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Jiaonan, 
China
325,383 people lived in Jiaonan in 2025. It is the 1765th largest of the world's 12,138 cities, and the 325th largest in China.
This is the UN's built-up area, drawn from satellite pictures and census maps rather than from the city limits, and the two can be a long way apart. The rule behind it.
The UN writes its name 胶南; “Jiaonan” is our romanization.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Jiaonan grew
Where Jiaonan had 10 people in 1975, it had 30.4 in 2025.
On the UN's projection it will have 297,980 people in 2050. It passed 250,000 people between 2000 and 2005.
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
Jiaonan through your family’s years
Put in the years your family were born. You’ll see how many people lived in Jiaonan in each of those years, and when each of them turned 30.
China · every city · 2025
Where it is
How to read this: Jiaonan 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, Jiaonan covered 90 km², and buildings, roads and other built-up land covered 24 km² of it. That is 74 m² of built-up land for each person, about a square 9 by 9 metres. Since 1975, its built-up land has grown to 8.3 times its size, and its people are 3 times as many.
How to read this: each pale square is the city's whole area, the strong square inside it the part that is built on; one scale for all three, so a bigger square is more land. Hatched is the UN's projection.
Of every 100 people in China
Its share of China
Fewer than 1 in every 1,000 people in China lived in Jiaonan in 2025 — about 1 in 4,348.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1761 Port-de-Paix Haiti326,041
- 1762 Rishikesh India325,933
- 1763 Khanakul India325,882
- 1764 Sanandaj Iran325,425
- 1765 Jiaonan325,383
- 1766 Canoas Brazil325,022
- 1767 Sumedang Indonesia324,936
- 1768 Kaiping324,576
- 1769 Uruapan Mexico324,219
In China, 2025
- 1749 Shangyu District328,545
- 1750 Ya'an328,287
- 1755 Baoshan327,416
- 1757 Xiangtan326,965
- 1765 Jiaonan325,383
- 1768 Kaiping324,576
- 1773 Lieshan323,702
- 1775 Huangshan323,492
- 1790 Chuzhou321,424
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 Jiaonan 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 Jiaonan 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