The largest city in Nigeria is Lagos, with around 15.4 million residents, followed by Kano (4.1 million), Ibadan (3.6 million), and the capital Abuja (3.5 million). Nigeria is Africa's most populous nation, home to roughly 213 million people, and its booming metropolises rank among the fastest-growing urban centres on the planet.
The Ten Largest Nigerian Cities
Ranked by metropolitan population, these are the ten biggest cities across Nigeria's 36 states and federal capital territory:
- Lagos — approximately 15.4 million
- Kano — approximately 4.1 million
- Ibadan — approximately 3.6 million
- Abuja — approximately 3.5 million
- Port Harcourt — approximately 2.3 million
- Benin City — approximately 1.8 million
- Kaduna — approximately 1.6 million
- Maiduguri — approximately 1.1 million
- Zaria — approximately 1.0 million
- Aba — approximately 0.9 million
Together these ten cities concentrate a large slice of Nigeria's urban population, and the gap between number one and the rest is striking: Lagos alone holds more people than the next three cities combined.
Lagos: A Megacity in a League of Its Own
Lagos dwarfs every other Nigerian city. Built across the mainland and a cluster of islands and lagoons on the Atlantic coast, it is the country's commercial engine, generating a vast share of national economic output through finance, shipping, entertainment (the famed "Nollywood" film industry), and technology start-ups. Though it lost its status as national capital to Abuja in 1991, Lagos remains the place most Nigerians associate with opportunity. Demographers expect it to keep swelling for decades, with some long-range projections suggesting it could become one of the world's most populous cities by the end of the century. Its sheer density, traffic, and energy make it the beating heart of West Africa.
The Historic Northern and Western Powerhouses
Beyond Lagos, Nigeria's largest cities reflect the country's deep history and regional diversity. Kano, in the north, is the second-largest city and one of the oldest continuously inhabited urban centres in Africa, a centre of trade for more than a thousand years thanks to its position on trans-Saharan caravan routes. Ibadan, in the south-west, was once among the largest cities in sub-Saharan Africa and remains a major Yoruba cultural and academic hub, home to Nigeria's oldest university. Kaduna and Zaria, also in the north, are important administrative, military, and educational centres, while Maiduguri anchors the country's far north-east.
Abuja, the Planned Capital
Abuja is unusual among the giants because it was purpose-built. Located in the geographic centre of the country, it was developed from the 1980s and formally became the capital in 1991, replacing Lagos. The central location was deliberate — a neutral ground meant to balance Nigeria's diverse ethnic and religious regions and ease congestion in Lagos. With wide boulevards, government complexes, and the dramatic backdrop of Aso Rock, Abuja has grown rapidly into one of the country's largest cities and continues to attract migrants drawn by government and service-sector jobs. To learn more about the nation as a whole, see our nigeria country guide.
Industry, Oil, and the Southern Cities
Several of the top cities owe their size to commerce and resources. Port Harcourt, in the Niger Delta, is the centre of Nigeria's oil and gas industry and a key port. Benin City, capital of the historic Kingdom of Benin, is renowned worldwide for its centuries-old bronze artworks and remains a cultural touchstone. Aba, in the south-east, is a famously entrepreneurial manufacturing and trading city, sometimes nicknamed the "Japan of Africa" for its workshops and small-scale industry. This spread of cities across the coast, the delta, the south-west, and the north shows how Nigeria's urban growth is driven by trade, energy, agriculture, and administration all at once.
Nobody Knows How Big Lagos Is
Estimates of the population of Lagos vary from around fifteen million to well over twenty, and the disagreement is not a rounding error. Nigeria has not completed a widely accepted census since 1991, with the 2006 count disputed and subsequent attempts repeatedly postponed.
The stakes are the reason. Federal revenue allocation and parliamentary seats are distributed by population, so any count is immediately a fight between the north and the south and between states. The 2006 census reported figures for Lagos State that the state government publicly rejected as far too low.
What is not disputed is direction. Lagos is among the fastest-growing cities in the world, and projections regularly place it among the largest urban areas on earth by mid-century.
