Section I. Religious Demography
The U.S. government estimates the total population at 208.7 million (midyear 2019 estimate). While there are no official indicators of religious affiliation in the country, most analysts say it is roughly evenly divided between Muslims and Christians, while approximately 2 percent belong to other or no religious groups. Many individuals syncretize indigenous animism with Islam or Christianity.
A 2010 Pew report found 38 percent of the Muslim population self-identifies as Sunni, the vast majority of whom belong to the Maliki school of jurisprudence, though a sizable minority follows Shafi’i fiqh. The same study found 12 percent of Muslims in the country self-identify as Shia, with the remainder declining to answer or identifying as “something else” (5 percent) or “just a Muslim” (42 percent). Included among the Sunnis are several Sufi brotherhoods, including Tijaniyah, Qadiriyyah, and Mouride. There are also Izala (Salafist) minorities and small numbers of Ahmadi and Kalo Kato (Quraniyoon) Muslims. A 2011 Pew report found among Christians, roughly one quarter are Roman Catholic and three quarters Protestant, with small numbers of Orthodox or other Christian denominations. Among Protestant groups, the Anglican, Baptist, and Presbyterian churches maintain the largest populations, while evangelicals, Pentecostals, Anabaptists (EYN Church of the Brethren), Methodists, Seventh-day Adventists, New Apostolics, The Church of Jesus Christ of Latter-day Saints, and Jehovah’s Witnesses report tens of thousands of adherents each. Other communities include Baha’is, Jews (including significant numbers of Judaic-oriented groups), Hindus, Sikhs, Buddhists, animists, and individuals who do not follow any religion.
The Hausa, Fulani, and Kanuri ethnic groups are most prevalent in the predominantly Muslim North West and North East states. Significant numbers of Christians, including some Hausa, Fulani, and Kanuri, also reside in the North East and North West. Christians and Muslims reside in approximately equal numbers in the North Central and South West states, including Lagos, where the Yoruba ethnic group – whose members include both Muslims and Christians – predominates. In the South East and South states, where the Igbo ethnic group is dominant, Christian groups, including Catholics, Anglicans, and Methodists, constitute the majority. In the Niger Delta region, where ethnic groups include Ijaw, Igbo, Ogoni, Efik, Ibibio, and Uhrobo among others, Christians form a substantial majority; a small but growing minority of the population is Muslim. Evangelical Christian denominations are growing rapidly in the North Central and South East, South, and South West regions. Ahmadi Muslims maintain a small presence in several cities, including Lagos and Abuja. The Shia Muslim presence is heavily concentrated in the North West states of Kaduna, Katsina, Sokoto, Zamfara, and Kano.