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Tianjin, 
China
7,285,342 people lived in Tianjin in 2025. It is the 47th largest of the world's 12,138 cities, and the 8th largest in China.
That figure counts the whole built-up area, not the area Tianjin governs, so it may be far from the number the city publishes about itself. How the UN measures a city.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Tianjin grew
Count 10 people in Tianjin in 1975 and the same count gives 28.4 in 2025.
On the UN's projection it will have 7.6 million people in 2050. It passed five million 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
Tianjin through your family’s years
Put in the years your family were born. You’ll see how many people lived in Tianjin 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 Tianjin; 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, Tianjin covered 541 km², and buildings, roads and other built-up land covered 156 km² of it. That is 21 m² of built-up land for each person, about a square 5 by 5 metres. Since 1975, its built-up land has grown to 2.7 times its size, and its people are 2.8 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
Of every 1,000 people in China in 2025, 5 lived in Tianjin, which is 7.3 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 Tianjin's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 43 Suzhou7,731,101
- 44 Ahmedabad India7,632,408
- 45 Hangzhou7,500,208
- 46 Wuhan7,363,548
- 47 Tianjin7,285,342
- 48 Alexandria Egypt7,266,957
- 49 Nagoya Japan7,146,160
- 50 Johannesburg South Africa7,077,175
- 51 Chongqing7,071,073
In China, 2025
- 23 Shenzhen13,878,396
- 43 Suzhou7,731,101
- 45 Hangzhou7,500,208
- 46 Wuhan7,363,548
- 47 Tianjin7,285,342
- 51 Chongqing7,071,073
- 57 Nanjing6,800,676
- 61 Chaozhou6,407,770
- 64 Chengdu6,139,874
How to read this: names are in order of size, the leading number being each city's rank among all 12,138 in 2025; the bars share a scale within a list. A jump in the ranks means a city under 300,000 people, which is not given a page here.
Apparatus
Sources and method
The figures for Tianjin 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 Tianjin 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