Population The followers of Islam are called Muslims. Muslims come from all races, nationalities and cultures across the globe. They may be Arabs, Turks, Persians, Indians, Pakistanis, Malaysians, Indonesians, Europeans, Africans, Americans, Chinese, or any other nationality. They also have varied languages, foods, dress, traditions, cultures and customs, yet they all consider themselves Muslim. While there are over one billion Muslims in the world, there are only about 200 million Arabs. Thus Arab Muslims constitute about twenty percent of the Muslim population of the world. It is important to note that not all Arabs are Muslim and not all Muslims are Arab. Twenty percent of all Muslims are found in Sub-Saharan Africa. The most populous Muslim nation is Indonesia. Substantial parts of Asia and almost all the Central Asian republics are Muslim. Significant minorities are found in China, India, Russia, Europe, North America and South America. One out of five people in the world are Muslim. There are approximately five million Muslims in North America. They are most populous in its major cities such as New York, Detroit, Boston, Toledo, Chicago, Los Angeles, San Francisco, Houston, Cedar Rapids (Iowa), Toronto, Montreal, Ottawa, Edmonton, Vancouver, Windsor, Winnipeg, Calgary, and others.