The Capital Moved to the Middle
Abuja was built to replace Lagos as the federal capital, formally taking over in December 1991. The reasoning was explicit: Lagos was congested and sat in the Yoruba south-west, and a capital in the geographic centre would belong to no single ethnic group or region.
The site was chosen in 1976 in a sparsely populated area of the Middle Belt, and the city was master-planned with a central axis running from the National Assembly to Aso Rock, the granite monolith behind the presidential complex.
Its population has since grown far faster than the plan anticipated, and satellite districts have spread well beyond the designed area, which is the familiar fate of purpose-built capitals from Brasilia onwards.
Kano Is Older Than Almost Anything Around It
Kano, the largest northern city, has been a substantial urban centre for a thousand years. It was a terminus of the trans-Saharan trade routes, exchanging leather, cloth and kola nuts for salt and goods from North Africa, and the Kano Chronicle records its kings back to the tenth century.
Its ancient walls, the dye pits at Kofar Mata which have operated since the fifteenth century, and the Kurmi market are all still in use or standing. The city is predominantly Hausa and Muslim, and it has been governed under sharia criminal law since 2000, as have eleven other northern states.
The contrast with Lagos runs through Nigerian politics: two cities of comparable weight, one northern, Muslim and inland, the other southern, largely Christian and coastal.
Oil Is in the Delta, Not in the Cities
Nigeria is Africa's largest oil producer, and almost none of the production is near the largest cities. The fields are in the Niger Delta, around Port Harcourt and Warri, in a landscape of creeks and mangrove that has borne the environmental cost.
Ogoniland became internationally known through Ken Saro-Wiwa's campaign and his execution in 1995, and a 2011 United Nations assessment found contamination there requiring the largest oil cleanup ever attempted.
Port Harcourt, the delta's main city, grew as the industry's base. The revenue, however, flows to Abuja and is redistributed, which is the structural grievance behind decades of militancy in the region.
Lagos Runs on Its Own Economy
Lagos State generates a very large share of Nigeria's non-oil GDP and would rank among the larger African economies on its own. Its port complex at Apapa and Tin Can Island handles most of the country's container traffic, and the resulting lorry congestion on the access roads is notorious.
The city is also the centre of Nollywood, which by volume of films produced is among the largest film industries in the world, and of the Afrobeats scene that has moved from Lagos studios to global charts within fifteen years.
Eko Atlantic, a district being built on land reclaimed from the Atlantic beside Victoria Island, is intended as a financial centre and sea defence in one, on ground where erosion had been eating the shoreline for decades.
Common Questions About Nigerian Cities
What is the largest city in Nigeria?
Lagos is the largest city in Nigeria, with a metropolitan population of around 15.4 million. It is the country's main commercial and cultural centre and one of the largest cities in all of Africa.
Is Lagos the capital of Nigeria?
No. Lagos was the capital until 1991, when the capital was moved to the purpose-built city of Abuja in the centre of the country. Lagos remains the largest city and economic hub, while Abuja is the seat of government.
What is the second-largest city in Nigeria?
Kano, in northern Nigeria, is the second-largest city with roughly 4.1 million residents. It is also one of Africa's oldest and most historically significant trading cities.
How many people live in Nigeria?
Nigeria has a population of approximately 213 million, making it the most populous country in Africa and one of the most populous in the world. Rapid urbanisation continues to drive growth in its largest cities.
Is Lagos the capital of Nigeria?
No. Abuja has been the capital since 1991. Lagos remains by far the largest city and the commercial centre, which is why it is often assumed to be the capital.
Why is Nigeria's population figure disputed?
Because federal money and parliamentary seats are allocated by population, so every census becomes a contest between regions and states. The last widely used count was 1991, the 2006 figures were rejected by several state governments including Lagos, and later attempts have been postponed repeatedly.
How many languages are spoken in Nigeria?
Over 500, which is among the highest counts of any country. Hausa, Yoruba and Igbo are the three largest and map broadly onto the north, south-west and south-east, with English serving as the official language precisely because it belongs to none of them.