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Longyan, 
China
422,165 people lived in Longyan in 2025. It is the 1328th largest of the world's 12,138 cities, and the 249th largest in China.
Like every city on this site, Longyan is counted as a built-up area seen from above rather than as a city government's territory. Why that changes the number.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Longyan grew
Where Longyan had 10 people in 1975, it had 24.5 in 2025.
On the UN's projection it will have 385,317 people in 2050. It passed 250,000 people between 1980 and 1985.
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
Longyan through your family’s years
Put in the years your family were born. You’ll see how many people lived in Longyan in each of those years, and when each of them turned 30.
China · every city · 2025
Where it is
How to read this: every dot is one of the 2,082 cities in China in 2025, and a dot's area is how many people live there, the biggest being Shanghai. The ringed dot in colour is Longyan; 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, Longyan covered 60 km², and buildings, roads and other built-up land covered 12 km² of it. That is 29 m² of built-up land for each person, about a square 5 by 5 metres. Since 1975, its built-up land has grown to 4.2 times its size, and its people are 2.5 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 China
Its share of China
Fewer than 1 in every 1,000 people in China lived in Longyan in 2025 — about 1 in 3,333.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1324 Shaoguan422,509
- 1325 Bremen Germany422,414
- 1326 Niigata Japan422,238
- 1327 Jijiga Ethiopia422,225
- 1328 Longyan422,165
- 1329 Tucson United States422,107
- 1330 Chișinău Moldova422,035
- 1331 Bathinda India421,753
- 1332 Bida Nigeria421,605
In China, 2025
- 1317 Ranghulu424,460
- 1318 Ziyang424,328
- 1321 Jingdezhen423,386
- 1324 Shaoguan422,509
- 1328 Longyan422,165
- 1348 Taixing416,677
- 1350 Lishui416,469
- 1352 Yixing415,587
- 1354 Fuyang415,492
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 Longyan 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 Longyan 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