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Katihar, 
India
430,470 people lived in Katihar in 2025. It is the 1300th largest of the world's 12,138 cities, and the 208th largest in India.
Like every city on this site, Katihar 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 Katihar grew
For every 10 people in Katihar in 1975, there were 28.3 in 2025.
On the UN's projection it will have 526,555 people in 2050. It passed 250,000 people between 1995 and 2000.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: one column every five years, 1975 to 2050; its height is the number of people. Hatched columns are the UN's projection. The thin strip beneath says how sure the UN is of each figure: the stronger the colour, the surer. A blank means the place was not on the UN's list of cities that year.
People · your family's years · 1975 to 2050
Katihar through your family’s years
Put in the years your family were born. You’ll see how many people lived in Katihar in each of those years, and when each of them turned 30.
India · every city · 2025
Where it is
How to read this: Katihar is the dot in colour with a ring around it. The grey dots are the other cities of India in 2025, 2,054 in all, led by New Delhi, each drawn with an area that matches its people. Countries next door are outlines only.
Area and built-up land · km²
How much land it covers
In 2025, Katihar covered 41 km², and buildings, roads and other built-up land covered 6.8 km² of it. That is 16 m² of built-up land for each person, about a square 4 by 4 metres. Since 1975, its built-up land has grown to 3.4 times its size, and its people are 2.8 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 India
Its share of India
Fewer than 1 in every 1,000 people in India lived in Katihar in 2025 — about 1 in 3,448.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1296 Padrauna431,649
- 1297 Kosti Sudan431,504
- 1298 Florence Italy430,806
- 1299 Kisumu Kenya430,532
- 1300 Katihar430,470
- 1301 Chandpur Bangladesh430,144
- 1302 Providence United States429,694
- 1303 Santiago de Cuba Cuba429,537
- 1304 Cheonan-si South Korea428,378
In India, 2025
- 1285 Sambhal435,760
- 1288 Bhilwara434,406
- 1294 Jhusi431,880
- 1296 Padrauna431,649
- 1300 Katihar430,470
- 1307 Khansahib428,041
- 1319 Shivamogga423,880
- 1320 Deoghar423,674
- 1331 Bathinda421,753
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 Katihar 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 Katihar 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