19. The Muslim World
The Muslim population of the world is around 1.5 billion. 30% of Muslims live in the Indian subcontinent, 20% in Sub-Saharan Africa, 17% in Southeast Asia, 18% in the Arab World, 10% in the Soviet Union and China. Turkey, Iran and Afghanistan comprise 10% of the non-Arab Middle East. Although there are Muslim minorities in almost every area, including Latin America, Europe and Australia, they are most numerous in the Soviet Union, India, and central Africa. There are over 5 million Muslims in the United States.