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Mersin, 
Türkiye
750,396 people lived in Mersin in 2025. It is the 715th largest of the world's 12,138 cities, and the 11th largest in Türkiye.
That figure counts the whole built-up area, not the area Mersin governs, so it may be far from the number the city publishes about itself. How the UN measures a city.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Mersin grew
For every 10 people in Mersin in 1975, there were 43.6 in 2025.
On the UN's projection it will have 788,174 people in 2050. It passed 250,000 people between 1980 and 1985.
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
Mersin through your family’s years
Put in the years your family were born. You’ll see how many people lived in Mersin in each of those years, and when each of them turned 30.
Türkiye · every city · 2025
Where it is
How to read this: Türkiye and its 177 cities in 2025, each a dot whose area is its number of people (the largest is Istanbul). Mersin 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, Mersin covered 120 km², and buildings, roads and other built-up land covered 27 km² of it. That is 36 m² of built-up land for each person, about a square 6 by 6 metres. Since 1975, its built-up land has grown to 3.1 times its size, and its people are 4.4 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 Türkiye
Its share of Türkiye
Of every 1,000 people in Türkiye in 2025, 9 lived in Mersin, which is 750,396 people.
How to read this: shrink Türkiye to 1,000 people and this is what you get. The coloured squares are the ones who would live in Mersin; the grey ones are everybody else, in other cities, in towns and out in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 711 Xingtai China754,483
- 712 Kalaburagi India753,963
- 713 Puyang China753,625
- 714 Jiaxing China751,156
- 715 Mersin750,396
- 716 Thessaloniki Greece749,840
- 717 Dortmund Germany748,106
- 718 Yichun China745,754
- 719 Damietta Egypt743,111
In Türkiye, 2025
- 448 Sincan1,149,921
- 542 Konya959,484
- 585 Kayseri882,238
- 694 Eskisehir766,333
- 715 Mersin750,396
- 723 Şanlıurfa739,807
- 729 Kocaeli737,380
- 825 Diyarbakir660,826
- 918 Samsun594,089
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 Mersin 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 Mersin 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