which country has the largest catholic population in the world
Catholic Church by country The country where the membership of the church is the largest percentage of the population is Vatican City at 100%, followed by East Timor at 97%.
Islam by country The country with the single largest population of Muslims is Indonesia in Southeast Asia, which on its own hosts 13% of the world's Muslims.[12] Together, the Muslims in the countries of the Malay Archipelago (which includes Brunei, Singapore, Malaysia, Indonesia, the Philippines and East Timor) constitute the world's second or third largest population of Muslims. Here Muslims are majorities in each country other than Singapore, the Philippines, and East Timor.