Muslim world are: Saudi Arabia, Pakistan, Afghanistan, Iran, Mauritania, and Yemen. Other states where Islam is the politically defined state religion are: Egypt, Jordan, Iraq, Kuwait, Algeria, Malaysia, Maldives, Morocco, Libya, Tunisia, United Arab Emirates, Somalia and Brunei. Other Muslim-majority countries include: Niger, Indonesia, Sudan, Bosnia and Herzegovina, Sierra Leone, Djibouti, Albania, Azerbaijan, Bangladesh, Burkina Faso, Chad, The Gambia, Guinea, Kazakhstan, Kosovo, Kyrgyzstan, Mali, Northern Cyprus, Nigeria, Senegal, Syria, Lebanon, Tajikistan, Turkmenistan, Turkey and Uzbekistan. More than 24.1% of the world's population is Muslim. Current estimates conclude that the number of Muslims in the world is around 1.8 billion. Muslims are the
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