority ( 70 to 80percent ) of that community. '' `` Sunni and Shia Islam ''. Library of Congress Country Studies. Retrieved 17 December 2011. Sunni constitute 85 percent of the world 's Muslims. `` Sunni ''. Berkley Center for Religion, Peace, and World Affairs. Retrieved 20 December 2012. Sunni Islam is the largest denomination of Islam, comprising about 85 % of the world 's over 1.5 billion Muslims. `` Tension between Sunnis, Shiites emerging in USA ''. USA Today. 24 September 2007. Retrieved 24 September 2013. Among the world 's estimated 1.4 billion Muslims, about 85 % are Sunni and about 15 % are Shiite. Inside Muslim minds `` around 80 % are Sunni '' Who Gets To Narrate the World `` The Sunnis ( approximately 80 % ) '' A world theology N. Ross Reat `` 80 % being the Sunni '' Islam and the Kadiyani jama'at `` The Sunni segment, accounting for at least 80 % of the worlds Muslim population '' Eastern Europe Russia and Central Asia `` some 80 % of the worlds Muslims are Sunni '' A dictionary of modern politics `` probably 80 % of the worlds Muslims are Sunni '' `` Religions ''. The World Factbook. Central Intelligence Agency. Retrieved 25 August 2010. Sunni Islam accounts for over 75 % of the world 's Muslim population... ^ See `` Shīʿite ''. Encyclopædia Britannica Online. Retrieved 25 August 2010. Shīʿites have come to account for roughly one - tenth of the Muslim population worldwide. `` Mapping the Global Muslim Population : A Report on the Size and Distribution of the World 's Muslim Population ''. Pew Research Center. 7 October 2009. Retrieved 24 September 2013. The Pew Forum 's estimate of the Shia population ( 10 - 13 % ) is in keeping with previous estimates, which generally have been in the range of 10 - 15 %. Some previous estimates, however, have placed the number of Shias at nearly 20 % of the world 's Muslim population. `` Shia ''. Berkley Center for Religion, Peace, and World Affairs. Retrieved 5 December 2011. Shi'a Islam is the second largest branch of the tradition, with up to 200 million followers who comprise around 15 % of all Muslims worldwide... `` Religions ''. The World Factbook. Central Intelligence Agency. Retrieved 25 August 2010. Shia Islam represents 10 - 20 % of Muslims worldwide... Iran, Israel and the United States `` The majority of the world 's Islamic population, which is Sunni, accounts for over 75 % of the Islamic population ; the other 10 - 20 percent is Shia. '' ( reference : CIA ) Sue Hellett ; U.S. should focus on sanctions against Iran Archived 17 March 2012 at the Wayback Machine. `` Let me review, while Shia Islam makes up only 10 - 20 percent of the world 's Muslim population, Iraq has a Shia majority ( between 60 - 80 percent ), but had a Sunni controlled government under Saddam Hussein and cronies from 1958 - 2003... ( If you like government figures, see the CIA World Factbook. ) '' ^ `` Muslim Population by Country ''. The Future of the Global Muslim Population. Pew Research Center. Archived from the original on 9 February 2011. Retrieved 22 December 2011. ^ `` Region : Middle East - North Africa ''. The Future of the Global Muslim Population. Pew Research Center. Retrieved 22 December 2011. ^ `` Region : Sub-Saharan Africa ''. The Future of the Global Muslim Population. Pew Research Center. Retrieved 22 December 2011. ^ Encyclopædia Britannica. Britannica Book of the Year 2003. Encyclopædia Britannica, ( 2003 ) ISBN 978 - 0 - 85229 - 956 - 2 p. 306 According to the Encyclopædia Britannica, as of mid-2002, there were 376,453,000 Christians, 329,869,000 Muslims and 98,734,000 people who practiced traditional religions