Topics
Changzhou, 
China
2,649,836 people lived in Changzhou in 2025. It is the 189th largest of the world's 12,138 cities, and the 35th largest in China.
Like every city on this site, Changzhou 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 Changzhou grew
Count 10 people in Changzhou in 1975 and the same count gives 77.1 in 2025.
On the UN's projection it will have 2.5 million people in 2050. It passed a million people between 1990 and 1995.
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
Changzhou through your family’s years
Put in the years your family were born. You’ll see how many people lived in Changzhou 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 Changzhou; 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, Changzhou covered 521 km², and buildings, roads and other built-up land covered 144 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 9.7 times its size, and its people are 7.7 times as many.
How to read this: the outer pale square stands for all the land the city covers, and the solid square inside it for the part with buildings, roads and the like on it. All three squares share a scale, so you can compare them by eye. A hatched one is a year the UN has projected.
Of every 100 people in China
Its share of China
Of every 1,000 people in China in 2025, 2 lived in Changzhou, which is 2.6 million people.
How to read this: 1,000 squares stand for everyone in China, one square for every 1,000th person. Count the coloured ones and you have Changzhou's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 185 Guiyang2,686,949
- 186 Semarang Indonesia2,679,349
- 187 Montreal Canada2,668,723
- 188 Izmir Türkiye2,650,237
- 189 Changzhou2,649,836
- 190 Tel Aviv Israel2,642,872
- 191 Birmingham United Kingdom2,631,757
- 192 Kiev Ukraine2,614,581
- 193 Wuxi2,613,100
In China, 2025
- 164 Shijiazhuang2,990,397
- 171 Fuzhou2,910,985
- 178 Dalian2,796,248
- 185 Guiyang2,686,949
- 189 Changzhou2,649,836
- 193 Wuxi2,613,100
- 215 Tangshan2,286,763
- 218 Lanzhou2,272,104
- 234 Cixi2,177,489
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 Changzhou 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 Changzhou 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