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Warri, 
Nigeria
1,607,702 people lived in Warri in 2025. It is the 305th largest of the world's 12,138 cities, and the 9th largest in Nigeria.
This is the UN's built-up area, drawn from satellite pictures and census maps rather than from the city limits, and the two can be a long way apart. The rule behind it.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Warri grew
Where Warri had 10 people in 1975, it had 99.1 in 2025.
On the UN's projection it will have 2.4 million people in 2050. It passed a million people between 2010 and 2015.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: one column every five years, 1975 to 2050; its height is the number of people. Hatched columns are the UN's projection. The thin strip beneath says how sure the UN is of each figure: the stronger the colour, the surer. A blank means the place was not on the UN's list of cities that year.
People · your family's years · 1975 to 2050
Warri through your family’s years
Put in the years your family were born. You’ll see how many people lived in Warri in each of those years, and when each of them turned 30.
Nigeria · every city · 2025
Where it is
How to read this: Nigeria and its 457 cities in 2025, each a dot whose area is its number of people (the largest is Lagos). Warri is ringed, in colour; the other cities are grey. Neighbouring countries are outlines.
Area and built-up land · km²
How much land it covers
In 2025, Warri covered 248 km², and buildings, roads and other built-up land covered 54 km² of it. That is 34 m² of built-up land for each person, about a square 6 by 6 metres. Since 1975, its built-up land has grown to 3.8 times its size, and its people are 9.9 times as many.
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, 7 lived in Warri, which is 1.6 million people.
How to read this: 1,000 squares, one for every 1,000th person in Nigeria; the coloured squares live in Warri. The grey rest live in other cities, in towns or in the countryside.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 301 Zibo China1,620,676
- 302 San Salvador El Salvador1,615,178
- 303 Gaziantep Türkiye1,613,357
- 304 Budapest Hungary1,609,260
- 305 Warri1,607,702
- 306 Tegucigalpa Honduras1,607,033
- 307 Maharajganj India1,601,258
- 308 Ulaanbaatar Mongolia1,596,556
- 309 Havana Cuba1,593,580
In Nigeria, 2025
- 123 Ibadan3,720,721
- 211 Port Harcourt2,341,445
- 266 Kaduna1,890,448
- 271 Benin City1,845,432
- 305 Warri1,607,702
- 316 Uyo1,567,115
- 355 Aba1,428,069
- 367 Aboh1,374,320
- 368 Abuja1,373,722
How to read this: the number before each name is its place among all 12,138 cities in the world in 2025; bars are people, on one scale per list. Only cities that reach 300,000 people have a page here, so a gap in the numbers is a smaller city.
Apparatus
Sources and method
The figures for Warri are the UN's own, at five-year steps: an estimate for each of 1975 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 Warri 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