Member states of the Organisation of Islamic Cooperation

Member states of the Organisation of Islamic Cooperation
Member states of the OIC in dark green, observer states in light green, suspended states in purple.
Category	Sovereign state
Location	Organisation of Islamic Cooperation
Created	1969
Number	57 members & 5 observer states (as of 2022)
Possible types	Republics (47) Monarchies (10)
Populations	2 billion

The Organisation of Islamic Cooperation founded in 1969 has 57 members, 56 of which are also member states of the United Nations, with 48 countries being Muslim majority countries. Some member countries, especially in West Africa and South America, are – though with large Muslim populations – not necessarily Muslim majority countries. A few countries with significant Muslim populations, such as Russia and Thailand, sit as Observer States.

The collective population of OIC member states is over 2 billion as of 2022.