Nigeria is home to a variety of religions which tend to vary regionally. This situation accentuates regional and ethnic distinctions and has often been seen as a source of sectarian conflict amongst the population. Even though, Nigeria is apparently divided equally between Islam and Christianity between north and south, it is evident that across Nigeria there is widespread belief, albeit suppressed for political reasons, in traditional religious practices.
According to a 2003 report, 50.4% of Nigeria's population are Muslims, 48.2% are Christians and 1.4% adhere to other religions. Among Christians, 27.8% are Catholic, 31.5% are Protestant and 40.7% belong to other Christian denominations. The core north is largely Muslim, there are large numbers of both Muslims and Christians in the Middle Belt, including the Federal Capital Territory. In the west of the country, especially in the Yorubaland, the population is said to be evenly divided between Muslims and Christians, while in the southeastern regions are predominantly Christians with widespread traditional beliefs, Catholics, Anglicans, and Methodists are the majority with few traditional beliefs, while the Niger Delta region is mainly Christian.
The majority of Nigerian Muslims are Sunni, but a significant Shia and Sufi minority exists (see Shia in Nigeria) and a small minority of Ahmadiyya. Some northern states have incorporated Sharia law into their previously secular legal systems, which has brought about some controversy. Kano State has sought to incorporate Sharia law into its constitution.
Christian Nigerians are about evenly split between Roman Catholicism and Protestantism. Leading Protestant churches are the Church of Nigeria, of the Anglican communion, Assemblies of God Church, Nigeria, Redeemed Christian Church of God, the Nigerian Baptist Convention and The Synagogue, Church Of All Nations. The Yoruba area contains a large Anglican population, while Igboland is