Topics
Changyi, 
China
335,538 people lived in Changyi in 2025. It is the 1709th largest of the world's 12,138 cities, and the 313th largest in China.
Like every city on this site, Changyi 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 Changyi grew
Where Changyi had 10 people in 2000, it had 29.8 in 2025.
On the UN's projection it will have 298,692 people in 2050. It passed 250,000 people between 2015 and 2020. The UN first counts it as a city in 2000, when it passed 50,000 people.
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
Changyi through your family’s years
Put in the years your family were born. You’ll see how many people lived in Changyi in each of those years, and when each of them turned 30.
China · every city · 2025
Where it is
How to read this: China and its 2,082 cities in 2025, each a dot whose area is its number of people (the largest is Shanghai). Changyi is ringed, in colour; the other cities are grey. Neighbouring countries are outlines.
Area and built-up land · km²
How much land it covers
In 2025, Changyi covered 79 km², and buildings, roads and other built-up land covered 16 km² of it. That is 48 m² of built-up land for each person, about a square 7 by 7 metres. Since 2000, its built-up land has grown to 3.2 times its size, and its people are 3 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
Fewer than 1 in every 1,000 people in China lived in Changyi in 2025 — about 1 in 4,167.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1705 Sri Ganganagar India335,747
- 1706 Duri Indonesia335,728
- 1707 Indramayu Indonesia335,572
- 1708 Bonny Nigeria335,542
- 1709 Changyi335,538
- 1710 Mansa Zambia335,503
- 1711 Jaranwala Pakistan335,463
- 1712 Agadez Niger335,322
- 1713 Tianmen334,299
In China, 2025
- 1694 Sihui337,299
- 1699 Shuozhou336,303
- 1700 Ningguo336,274
- 1702 Shouguang336,017
- 1709 Changyi335,538
- 1713 Tianmen334,299
- 1715 Jianyang333,938
- 1718 Xuanhua333,650
- 1727 Hui'an332,559
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 Changyi are the UN's own, at five-year steps: an estimate for each of 2000 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 Changyi 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