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Delduar, 
Bangladesh
163,064 people lived in Delduar in 2025. It is the 3712th largest of the world's 12,138 cities, and the 86th largest in Bangladesh.
That figure counts the whole built-up area, not the area Delduar 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 Delduar grew
Count 10 people in Delduar in 2005 and the same count gives 26 in 2025.
On the UN's projection it will have 311,018 people in 2050. On the UN's projection it passes 250,000 people between 2035 and 2040. The UN first counts it as a city in 2005, when it passed 50,000 people.
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
Delduar through your family’s years
Put in the years your family were born. You’ll see how many people lived in Delduar in each of those years, and when each of them turned 30.
Bangladesh · every city · 2025
Where it is
How to read this: Bangladesh and its 233 cities in 2025, each a dot whose area is its number of people (the largest is Dhaka). Delduar 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, Delduar covered 78 km², and buildings, roads and other built-up land covered 3.8 km² of it. That is 23 m² of built-up land for each person, about a square 5 by 5 metres. Since 2010, its built-up land has grown to 3.8 times its size, and its people are 2.5 times as many.
How to read this: pale is the whole of the city's land; the stronger square inside it is what is actually built on. The three are drawn to the same scale, so a larger square really is more land, and hatching means the year is the UN's projection rather than a count.
Of every 100 people in Bangladesh
Its share of Bangladesh
Of every 1,000 people in Bangladesh in 2025, 1 lived in Delduar, which is 163,064 people.
How to read this: 1,000 squares stand for everyone in Bangladesh, one square for every 1,000th person. Count the coloured ones and you have Delduar's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 3680 Iksan-si South Korea164,566
- 3687 Embu Kenya164,283
- 3695 Durame Ethiopia163,896
- 3696 Cazombo Angola163,870
- 3712 Delduar163,064
- 3713 Kawm Ombo Egypt162,984
- 3721 Samarbagh Pakistan162,603
- 3726 Mihtarlam Afghanistan162,346
- 3740 Fenchuganj161,718
In Bangladesh, 2025
- 3538 Beanibazar171,417
- 3560 Shahrasti169,908
- 3611 Ulipur167,347
- 3667 Akhaura165,093
- 3712 Delduar163,064
- 3740 Fenchuganj161,718
- 4569 Rajoir133,428
- 5613 Gouripur109,980
- 5849 Bhuapur105,501
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 Delduar are the UN's own, at five-year steps: an estimate for each of 2005 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 Delduar 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