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Sumgayit, 
Azerbaijan
422,836 people lived in Sumgayit in 2025. It is the 1323rd largest of the world's 12,138 cities, and the 2nd largest in Azerbaijan.
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 Sumgayit'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 Sumgayit grew
Count 10 people in Sumgayit in 1975 and the same count gives 33.7 in 2025.
On the UN's projection it will have 474,427 people in 2050. It passed 250,000 people between 1995 and 2000.
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
Sumgayit through your family’s years
Put in the years your family were born. You’ll see how many people lived in Sumgayit in each of those years, and when each of them turned 30.
Azerbaijan · every city · 2025
Where it is
How to read this: every dot is one of the 22 cities in Azerbaijan in 2025, and a dot's area is how many people live there, the biggest being Baku. The ringed dot in colour is Sumgayit; 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, Sumgayit covered 86 km², and buildings, roads and other built-up land covered 19 km² of it. That is 46 m² of built-up land for each person, about a square 7 by 7 metres. Since 1975, its built-up land has grown to 2.9 times its size, and its people are 3.4 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 Azerbaijan
Its share of Azerbaijan
Of every 100 people in Azerbaijan in 2025, 4 lived in Sumgayit, which is 422,836 people.
How to read this: 100 squares, one for every 100th person in Azerbaijan; the coloured squares live in Sumgayit. The grey rest live in other cities, in towns or in the countryside.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1319 Shivamogga India423,880
- 1320 Deoghar India423,674
- 1321 Jingdezhen China423,386
- 1322 Porto Velho Brazil422,943
- 1323 Sumgayit422,836
- 1324 Shaoguan China422,509
- 1325 Bremen Germany422,414
- 1326 Niigata Japan422,238
- 1327 Jijiga Ethiopia422,225
In Azerbaijan, 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 Sumgayit 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 Sumgayit 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