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 in India, China, Russia, Ethiopia, the Americas, Australia and parts of Europe. The country with the highest proportion of self-described Muslims as a proportion of its total population is Morocco. Converts and immigrant communities are found in almost every part of the world. Over 75–90% of Muslims are Sunni. The second and third largest sects, Shia and Ahmadiyya, make up 10–20%, and 1% respectively. With about 1.8 billion followers (2015), almost a quarter of earth's population, Islam is the second-largest and the fastest-growing religion in the world. due primarily to the young age and high fertility rate of Muslims, with