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Gumi-si, 
South Korea
296,323 people lived in Gumi-si in 2025. It is the 1955th largest of the world's 12,138 cities, and the 12th 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 Gumi-si grew
Count 10 people in Gumi-si in 1975 and the same count gives 39 in 2025.
On the UN's projection it will have 239,874 people in 2050. It passed 250,000 people between 1995 and 2000.
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
Gumi-si through your family’s years
Put in the years your family were born. You’ll see how many people lived in Gumi-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: Gumi-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, Gumi-si covered 67 km², and buildings, roads and other built-up land covered 16 km² of it. That is 54 m² of built-up land for each person, about a square 7 by 7 metres. Since 1975, its built-up land has grown to 2.8 times its size, and its people are 3.9 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 South Korea
Its share of South Korea
Of every 1,000 people in South Korea in 2025, 6 lived in Gumi-si, which is 296,323 people.
How to read this: 1,000 squares, one for every 1,000th person in South Korea; the coloured squares live in Gumi-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
- 1950 Valsad India296,851
- 1951 Ankleshwar India296,840
- 1952 Najibabad India296,669
- 1954 Birnin Kebbi Nigeria296,331
- 1955 Gumi-si296,323
- 1956 Tanga Tanzania296,202
- 1957 Kankan Guinea296,159
- 1958 Renqiu China295,917
- 1959 Wonosobo Indonesia295,758
In South Korea, 2025
- 814 Changwon665,772
- 848 Jeonju637,082
- 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: 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 Gumi-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 Gumi-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