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Kassala, 
Sudan
390,525 people lived in Kassala in 2025. It is the 1457th largest of the world's 12,138 cities, and the 12th largest in Sudan.
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 Kassala'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 Kassala grew
For every 10 people in Kassala in 1975, there were 51 in 2025.
On the UN's projection it will have 593,762 people in 2050. It passed 250,000 people between 2000 and 2005.
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
Kassala through your family’s years
Put in the years your family were born. You’ll see how many people lived in Kassala in each of those years, and when each of them turned 30.
Sudan · every city · 2025
Where it is
How to read this: Sudan and its 105 cities in 2025, each a dot whose area is its number of people (the largest is Khartoum). Kassala 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, Kassala covered 65 km², and buildings, roads and other built-up land covered 15 km² of it. That is 38 m² of built-up land for each person, about a square 6 by 6 metres. Since 1975, its built-up land has grown to 3.6 times its size, and its people are 5.1 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 Sudan
Its share of Sudan
Of every 1,000 people in Sudan in 2025, 8 lived in Kassala, which is 390,525 people.
How to read this: 1,000 squares stand for everyone in Sudan, one square for every 1,000th person. Count the coloured ones and you have Kassala's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1453 Juba South Sudan391,311
- 1454 Zheba China390,709
- 1455 Cardiff United Kingdom390,692
- 1456 Takht Bhai Pakistan390,608
- 1457 Kassala390,525
- 1458 Wenling China390,282
- 1459 Soyo Angola389,945
- 1460 Rangkasbitung Indonesia389,934
- 1461 Sikasso Mali389,804
In Sudan, 2025
- 1074 Port Sudan517,023
- 1140 Timerein486,586
- 1297 Kosti431,504
- 1400 Wad Madanī403,988
- 1457 Kassala390,525
- 1491 Kas381,286
- 1808 Al-Qadarif317,258
- 2087 Saraf `Umrah278,467
- 2300 Rabak253,166
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 Kassala 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 Kassala 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