Christianity by country to exceed 3 billion. Many charismatic movements are growing in Africa, Latin America, Muslim world, and Asia. Other religions: General: Christianity by country Christianity is the predominant religion in Europe, Russia, North America, South America, the Philippines, East Timor, Southern Africa, Central Africa, East Africa, and Oceania. There are also large Christian communities in other parts of the world, such as Indonesia, Central Asia, and the Middle East, where Christianity is the second-largest religion after Islam. The United States has the largest Christian population in the world, followed by Brazil and Mexico. Christianity in multiple forms is the state religion
Muslim world boundaries of the Muslim world. The Open Doors USA organization, in its 2012 survey of countries around the world that persecute Christians, listed 37 members of the Muslim world amongst the top 50 countries where Christians face the most severe persecution. 9 of the top 10 countries are Islamic-majority states. As the Muslim world came into contact with secular ideals, societies responded in different ways. Some Muslim-majority countries are secular. Azerbaijan became the first secular republic in the Muslim world, between 1918 and 1920, before it was incorporated into the Soviet Union. Turkey has been governed as a secular state