Nigeria has a population of approximately 219 million people, making it the sixth-most populous country in the world. Nigeria is a religiously diverse country, with Islam and Christianity being the most widely practiced religions. It is estimated that 53.5 percent of Nigerians identify as Muslim (of which majority adhere to the Sunni branch of Islam), 45.9 percent are Christian (10.6 percent Roman Catholic and 35.3 percent other Christian), and the remaining 0.6 percent practice other indigenous religions.