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Lop Buri, 
Thailand
378,160 people lived in Lop Buri in 2025. It is the 1500th largest of the world's 12,138 cities, and the 5th largest in Thailand.
This is the UN's built-up area, drawn from satellite pictures and census maps rather than from the city limits, and the two can be a long way apart. The rule behind it.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Lop Buri grew
For every 10 people in Lop Buri in 1995, there were 52.3 in 2025.
On the UN's projection it will have 469,212 people in 2050. It passed 250,000 people between 2015 and 2020. 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: 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
Lop Buri through your family’s years
Put in the years your family were born. You’ll see how many people lived in Lop Buri in each of those years, and when each of them turned 30.
Thailand · every city · 2025
Where it is
How to read this: every dot is one of the 56 cities in Thailand in 2025, and a dot's area is how many people live there, the biggest being Bangkok. The ringed dot in colour is Lop Buri; the grey dots are the rest. The outlines around them are neighbouring countries.
Area and built-up land · km²
How much land it covers
In 2025, Lop Buri covered 110 km², and buildings, roads and other built-up land covered 17 km² of it. That is 45 m² of built-up land for each person, about a square 7 by 7 metres. Since 1995, its built-up land has grown to 4.6 times its size, and its people are 5.2 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 Thailand
Its share of Thailand
Of every 1,000 people in Thailand in 2025, 5 lived in Lop Buri, which is 378,160 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 Lop 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
- 1496 KUNDULUN Nigeria380,118
- 1497 Al-Asafra Egypt379,559
- 1498 Cumana Venezuela379,333
- 1499 Laiwu China379,135
- 1500 Lop Buri378,160
- 1501 Bengkulu Indonesia378,066
- 1502 Tripoli Lebanon377,937
- 1503 Kralpora India377,602
- 1504 Matadi Democratic Republic of the Congo377,297
In Thailand, 2025
- 14 Bangkok18,180,280
- 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: 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 Lop Buri 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 Lop 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