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Jiashan, 
China
405,454 people lived in Jiashan in 2025. It is the 1395th largest of the world's 12,138 cities, and the 260th largest in China.
Like every city on this site, Jiashan 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 Jiashan grew
Count 10 people in Jiashan in 1975 and the same count gives 31.6 in 2025.
On the UN's projection it will have 560,556 people in 2050. It passed 250,000 people between 2005 and 2010.
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
Jiashan through your family’s years
Put in the years your family were born. You’ll see how many people lived in Jiashan 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 Jiashan; 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, Jiashan covered 84 km², and buildings, roads and other built-up land covered 21 km² of it. That is 53 m² of built-up land for each person, about a square 7 by 7 metres. Since 1980, its built-up land has grown to 21.4 times its size, and its people are 2.9 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 China
Its share of China
Fewer than 1 in every 1,000 people in China lived in Jiashan in 2025 — about 1 in 3,448.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1391 Resistencia Argentina406,337
- 1392 Abakaliki Nigeria406,105
- 1393 Kumbakonam India405,885
- 1394 Daqing405,480
- 1395 Jiashan405,454
- 1396 Hebron Palestine405,079
- 1397 North Richland Hills United States404,680
- 1398 Sariwon North Korea404,672
- 1399 Point Cook Australia404,501
In China, 2025
- 1376 Huangyan District410,213
- 1380 Dongtai409,015
- 1386 Zhaodong407,507
- 1394 Daqing405,480
- 1395 Jiashan405,454
- 1418 Wuzhou398,593
- 1422 Sanya398,270
- 1423 Pingliang398,221
- 1429 Heze397,886
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 Jiashan 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 Jiashan 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