Section I. Religious Demography
The U.S. government estimates the total population at 16.9 million (July 2020 estimate). According to a 2014-2015 census estimate, 52.1 percent of the population is Muslim, 23.9 percent Protestant, 20 percent Roman Catholic, 0.3 percent animist, 0.2 percent other Christian, 2.8 percent no religion, and 0.7 percent unspecified. Most Muslims adhere to the Sufi Tijaniyah tradition. A small minority hold beliefs associated with Wahhabism, Salafism, or follow the political-religious doctrine espoused by the Muslim Brotherhood. Most Protestants are evangelical Christians. There are small numbers of Baha’is and Jehovah’s Witnesses.
Most northerners practice Islam, and most southerners practice Christianity or indigenous religions. There is a significant Muslim presence in the south but minimal Christian presence in the north. Religious distribution is mixed in urban areas, and indigenous religions are often practiced to some degree along with Islam and Christianity.