The country has an area of 43,000 square miles and a population of 3.5 million. According to the 2008 National Population and Housing Census, Christians represent 85.5 percent of the population, Muslims 12.2 percent, adherents of indigenous religious beliefs 0.5 percent, and other religions 0.1 percent, with 1.5 percent claiming no religion. There are also small percentages of Baha'is, Hindus, Sikhs, and Buddhists. Many religious groups incorporate elements of indigenous religious beliefs. Christian groups include Lutheran, Baptist, Episcopal, Presbyterian, Roman Catholic, The Church of Jesus Christ of Latter-day Saints (Mormons), Seventh-day Adventists, Jehovah's Witnesses, United Methodist, African Methodist Episcopal (AME) and AME Zion denominations, and a variety of Pentecostal churches. Many of the churches are affiliated with churches outside the country, while others are independent.
Christians live throughout the country. Muslims belong mainly to the Mandingo and Vai ethnic groups. Mandingos reside throughout the country, while Vais live predominantly in the west. Ethnic groups in all regions participate in the indigenous religious practices of the Poro and Sande secret societies.