Member states of the Organisation of Islamic Cooperation
| Member states of the Organisation of Islamic Cooperation | |
|---|---|
| Category | Sovereign state |
| Location | Organisation of Islamic Cooperation |
| Created |
|
| Number | 57 members (49 Muslim majority and 8 Christian majority) 5 observer states (3 non-Muslim majority and 2 Muslim majority) Several non-Muslim member/observer candidates (as of 2025) |
| Possible types |
|
| Populations | 2.04 billion |
Among the 57 member countries of the Organisation of Islamic Cooperation (OIC), 49 states are denoted Muslim-majority countries, although two of which—Guinea-Bissau and Cote d'Ivoire—have less than 50% Muslim population. Outside of the Islamic world, eight more countries—Cameroon, Benin, Mozambique, Togo, Uganda, Suriname, Gabon, and Guyana—comprise the 57 full members of the OIC while also being Christian-majority countries
The collective population of OIC member states is over 2.04 billion as of 2025.