Topics
Huidong, 
China
428,137 people lived in Huidong in 2025. It is the 1305th largest of the world's 12,138 cities, and the 242nd 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.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Huidong grew
For every 10 people in Huidong in 1975, there were 50 in 2025.
On the UN's projection it will have 456,167 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: each column is one of the UN's five-yearly estimates, 1975 through 2050, and taller means more people. Where a column is hatched the year has not happened yet. The strip under the columns is the UN's own confidence in each figure, palest where it is least sure; where it is blank the city was not on the list at all.
People · your family's years · 1975 to 2050
Huidong through your family’s years
Put in the years your family were born. You’ll see how many people lived in Huidong 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 Huidong; 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, Huidong covered 46 km², and buildings, roads and other built-up land covered 10 km² of it. That is 24 m² of built-up land for each person, about a square 5 by 5 metres. Since 1975, its built-up land has grown to 6.7 times its size, and its people are 5 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 Huidong in 2025 — about 1 in 3,333.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1301 Chandpur Bangladesh430,144
- 1302 Providence United States429,694
- 1303 Santiago de Cuba Cuba429,537
- 1304 Cheonan-si South Korea428,378
- 1305 Huidong428,137
- 1306 Samadon Egypt428,126
- 1307 Khansahib India428,041
- 1308 Coventry United Kingdom427,678
- 1309 Wiesbaden Germany427,270
In China, 2025
- 1282 Guang'an436,199
- 1286 Gaozhou435,368
- 1290 Shizhong433,213
- 1293 Huiminxiang432,064
- 1305 Huidong428,137
- 1311 Hanchuan426,922
- 1314 Longquanyi426,144
- 1317 Ranghulu424,460
- 1318 Ziyang424,328
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 Huidong 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 Huidong 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