Topics
Siguiri, 
Guinea
297,453 people lived in Siguiri in 2025. It is the 1940th largest of the world's 12,138 cities, and the 2nd largest in Guinea.
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 Siguiri grew
For every 10 people in Siguiri in 2000, there were 58.9 in 2025.
On the UN's projection it will have 615,008 people in 2050. It passed 250,000 people between 2020 and 2025. The UN first counts it as a city in 2000, when it passed 50,000 people.
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
Siguiri through your family’s years
Put in the years your family were born. You’ll see how many people lived in Siguiri in each of those years, and when each of them turned 30.
Guinea · every city · 2025
Where it is
How to read this: Guinea and its 24 cities in 2025, each a dot whose area is its number of people (the largest is Conacry). Siguiri is ringed, in colour; the other cities are grey. Neighbouring countries are outlines.
Area and built-up land · km²
How much land it covers
In 2025, Siguiri covered 46 km², and buildings, roads and other built-up land covered 11 km² of it. That is 36 m² of built-up land for each person, about a square 6 by 6 metres. Since 2000, its built-up land has grown to 6.6 times its size, and its people are 5.9 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 Guinea
Its share of Guinea
Of every 100 people in Guinea in 2025, 2 lived in Siguiri, which is 297,453 people.
How to read this: 100 squares stand for everyone in Guinea, one square for every 100th person. Count the coloured ones and you have Siguiri's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1935 Guigang China298,077
- 1937 Shengzhou China297,906
- 1938 Xiantao China297,859
- 1939 Karur India297,598
- 1940 Siguiri297,453
- 1941 Pokhara Nepal297,320
- 1942 Coatzacoalcos Mexico297,319
- 1943 Chon Buri Thailand297,276
- 1944 Quy Nhơn Vietnam297,184
In Guinea, 2025
How to read this: the figure in front of a name is where that city stands among the 12,138 cities the UN counted in 2025, and each bar is its people, on one scale per list. Numbers are missing where a city has fewer than 300,000 people and so has no page of its own.
Apparatus
Sources and method
The figures for Siguiri are the UN's own, at five-year steps: an estimate for each of 2000 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 Siguiri 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