This is a list of 57 member states of the Organisation of Islamic Cooperation sorted by their estimated population. It is sourced from the global list of countries by population page, as of June 2019.
Population
| Rank | Country | Total Population (all religions) |
|---|---|---|
| 1 |  Indonesia | 268,074,600 |
| 2 |  Pakistan | 212,742,631 |
| 3 |  Nigeria | 193,392,517 |
| 4 |  Bangladesh | 166,290,000 |
| 5 |  Egypt | 98,467,400 |
| 6 |  Iran | 82,321,600 |
| 7 |  Turkey | 82,003,882 |
| 8 |  Algeria | 43,378,027 |
| 9 |  Sudan | 41,394,625 |
| 10 |  Iraq | 39,127,900 |
| 11 |  Morocco | 34,974,200 |
| 12 |  Uganda | 40,006,700 |
| 13 |  Saudi Arabia | 33,413,660 |
| 14 |  Uzbekistan | 33,412,688 |
| 15 |  Malaysia | 32,666,700 |
| 16 |  Afghanistan | 31,575,018 |
| 17 |  Yemen | 29,579,986 |
| 18 |  Mozambique | 28,861,863 |
| 19 |  Ivory Coast | 25,823,071 |
| 20 |  Cameroon | 24,348,251 |
| 21 |  Niger | 22,314,743 |
| 22 |  Burkina Faso | 20,870,060 |
| 23 |  Mali | 19,973,000 |
| 24 |  Syria | 18,499,181 |
| 25 |  Kazakhstan | 18,446,552 |
| 26 |  Senegal | 16,209,125 |
| 27 |  Chad | 15,692,969 |
| 28 |  Somalia | 15,636,171 |
| 29 |  Guinea | 12,218,357 |
| 30 |  Benin | 11,733,059 |
| 31 |  Tunisia | 11,551,448 |
| 32 |  Jordan | 10,381,500 |
| 33 |  Azerbaijan | 9,981,457 |
| 34 |  United Arab Emirates | 9,682,088 |
| 35 |  Tajikistan | 8,931,000 |
| 36 |  Sierra Leone | 7,901,454 |
| 37 |  Togo | 7,538,000 |
| 38 |  Libya | 6,569,864 |
| 39 |  Kyrgyzstan | 6,389,500 |
| 40 |  Lebanon | 6,065,922 |
| 41 |  Turkmenistan | 5,634,555 |
| 42 |  Palestine | 4,780,978 |
| 43 |  Oman | 4,672,823 |
| 44 |  Kuwait | 4,226,920 |
| 45 |  Mauritania | 4,077,347 |
| 46 |  Albania | 2,862,427 |
| 47 |  Qatar | 2,772,947 |
| 48 |  Gambia | 2,228,075 |
| 49 |  Gabon | 2,109,099 |
| 50 |  Guinea-Bissau | 1,604,528 |
| 51 |  Bahrain | 1,543,300 |
| 52 |  Djibouti | 1,078,373 |
| 53 |  Comoros | 873,724 |
| 54 |  Guyana | 786,508 |
| 55 |  Suriname | 573,085 |
| 56 |  Maldives | 427,756 |
| 57 |  Brunei | 421,300 |
| Total (all religions) | 1,810,399,070 |
Muslim population
8 countries- Benin, Cameroon, Gabon, Guyana, Mozambique, Suriname, Togo and Uganda are not Muslim-majority, but they are members of Organisation of Islamic Cooperation.
| Member state | Percentage Muslim[1] |
|---|---|
| Afghanistan | 99.0% plus |
| Albania | 80.30% |
| Algeria | 97.90% |
| Azerbaijan | 96.90% |
| Bahrain | 70.30% |
| Bangladesh | 89.80% |
| Benin | 23.80% |
| Brunei | 75.10% |
| Burkina Faso | 61.60% |
| Cameroon | 18.30% |
| Chad | 55.30% |
| Comoros | 98.30% |
| Cote d'Ivoire | 37.50% |
| Djibouti | 96.90% |
| Egypt | 94.90% |
| Gabon | 11.20% |
| Gambia | 95.10% |
| Guinea | 84.40% |
| Guinea Bissau | 50.00% |
| Guyana | 6.4% approx. |
| Indonesia | 87.20% |
| Iran | 99.0% plus |
| Iraq | 99.00% |
| Jordan | 97.20% |
| Kazakhstan | 70.40% |
| Kuwait | 74.10% |
| Kyrgyzstan | 88.00% |
| Lebanon | 61.30% |
| Libya | 96.60% |
| Malaysia | 63.70% |
| Maldives | 98.40% |
| Mali | 92.40% |
| Mauritania | 99.0% plus |
| Morocco | 99.0% plus |
| Mozambique | 18.00% |
| Niger | 98.40% |
| Nigeria | 50.40% |
| Oman | 85.90% |
| Pakistan | 96.40% |
| Palestinian territories | 97.60% |
| Qatar | 67.70% |
| Saudi Arabia | 93.00% |
| Senegal | 96.40% |
| Sierra Leone | 78.00% |
| Somalia | 99.0% plus |
| Sudan | 90.70% |
| Suriname | 13.90% |
| Syria | 92.80% |
| Tajikistan | 96.70% |
| Togo | 14.00% |
| Tunisia | 99.0% plus |
| Turkey | 98.00% |
| Turkmenistan | 93.00% |
| Uganda | 11.50% |
| United Arab Emirates | 76.90% |
| Uzbekistan | 96.70% |
| Yemen | 99.0% plus |
See also
- Organisation of Islamic Cooperation
- List of largest cities in Organisation of Islamic Cooperation member countries
- Economy of the Organisation of Islamic Cooperation
- List of Organisation of Islamic Cooperation member states by GDP (PPP)
- List of Organisation of Islamic Cooperation member states by GDP per capita (PPP)
- List of Organisation of Islamic Cooperation member states by exports
- List of Organisation of Islamic Cooperation member states by imports
References
- ^ "Religious Composition by Country" (PDF). Global Religious Landscape. Pew Forum. Archived from the original (PDF) on 9 September 2013. Retrieved 9 July 2013.