Administrative divisions of Nigeria
Nigeria is divided into 37 first-level administrative divisions:
Largest cities in Nigeria
| # | City | Population |
|---|---|---|
| 1 | Lagos | 9,466,000 |
| 2 | Kano | 3,140,000 |
| 3 | Ibadan | 2,628,000 |
| 4 | AbujaCapital | 1,576,000 |
| 5 | Kaduna | 1,442,000 |
| 6 | Benin City | 1,190,000 |
| 7 | Ikare | 1,099,931 |
| 8 | Port Harcourt | 1,020,000 |
| 9 | Ogbomosho | 951,000 |
| 10 | Aba | 897,560 |
Lagos is the largest urban area in Nigeria with about 9,466,000 people; the capital, Abuja, has about 1,576,000.
Terrain, rivers & lakes
Highest terrain in Nigeria: ≈ 2,425 m — read from the global elevation model, so summit heights are approximate. The physical map paints elevation bands from green lowlands to brown highlands.
🌊 Rivers
- Ogun
- Bénoué
- Benue
- Chari
- Kaduna
- Sokoto
- Mariga
- Niger
- Bunga
- Gongola
- Komadugu Yobe
- Hadejia
🏞️ Lakes
- Kainji Reservoir
Ethnic groups in Nigeria
Hausa 30%, Yoruba 15.5%, Igbo (Ibo) 15.2%, Fulani 6%, Tiv 2.4%, Kanuri/Beriberi 2.4%, Ibibio 1.8%, Ijaw/Izon 1.8%, other 24.9% (2018 est.)
Regionally, Hausa is the most common ethnic group across most of the 37 divisions, while Yoruba predominates in 7 divisions (Kwara, Ogun, Oyo, Lagos, Osun, Ondo, …); Igbo predominates in 5 divisions (Abia, Ebonyi, Anambra, Enugu, Imo); Kanuri/Beriberi predominates in 2 divisions (Borno, Yobe); Fulani predominates in 2 divisions (Adamawa, Gombe).
Source: CIA World Factbook (2018 est.) · regional dominance compiled by Glostats from censuses and surveys
Religions in Nigeria
Muslim 53.5%, Roman Catholic 10.6%, other Christian 35.3%, other 0.6% (2018 est.)
Regionally, Muslim is the most common religious group across most of the 37 divisions, while other Christian predominates in 16 divisions (Ogun, Lagos, Ondo, Ekiti, Benue, Plateau, …); Roman Catholic predominates in 4 divisions (Anambra, Enugu, Imo, Ebonyi).
Source: CIA World Factbook (2018 est.) · regional dominance compiled by Glostats from censuses and surveys
Languages in Nigeria
English (official), Hausa, Yoruba, Igbo (Ibo), Fulani, over 500 additional indigenous languages
Regionally, Hausa is the most common language group across most of the 37 divisions, while Yoruba predominates in 7 divisions (Kwara, Ogun, Oyo, Lagos, Osun, Ondo, …); Igbo (Ibo) predominates in 5 divisions (Abia, Ebonyi, Anambra, Enugu, Imo); Kanuri predominates in 2 divisions (Borno, Yobe); Ijaw predominates in 2 divisions (Bayelsa, Rivers).
Source: CIA World Factbook · regional dominance compiled by Glostats from censuses and surveys
Explore more
Sources: boundaries, cities, rivers and lakes from Natural Earth (public domain, 1:10m); elevation from the AWS Open Data terrain tiles (SRTM/GMTED); ethnic, religious and language shares from the CIA World Factbook; regional dominance compiled by Glostats from national censuses and surveys. Page generated 2026-10-19. More about our data.