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Bontang, 
Indonesia
145,118 people lived in Bontang in 2025. It is the 4208th largest of the world's 12,138 cities, and the 141st largest in Indonesia.
That figure counts the whole built-up area, not the area Bontang 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 Bontang grew
For every 10 people in Bontang in 1995, there were 26.3 in 2025.
On the UN's projection it will have 323,698 people in 2050. On the UN's projection it passes 250,000 people between 2040 and 2045. The UN first counts it as a city in 1995, when it passed 50,000 people.
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
Bontang through your family’s years
Put in the years your family were born. You’ll see how many people lived in Bontang in each of those years, and when each of them turned 30.
Indonesia · every city · 2025
Where it is
How to read this: Indonesia and its 389 cities in 2025, each a dot whose area is its number of people (the largest is Jakarta). Bontang 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, Bontang covered 26 km², and buildings, roads and other built-up land covered 5.0 km² of it. That is 34 m² of built-up land for each person, about a square 6 by 6 metres. Since 1995, its built-up land has grown by 52%, and its people are 2.6 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 Indonesia
Its share of Indonesia
Of every 1,000 people in Indonesia in 2025, 1 lived in Bontang, which is 145,118 people.
How to read this: 1,000 squares stand for everyone in Indonesia, one square for every 1,000th person. Count the coloured ones and you have Bontang's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 4103 Suncheon-si South Korea147,975
- 4117 Mukanga Democratic Republic of the Congo147,526
- 4118 Baffa Pakistan147,524
- 4131 Garhi Habibullah Pakistan147,308
- 4208 Bontang145,118
- 4221 Buligenyi Uganda144,692
- 4275 Abu Huminus Egypt142,823
- 4282 Kribi Cameroon142,534
- 4293 Amrit Egypt142,164
In Indonesia, 2025
- 3232 Jayapura186,856
- 3238 Bangkinang186,431
- 3258 Biak Kota184,918
- 4014 Tanjung Pinang150,872
- 4208 Bontang145,118
- 7666 Bandar Seri Bentan81,340
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 Bontang are the UN's own, at five-year steps: an estimate for each of 1995 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 Bontang 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