Muslim-Majority Ethnic Group and Countries.

According to the Pew Research Center in 2010, there were 50 Muslim-majority countries. Around 62% of the world's Muslims live in South and Southeast Asia, with over 1 billion adherents.

The largest ethnic Population of the Muslim Ummah is;

1.     Arabs 20% population of Muslim Ummah.

2.     Bengalis 9.2% population of Muslim Ummah.

3.     Punjabis 6.4% population of Muslim Ummah.

The largest Muslim population in a country is;

1.     Indonesia, 12.7% of the World’s Muslims.

2.     Pakistan 11.0% of the World’s Muslims.

3.     Bangladesh 9.2% of the World’s Muslims.

About 20% of Muslims live in Arab countries.

In the Middle East, the non-Arab countries of Turkey and Iran 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.