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Okposi, 
Nigeria
134,677 people lived in Okposi in 2025. It is the 4522nd largest of the world's 12,138 cities, and the 169th largest in Nigeria.
Like every city on this site, Okposi is counted as a built-up area seen from above rather than as a city government's territory. Why that changes the number.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Okposi grew
Count 10 people in Okposi in 1995 and the same count gives 24.6 in 2025.
On the UN's projection it will have 358,735 people in 2050. On the UN's projection it passes 250,000 people between 2040 and 2045. The UN first counts it as a city in 1995, when it passed 50,000 people.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: read it left to right, 1975 to 2050, one column every five years, the height being people. Hatching marks the projected years. Below, a strip of the UN's confidence: strong colour where the census maps are recent and detailed, pale where they are not, blank where the place was not counted as a city.
People · your family's years · 1975 to 2050
Okposi through your family’s years
Put in the years your family were born. You’ll see how many people lived in Okposi in each of those years, and when each of them turned 30.
Nigeria · every city · 2025
Where it is
How to read this: every dot is one of the 457 cities in Nigeria in 2025, and a dot's area is how many people live there, the biggest being Lagos. The ringed dot in colour is Okposi; the grey dots are the rest. The outlines around them are neighbouring countries.
Area and built-up land · km²
How much land it covers
In 2025, Okposi covered 41 km², and buildings, roads and other built-up land covered 3.4 km² of it. That is 25 m² of built-up land for each person, about a square 5 by 5 metres. Since 2005, its built-up land has grown to 2.8 times its size, and its people have grown by 72%.
How to read this: pale is the whole of the city's land; the stronger square inside it is what is actually built on. The three are drawn to the same scale, so a larger square really is more land, and hatching means the year is the UN's projection rather than a count.
Of every 100 people in Nigeria
Its share of Nigeria
Of every 1,000 people in Nigeria in 2025, 1 lived in Okposi, which is 134,677 people.
How to read this: 1,000 squares stand for everyone in Nigeria, one square for every 1,000th person. Count the coloured ones and you have Okposi's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 4389 Rubuchi138,912
- 4404 Khayran Yemen138,244
- 4439 Lwebo Democratic Republic of the Congo137,354
- 4501 Luiza Democratic Republic of the Congo135,439
- 4522 Okposi134,677
- 4537 Marawi Philippines134,181
- 4542 `Adan Barakah Yemen134,066
- 4554 Chilanga Zambia133,860
- 4569 Rajoir Bangladesh133,428
In Nigeria, 2025
- 3278 Akugba183,921
- 3628 Unguwar Arewa166,817
- 4091 Bori148,370
- 4389 Rubuchi138,912
- 4522 Okposi134,677
- 7870 Enugu-Ezike79,250
- 8887 Ikot Ide69,806
How to read this: the figure in front of a name is where that city stands among the 12,138 cities the UN counted in 2025, and each bar is its people, on one scale per list. Numbers are missing where a city has fewer than 300,000 people and so has no page of its own.
Apparatus
Sources and method
The figures for Okposi are the UN's own, at five-year steps: an estimate for each of 1995 to 2025, then projection to 2050. Projected years are drawn hatched, and the UN publishes no range of uncertainty for a city. What a city means here, how the UN measures one, and why that number can differ from the one Okposi publishes about itself: how the figures here are put together.
Sources: UN WUP 2025 · Natural Earth · flag-icons. Every source, its licence and how to cite it →
Verified 2026-09-30 · 73 canaries