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Jianyang, 
China
333,938 people lived in Jianyang in 2025. It is the 1715th largest of the world's 12,138 cities, and the 315th largest in China.
The UN measures every city in the world the same way, by where the buildings are rather than where the boundary runs, so this figure and Jianyang's own can differ widely. What counts as a city here.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Jianyang grew
Count 10 people in Jianyang in 1985 and the same count gives 57.9 in 2025.
On the UN's projection it will have 290,997 people in 2050. It passed 250,000 people between 1995 and 2000. The UN first counts it as a city in 1985, when it passed 50,000 people.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: one column every five years, 1975 to 2050; its height is the number of people. Hatched columns are the UN's projection. The thin strip beneath says how sure the UN is of each figure: the stronger the colour, the surer. A blank means the place was not on the UN's list of cities that year.
People · your family's years · 1975 to 2050
Jianyang through your family’s years
Put in the years your family were born. You’ll see how many people lived in Jianyang in each of those years, and when each of them turned 30.
China · every city · 2025
Where it is
How to read this: Jianyang is the dot in colour with a ring around it. The grey dots are the other cities of China in 2025, 2,082 in all, led by Shanghai, 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, Jianyang covered 39 km², and buildings, roads and other built-up land covered 4.8 km² of it. That is 14 m² of built-up land for each person, about a square 4 by 4 metres. Since 1985, its built-up land has grown to 4.4 times its size, and its people are 5.8 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 Jianyang in 2025 — about 1 in 4,167.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1711 Jaranwala Pakistan335,463
- 1712 Agadez Niger335,322
- 1713 Tianmen334,299
- 1714 M'banza Congo Angola334,203
- 1715 Jianyang333,938
- 1716 Neiva Colombia333,744
- 1717 Nagaon India333,706
- 1718 Xuanhua333,650
- 1719 Sikar India333,509
In China, 2025
- 1700 Ningguo336,274
- 1702 Shouguang336,017
- 1709 Changyi335,538
- 1713 Tianmen334,299
- 1715 Jianyang333,938
- 1718 Xuanhua333,650
- 1727 Hui'an332,559
- 1732 Liaoyuan331,469
- 1738 Xuanwei330,467
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 Jianyang are the UN's own, at five-year steps: an estimate for each of 1985 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 Jianyang 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