Topics
Tianmen, 
China
334,299 people lived in Tianmen in 2025. It is the 1713th largest of the world's 12,138 cities, and the 314th 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 Tianmen'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 Tianmen grew
Count 10 people in Tianmen in 1975 and the same count gives 48.8 in 2025.
On the UN's projection it will have 279,566 people in 2050. It passed 250,000 people between 1995 and 2000.
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
Tianmen through your family’s years
Put in the years your family were born. You’ll see how many people lived in Tianmen 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). Tianmen 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, Tianmen covered 47 km², and buildings, roads and other built-up land covered 8.9 km² of it. That is 27 m² of built-up land for each person, about a square 5 by 5 metres. Since 1975, its built-up land has grown to 5.9 times its size, and its people are 4.9 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 Tianmen in 2025 — about 1 in 4,167.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1709 Changyi335,538
- 1710 Mansa Zambia335,503
- 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
In China, 2025
- 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
- 1732 Liaoyuan331,469
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 Tianmen 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 Tianmen 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