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Obuasi, 
Ghana
245,920 people lived in Obuasi in 2025. It is the 2371st largest of the world's 12,138 cities, and the 7th largest in Ghana.
The UN measures every city in the world the same way, by where the buildings are rather than where the boundary runs, so this figure and Obuasi's own can differ widely. What counts as a city here.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Obuasi grew
For every 10 people in Obuasi in 1975, there were 23.8 in 2025.
On the UN's projection it will have 375,050 people in 2050. On the UN's projection it passes 250,000 people between 2025 and 2030.
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
Obuasi through your family’s years
Put in the years your family were born. You’ll see how many people lived in Obuasi in each of those years, and when each of them turned 30.
Ghana · every city · 2025
Where it is
How to read this: Obuasi is the dot in colour with a ring around it. The grey dots are the other cities of Ghana in 2025, 58 in all, led by Accra, each drawn with an area that matches its people. Countries next door are outlines only.
Area and built-up land · km²
How much land it covers
In 2025, Obuasi covered 48 km², and buildings, roads and other built-up land covered 10 km² of it. That is 41 m² of built-up land for each person, about a square 6 by 6 metres. Since 1975, its built-up land has grown to 2.7 times its size, and its people are 2.4 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 Ghana
Its share of Ghana
Of every 1,000 people in Ghana in 2025, 7 lived in Obuasi, which is 245,920 people.
How to read this: 1,000 squares, one for every 1,000th person in Ghana; the coloured squares live in Obuasi. 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
- 2362 Sreemangal Bangladesh247,298
- 2364 Koforidua246,770
- 2366 Irgalem Ethiopia246,701
- 2368 Phan Thiết Vietnam246,665
- 2371 Obuasi245,920
- 2373 Saidpur Bangladesh245,655
- 2374 Yamoussoukro Côte d’Ivoire245,612
- 2376 Shorsh Iraq245,565
- 2377 Dhupguri India245,107
In Ghana, 2025
- 457 Sekondi-Takoradi1,127,436
- 830 Tamale654,868
- 2066 Cape Coast281,579
- 2364 Koforidua246,770
- 2371 Obuasi245,920
- 2405 Ho243,211
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 Obuasi 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 Obuasi 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