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Cities · Democratic Republic of the Congo
Kasaji,
Democratic Republic of the Congo
292,523 people lived in Kasaji in 2025. It is the 1985th largest of the world's 12,138 cities, and the 31st largest in the Democratic Republic of the Congo.
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 Kasaji grew
For every 10 people in Kasaji in 2000, there were 47.6 in 2025.
On the UN's projection it will have 508,082 people in 2050. It passed 250,000 people between 2020 and 2025. The UN first counts it as a city in 2000, when it passed 50,000 people.
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
Kasaji through your family’s years
Put in the years your family were born. You’ll see how many people lived in Kasaji in each of those years, and when each of them turned 30.
Democratic Republic of the Congo · every city · 2025
Where it is
How to read this: every dot is one of the 223 cities in the Democratic Republic of the Congo in 2025, and a dot's area is how many people live there, the biggest being Kinshasa. The ringed dot in colour is Kasaji; 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, Kasaji covered 19 km², and buildings, roads and other built-up land covered 3.8 km² of it. That is 13 m² of built-up land for each person, about a square 4 by 4 metres. Since 2000, its built-up land has grown by 65%, and its people are 4.8 times as many.
How to read this: each pale square is the city's whole area, the strong square inside it the part that is built on; one scale for all three, so a bigger square is more land. Hatched is the UN's projection.
Of every 100 people in the Democratic Republic of the Congo
Its share of the Democratic Republic of the Congo
Of every 1,000 people in the Democratic Republic of the Congo in 2025, 3 lived in Kasaji, which is 292,523 people.
How to read this: 1,000 squares, one for every 1,000th person in the Democratic Republic of the Congo; the coloured squares live in Kasaji. 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
- 1981 Bohicon Benin293,833
- 1982 San-Pédro Côte d’Ivoire293,698
- 1983 Lausanne Switzerland293,509
- 1984 Hazro Pakistan293,506
- 1985 Kasaji292,523
- 1986 Kanyamazane South Africa292,211
- 1987 Matara Sri Lanka292,019
- 1988 Bhadrak India291,997
- 1990 Bayannur China291,787
In the Democratic Republic of the Congo, 2025
- 1791 Ilebo321,392
- 1859 Kindu309,727
- 1928 Fungurume298,713
- 1973 Kasumbalesa294,623
- 1985 Kasaji292,523
- 2079 Mweka279,312
- 2164 Kabinda269,115
- 2279 Kilwa256,165
- 2353 Lisala248,434
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 Kasaji are the UN's own, at five-year steps: an estimate for each of 2000 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 Kasaji 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