The country has an area of 183,568 square miles and a population of 18.1 million. Approximately 40 percent of the population is Christian, and 20 percent Muslim. The remaining 40 percent practices indigenous religious beliefs. The Christian population is divided between Roman Catholics (27 percent of the total population) and Protestants (13 percent). The largest Protestant groups are Presbyterians and evangelicals, while Jehovah's Witnesses and Pentecostals represent fewer than 2 percent of Protestants. There is also a small community of Baha'is.
Muslims and Christians are found in every region, with Christians concentrated primarily in the southern and western regions. Large cities have significant populations of both groups. The two Anglophone provinces of the western region are largely Protestant, and the Francophone regions of the southern and western regions are mostly Catholic. In the northern regions, the locally dominant Fulani (or Peuhl) ethnic group is mainly Muslim, but the overall population is fairly evenly divided among Muslims, Christians, and followers of indigenous religious beliefs. The Bamoun ethnic group of the West Region is mostly Muslim. Indigenous religious beliefs are practiced in rural areas throughout the country but are rarely practiced publicly in cities, in part because many of these beliefs are intrinsically local in character.