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Cilacap, 
Indonesia
544,657 people lived in Cilacap in 2025. It is the 1010th largest of the world's 12,138 cities, and the 37th largest in Indonesia.
That figure counts the whole built-up area, not the area Cilacap 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 Cilacap grew
Where Cilacap had 10 people in 1975, it had 7.4 in 2025, fewer than it started with.
On the UN's projection it will have 475,107 people in 2050.
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
Cilacap through your family’s years
Put in the years your family were born. You’ll see how many people lived in Cilacap 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). Cilacap 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, Cilacap covered 101 km², and buildings, roads and other built-up land covered 17 km² of it. That is 30 m² of built-up land for each person, about a square 6 by 6 metres. Since 1975, its built-up land has grown to 2.5 times its size, and its people have fallen by 26%.
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 Indonesia
Its share of Indonesia
Of every 1,000 people in Indonesia in 2025, 2 lived in Cilacap, which is 544,657 people.
How to read this: shrink Indonesia to 1,000 people and this is what you get. The coloured squares are the ones who would live in Cilacap; 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
- 1006 Meishan China546,811
- 1007 Huangdao District China545,983
- 1008 Silchar India544,936
- 1009 Wanzhou China544,748
- 1010 Cilacap544,657
- 1011 Hisar India543,775
- 1012 Huazhou China543,709
- 1013 Bulandshahr India543,659
- 1014 Khabarovsk Russia543,422
In Indonesia, 2025
- 888 Cipanas610,177
- 963 Selong568,139
- 987 Ambon555,651
- 1002 Purwakarta549,480
- 1010 Cilacap544,657
- 1021 Kendal541,030
- 1026 Kupang538,998
- 1055 Jember522,844
- 1082 Gorontalo513,078
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 Cilacap 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 Cilacap 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