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Haicheng, 
China
383,983 people lived in Haicheng in 2025. It is the 1480th largest of the world's 12,138 cities, and the 274th largest in China.
That figure counts the whole built-up area, not the area Haicheng 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 Haicheng grew
Where Haicheng had 10 people in 1975, it had 29.7 in 2025.
On the UN's projection it will have 343,073 people in 2050. It passed 250,000 people between 1990 and 1995.
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
Haicheng through your family’s years
Put in the years your family were born. You’ll see how many people lived in Haicheng in each of those years, and when each of them turned 30.
China · every city · 2025
Where it is
How to read this: Haicheng 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, Haicheng covered 57 km², and buildings, roads and other built-up land covered 13 km² of it. That is 35 m² of built-up land for each person, about a square 6 by 6 metres. Since 1975, its built-up land has grown to 2.7 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 Haicheng in 2025 — about 1 in 3,704.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1476 Yongkang385,247
- 1477 Fuqing385,081
- 1478 Gdansk Poland384,985
- 1479 Muzaffargarh Pakistan384,838
- 1480 Haicheng383,983
- 1481 Caxias do Sul Brazil383,774
- 1482 Tongling383,739
- 1483 Eluru India383,068
- 1484 Villavicencio Colombia383,028
In China, 2025
- 1458 Wenling390,282
- 1472 Changping386,664
- 1476 Yongkang385,247
- 1477 Fuqing385,081
- 1480 Haicheng383,983
- 1482 Tongling383,739
- 1488 Guangyuan381,738
- 1490 Changji/Sanji381,391
- 1494 Dongyang380,793
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 Haicheng 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 Haicheng 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