Topics
Mongo, 
Chad
223,205 people lived in Mongo in 2025. It is the 2647th largest of the world's 12,138 cities, and the 5th largest in Chad.
Like every city on this site, Mongo is counted as a built-up area seen from above rather than as a city government's territory. Why that changes the number.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Mongo grew
Where Mongo had 10 people in 1975, it had 43.7 in 2025.
On the UN's projection it will have 346,384 people in 2050. On the UN's projection it passes 250,000 people between 2030 and 2035.
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
Mongo through your family’s years
Put in the years your family were born. You’ll see how many people lived in Mongo in each of those years, and when each of them turned 30.
Chad · every city · 2025
Where it is
How to read this: Chad and its 37 cities in 2025, each a dot whose area is its number of people (the largest is N'Djaména). Mongo 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, Mongo covered 17 km², and buildings, roads and other built-up land covered 2.3 km² of it. That is 10 m² of built-up land for each person, about a square 3 by 3 metres. Since 2000, its built-up land has grown to 2.3 times its size, and its people are 2.1 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 Chad
Its share of Chad
Of every 100 people in Chad in 2025, 1 lived in Mongo, which is 223,205 people.
How to read this: shrink Chad to 100 people and this is what you get. The coloured squares are the ones who would live in Mongo; 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
- 2630 Ramgarh India224,417
- 2632 Navoiy Uzbekistan224,363
- 2639 Habiganj Bangladesh223,874
- 2641 Songea Tanzania223,567
- 2647 Mongo223,205
- 2648 Ahmedpur East Pakistan223,056
- 2649 Buea Cameroon222,996
- 2652 Sambrial Pakistan222,828
- 2657 Toba Tek Singh Pakistan222,349
In Chad, 2025
- 257 N'Djaména1,934,909
- 1254 Abéché443,793
- 2063 Moundou281,943
- 2096 Sarh276,978
- 2647 Mongo223,205
- 2795 Am Timan212,167
- 3588 Faya-Largeau168,302
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 Mongo 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 Mongo 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