 The Kaaba, in Mecca, Saudi Arabia, is the center of Islam. Muslims from all over the world gather there to pray in unity. | |
| Total population | |
|---|---|
| about 1.6 billion | |
| Regions with significant populations | |
 Indonesia | about 195 million |
 Pakistan | about 161 million |
 India | about 155 million |
 Bangladesh | about 130 million |
 Turkey | about 73 million |
 Egypt | about 70 million |
 Iran | about 69 million |
| Religions | |
| Islam | |