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Chon Buri, 
Thailand
297,276 people lived in Chon Buri in 2025. It is the 1943rd largest of the world's 12,138 cities, and the 6th largest in Thailand.
Like every city on this site, Chon Buri 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 Chon Buri grew
Count 10 people in Chon Buri in 2000 and the same count gives 21.7 in 2025.
On the UN's projection it will have 356,073 people in 2050. It passed 250,000 people between 2000 and 2005. The UN first counts it as a city in 2000, 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
Chon Buri through your family’s years
Put in the years your family were born. You’ll see how many people lived in Chon Buri in each of those years, and when each of them turned 30.
Thailand · every city · 2025
Where it is
How to read this: Chon Buri is the dot in colour with a ring around it. The grey dots are the other cities of Thailand in 2025, 56 in all, led by Bangkok, 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, Chon Buri covered 142 km², and buildings, roads and other built-up land covered 36 km² of it. That is 121 m² of built-up land for each person, about a square 11 by 11 metres. Since 2000, its built-up land has grown to 3 times its size, and its people are 2.2 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 Thailand
Its share of Thailand
Of every 1,000 people in Thailand in 2025, 4 lived in Chon Buri, which is 297,276 people.
How to read this: 1,000 squares stand for everyone in Thailand, one square for every 1,000th person. Count the coloured ones and you have Chon Buri's share; the grey remainder live somewhere else in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1939 Karur India297,598
- 1940 Siguiri Guinea297,453
- 1941 Pokhara Nepal297,320
- 1942 Coatzacoalcos Mexico297,319
- 1943 Chon Buri297,276
- 1944 Quy Nhơn Vietnam297,184
- 1945 Smolensk Russia297,177
- 1946 Al-Mahmudiya Egypt297,143
- 1947 Attingal India297,140
In Thailand, 2025
- 864 Chiang Mai626,629
- 1387 Hat Yai407,059
- 1465 Phuket389,376
- 1500 Lop Buri378,160
- 1943 Chon Buri297,276
- 2527 Nakhon Pathom232,416
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 Chon Buri are the UN's own, at five-year steps: an estimate for each of 2000 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 Chon Buri 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