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Diourbel, 
Senegal
237,795 people lived in Diourbel in 2025. It is the 2461st largest of the world's 12,138 cities, and the 9th largest in Senegal.
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 Diourbel grew
For every 10 people in Diourbel in 1975, there were 25.9 in 2025.
On the UN's projection it will have 364,871 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: each column is one of the UN's five-yearly estimates, 1975 through 2050, and taller means more people. Where a column is hatched the year has not happened yet. The strip under the columns is the UN's own confidence in each figure, palest where it is least sure; where it is blank the city was not on the list at all.
People · your family's years · 1975 to 2050
Diourbel through your family’s years
Put in the years your family were born. You’ll see how many people lived in Diourbel in each of those years, and when each of them turned 30.
Senegal · every city · 2025
Where it is
How to read this: Senegal and its 26 cities in 2025, each a dot whose area is its number of people (the largest is Dakar). Diourbel 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, Diourbel covered 27 km², and buildings, roads and other built-up land covered 6.1 km² of it. That is 26 m² of built-up land for each person, about a square 5 by 5 metres. Since 1975, its built-up land has grown by 91%, and its people are 2.6 times as many.
How to read this: the outer pale square stands for all the land the city covers, and the solid square inside it for the part with buildings, roads and the like on it. All three squares share a scale, so you can compare them by eye. A hatched one is a year the UN has projected.
Of every 100 people in Senegal
Its share of Senegal
Of every 100 people in Senegal in 2025, 1 lived in Diourbel, which is 237,795 people.
How to read this: 100 squares, one for every 100th person in Senegal; the coloured squares live in Diourbel. 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
- 2450 Đà Lạt Vietnam239,212
- 2458 Dosso Niger238,280
- 2459 Derudeib Sudan238,164
- 2460 Ota Japan237,865
- 2461 Diourbel237,795
- 2463 Jinju-si South Korea237,707
- 2464 Tal Afar Iraq237,454
- 2465 Dhaka India237,385
- 2469 Manikganj Bangladesh237,163
In Senegal, 2025
- 1365 Kaolack412,347
- 2057 Ziguinchor282,751
- 2153 Saint-Louis270,413
- 2430 Tambacounda241,254
- 2461 Diourbel237,795
How to read this: names are in order of size, the leading number being each city's rank among all 12,138 in 2025; the bars share a scale within a list. A jump in the ranks means a city under 300,000 people, which is not given a page here.
Apparatus
Sources and method
The figures for Diourbel 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 Diourbel 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