in Africa. Ian S. Markham, ( A World Religions Reader. Cambridge, MA : Blackwell Publishers, 1996. ) is cited by Morehouse University as giving the mid-1990s figure of 278,250,800 Muslims in Africa, but still as 40.8 % of the total population. These numbers are estimates, and remain a matter of conjecture. See Amadu Jacky Kaba. The spread of Christianity and Islam in Africa : a survey and analysis of the numbers and percentages of Christians, Muslims and those who practice indigenous religions. The Western Journal of Black Studies, Vol 29, Number 2, June 2005. Discusses the estimations of various almanacs and encyclopedium, placing Britannica 's estimate as the most agreed figure. Notes the figure presented at the World Christian Encyclopedia, summarized here, as being an outlier. On rates of growth, Islam and Pentecostal Christianity are highest, see : The List : The World 's Fastest - Growing Religions, Foreign Policy, May 2007. ^ Britannica Archived 14 December 2008 at the Wayback Machine., Think Quest Archived 18 June 2013 at the Wayback Machine., Wadsworth.com ^ `` Muslims ''. Pew Research Center 's Religion & Public Life Project. 2012 - 12 - 18. Retrieved 2016 - 10 - 13. ^ Pechilis, Karen ; Raj, Selva J. ( 2013 - 01 - 01 ). South Asian Religions : Tradition and Today. Routledge. ISBN 9780415448512. ^ `` 10 Countries With the Largest Muslim Populations, 2010 and 2050 ''. Pew Research Center 's Religion & Public Life Project. 2015 - 04 - 02. Retrieved 2017 - 02 - 07. ^ Diplomat, Akhilesh Pillalamarri, The. `` How South Asia Will Save Global Islam ''. The Diplomat. Retrieved 2017 - 02 - 07. ^ `` Middle East - North Africa Overview ''. 7 October 2009. ^ Miller ( 2009, pp. 8, 17 ) ^ Miller ( 2009 ) ^ Encyclopædia Britannica. Britannica Book of the Year 2003. Encyclopædia Britannica, ( 2003 ) ISBN 978 - 0 - 85229 - 956 - 2 p. 306 According to the Encyclopædia Britannica, as of mid-2002, there were 376,453,000 Christians, 329,869,000 Muslims and 98,734,000 people who practiced traditional religions in Africa. Ian S. Markham, ( A World Religions Reader. Cambridge, MA : Blackwell Publishers, 1996. ) is cited by Morehouse University as giving the mid-1990s figure of 278,250,800 Muslims in Africa, but still as 40.8 % of the total population. These numbers are estimates, and remain a matter of conjecture. See Amadu Jacky Kaba. The spread of Christianity and Islam in Africa : a survey and analysis of the numbers and percentages of Christians, Muslims and those who practice indigenous religions. 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Retrieved 10 December 2014. ^ According to David Shankland, 15 % of Turkey 's population. in Structure and Function in Turkish Society. Isis Press, 2006, p. 81. ^ According to Krisztina Kehl - Bodrogi, Syncretistic Religious Communities in the Near East edited by her, B. Kellner - Heinkele, & A. Otter - Beaujean. Leiden : Brill, 1997. ^ `` Tehelka - India 's Independent Weekly News Magazine ''. ^ Paul, Eva ( 2006 ). Die Dawoodi Bohras -- eine indische Gemeinschaft in Ostafrika ( PDF ). Beiträge zur 1. Kölner Afrikawissenschaftlichen Nachwuchstagung. ^ Simon Ross Valentine ( 6 October 2008 ). Islam and the Ahmadiyya Jamaʻat : History, Belief, Practice. Columbia University Press. p. 61. ISBN 978 - 0 - 231 - 70094 - 8. ^ Larry DeVries ; Don Baker ; Dan Overmyer. Asian Religions in British Columbia. University of Columbia Press. ISBN 978 - 0 - 7748 - 1662 - 5. Retrieved 29 March 2014. 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Question: where does islam rank in size on the list of the world’s religions
Answer: second largest