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Iksan-si, 
South Korea
164,566 people lived in Iksan-si in 2025. It is the 3680th largest of the world's 12,138 cities, and the 20th largest in South Korea.
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 Iksan-si grew
Where Iksan-si had 10 people in 1975, it had 4.5 in 2025, fewer than it started with.
On the UN's projection it will have 144,595 people in 2050. The UN's figures for Iksan-si fall from 365,507 in 1975 to 144,595 in 2050. The UN rates its own confidence in the 1975 figure as low: cities are counted from census maps, and where those are old or coarse the figures are least certain.
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
Iksan-si through your family’s years
Put in the years your family were born. You’ll see how many people lived in Iksan-si in each of those years, and when each of them turned 30.
South Korea · every city · 2025
Where it is
How to read this: Iksan-si is the dot in colour with a ring around it. The grey dots are the other cities of South Korea in 2025, 49 in all, led by Seoul, 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, Iksan-si covered 35 km², and buildings, roads and other built-up land covered 10 km² of it. That is 63 m² of built-up land for each person, about a square 8 by 8 metres. Since 1975, its built-up land has grown to 2.2 times its size, and its people have fallen by 55%.
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 South Korea
Its share of South Korea
Of every 1,000 people in South Korea in 2025, 3 lived in Iksan-si, which is 164,566 people.
How to read this: 1,000 squares, one for every 1,000th person in South Korea; the coloured squares live in Iksan-si. 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
- 3652 Matta Pakistan165,993
- 3659 Sandoa Democratic Republic of the Congo165,522
- 3667 Akhaura Bangladesh165,093
- 3670 Geita Tanzania165,000
- 3680 Iksan-si164,566
- 3687 Embu Kenya164,283
- 3695 Durame Ethiopia163,896
- 3696 Cazombo Angola163,870
- 3712 Delduar Bangladesh163,064
In South Korea, 2025
- 1304 Cheonan-si428,378
- 1487 Pohang-si382,368
- 1955 Gumi-si296,323
- 2463 Jinju-si237,707
- 3680 Iksan-si164,566
- 4103 Suncheon-si147,975
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 Iksan-si 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 Iksan-si 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