Islam by country 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. Indian
Muslim world The Organisation of Islamic Cooperation (OIC) is an inter-governmental organization grouping fifty-seven states. 49 are Muslim-majority countries, the others have significant Muslim minorities. The organization claims to be the collective voice of the Muslim world to safeguard the interest and ensure the progress and well-being of their peoples and those of other Muslims in the world over. Muslim world The terms Muslim world and Islamic world commonly refer to the unified Islamic community (Ummah), consisting of all those who adhere to the religion of Islam, or to societies where Islam is practiced. In a modern geopolitical sense, these terms refer