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Sihui, 
China
337,299 people lived in Sihui in 2025. It is the 1694th largest of the world's 12,138 cities, and the 309th 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 Sihui'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 Sihui grew
For every 10 people in Sihui in 1990, there were 63.9 in 2025.
On the UN's projection it will have 364,517 people in 2050. It passed 250,000 people between 2010 and 2015. The UN first counts it as a city in 1990, when it passed 50,000 people.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: one column every five years, 1975 to 2050; its height is the number of people. Hatched columns are the UN's projection. The thin strip beneath says how sure the UN is of each figure: the stronger the colour, the surer. A blank means the place was not on the UN's list of cities that year.
People · your family's years · 1975 to 2050
Sihui through your family’s years
Put in the years your family were born. You’ll see how many people lived in Sihui 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 Sihui; 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, Sihui covered 53 km², and buildings, roads and other built-up land covered 9.2 km² of it. That is 27 m² of built-up land for each person, about a square 5 by 5 metres. Since 1990, its built-up land has grown to 7.7 times its size, and its people are 6.4 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 Sihui in 2025 — about 1 in 4,167.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1690 Ikere-Ekiti Nigeria338,367
- 1691 Rubavu Rwanda337,963
- 1692 Franca Brazil337,878
- 1693 Vilnius Lithuania337,871
- 1694 Sihui337,299
- 1695 Mandi Bahauddin Pakistan337,161
- 1696 Thakurdwara India336,772
- 1697 Sidfa Egypt336,659
- 1698 Jimma Ethiopia336,448
In China, 2025
- 1673 Qingzhou342,044
- 1675 Neijiang341,371
- 1683 Bo'ai339,876
- 1687 Yan'an338,883
- 1694 Sihui337,299
- 1699 Shuozhou336,303
- 1700 Ningguo336,274
- 1702 Shouguang336,017
- 1709 Changyi335,538
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 Sihui are the UN's own, at five-year steps: an estimate for each of 1990 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 Sihui 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