Ko Samui Population 2026
Ko Samui has a population of 50,000, making it the #109 biggest city in 🇹🇭 Thailand, located in Surat Thani. Roughly 0.1% of Thailand's population lives here. It is about 102× smaller than Bangkok, the country's biggest city.
Population (city proper)
50,000
Rank in Thailand
#109
Coordinates
9.54°N, 99.94°E
~8 m elevation · Asia/Bangkok
Distance to capital (Bangkok)
473 km
294 miles, straight line
Other big cities in Surat Thani
| City | Population | Rank in Thailand |
|---|---|---|
| Surat Thani | 132,040 | #24 |
| Tha Kham | 25,810 | #187 |
| Ban Na San | 21,900 | #210 |
Cities near Ko Samui
- Surat Thani132,040 people · ~79 km away
- Tha Kham25,810 people · ~91 km away
- Ban Na San21,900 people · ~103 km away
- Lang Suan16,142 people · ~104 km away
- Nakhon Si Thammarat102,152 people · ~123 km away
- Pak Phanang25,014 people · ~135 km away
FAQ
What is the population of Ko Samui?
Ko Samui has a population of 50,000 (city proper, latest official figure via GeoNames), making it the #109 biggest city in Thailand.
What region is Ko Samui in?
Ko Samui is located in Surat Thani, Thailand.
Is Ko Samui the capital of Thailand?
No, the capital of Thailand is Bangkok, about 473 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
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