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Constanța, 
Romania
268,757 people lived in Constanța in 2025. It is the 2169th largest of the world's 12,138 cities, and the 5th largest in Romania.
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 Constanța grew
Count 10 people in Constanța in 1975 and the same count gives 12.4 in 2025.
On the UN's projection it will have 247,357 people in 2050. It passed 250,000 people between 1975 and 1980.
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
Constanța through your family’s years
Put in the years your family were born. You’ll see how many people lived in Constanța in each of those years, and when each of them turned 30.
Romania · every city · 2025
Where it is
How to read this: Constanța is the dot in colour with a ring around it. The grey dots are the other cities of Romania in 2025, 29 in all, led by Bucharest, 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, Constanța covered 74 km², and buildings, roads and other built-up land covered 15 km² of it. That is 57 m² of built-up land for each person, about a square 8 by 8 metres. Since 1975, its built-up land has grown by 75%, and its people have grown by 24%.
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 Romania
Its share of Romania
Of every 100 people in Romania in 2025, 1 lived in Constanța, which is 268,757 people.
How to read this: 100 squares stand for everyone in Romania, one square for every 100th person. Count the coloured ones and you have Constanța's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 2165 Beldanga India269,051
- 2166 Dodoma Tanzania269,047
- 2167 Patahi India268,862
- 2168 Vologda Russia268,759
- 2169 Constanța268,757
- 2170 Chhatarpur India268,598
- 2171 Muzaffarabad Pakistan268,448
- 2174 Ternate Indonesia267,842
- 2176 Bellevue United States267,696
In Romania, 2025
- 262 Bucharest1,909,536
- 1801 Timișoara319,240
- 1848 Cluj-Napoca310,650
- 2104 Iași275,840
- 2169 Constanța268,757
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 Constanța 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 Constanța 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