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Biskra, 
Algeria
300,313 people lived in Biskra in 2025. It is the 1912th largest of the world's 12,138 cities, and the 11th largest in Algeria.
That figure counts the whole built-up area, not the area Biskra 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 Biskra grew
Count 10 people in Biskra in 1975 and the same count gives 45.9 in 2025.
On the UN's projection it will have 348,558 people in 2050. It passed 250,000 people between 2015 and 2020.
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
Biskra through your family’s years
Put in the years your family were born. You’ll see how many people lived in Biskra in each of those years, and when each of them turned 30.
Algeria · every city · 2025
Where it is
How to read this: every dot is one of the 109 cities in Algeria in 2025, and a dot's area is how many people live there, the biggest being Algiers. The ringed dot in colour is Biskra; 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, Biskra covered 47 km², and buildings, roads and other built-up land covered 11 km² of it. That is 37 m² of built-up land for each person, about a square 6 by 6 metres. Since 1975, its built-up land has grown to 3.4 times its size, and its people are 4.6 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 Algeria
Its share of Algeria
Of every 1,000 people in Algeria in 2025, 6 lived in Biskra, which is 300,313 people.
How to read this: 1,000 squares stand for everyone in Algeria, one square for every 1,000th person. Count the coloured ones and you have Biskra's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1908 Singaraja Indonesia300,490
- 1909 Shaistaganj Bangladesh300,465
- 1910 Sirsa India300,414
- 1911 Szczecin Poland300,314
- 1912 Biskra300,313
- 1913 Orizaba Mexico300,041
- 1914 Lublin Poland300,013
- 1915 Merca Somalia299,906
- 1916 Caruaru Brazil299,805
In Algeria, 2025
- 1168 Annaba474,367
- 1566 Batna366,415
- 1636 Setif349,825
- 1898 Tlemcen301,980
- 1912 Biskra300,313
- 2109 Koléa274,748
- 2197 El Oued265,408
- 2235 Sidi Bel Abbes261,103
- 2288 Skikda255,379
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 Biskra 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 Biskra 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