Nigeria’s population is now estimated at more than 230 million people, making it the most populous country in Africa, but where do most of those people actually live? The short answer: the densely settled states of the north-west and the booming south-west, led by Kano and Lagos.
How big is Nigeria’s population today?
Most international estimates put the country at roughly 230 million in 2026, drawing on United Nations projections and National Population Commission figures. Some demographic databases push the number higher, toward 240 million or more. The wide range exists for one simple reason: the last full census was held in 2006, so every current total is a projection rather than a head count.
That caveat matters. Politicians, planners and businesses all rely on these estimates to share revenue, site hospitals and target markets, yet the underlying data is two decades old. A new census has been discussed repeatedly but remains pending, which is why credible sources can differ by tens of millions.
The most populous states
By most rankings, Kano State is the largest, with an estimated population in the region of 18 million, followed closely by Lagos State at around 16 million. Kaduna and Katsina, both in the north, are usually next, each estimated at roughly 10 to 11 million residents.
The pattern points to two centres of gravity. The north-west holds the biggest cluster of people, spread across large, mostly rural states. The south-west, anchored by Lagos, is more compact but intensely urban, packing huge numbers into a small land area. Together these zones carry a large share of the national total.
Cities versus countryside
Nigeria is urbanising fast. Lagos is one of the largest cities in Africa, and metropolitan areas like Kano, Ibadan, Port Harcourt and Abuja keep pulling in young people in search of work and education. Even so, a very large share of Nigerians still live in rural communities, especially across the north, where farming remains the backbone of daily life.
This split shapes almost everything, from how power and water are delivered to where schools and clinics are most stretched. Crowded cities face housing and transport pressure, while rural areas often struggle with access to basic services despite holding millions of residents.
The country is also strikingly young. A large majority of Nigerians are under the age of 30, which means the population is not only big but expanding quickly, with one of the fastest growth rates in the world. Demographers expect Nigeria to become one of the most populous nations on earth within a few decades, overtaking several countries that look larger today. That trajectory puts huge demands on jobs, classrooms and housing, and it makes accurate counting more important, not less.
Why the numbers are contested
Population figures in Nigeria are sensitive because they help decide how national resources and political seats are shared. That makes counting people a high-stakes exercise, and it partly explains why estimates from government sources sometimes differ from those produced by international agencies and urban researchers.
Until a fresh, widely accepted census is conducted, the honest answer to where most Nigerians live rests on projections. The broad picture is clear enough: a young, fast-growing nation concentrated in the north-west and the Lagos megacity, with the rest of the population spread across a mix of mid-sized cities and vast rural communities.
