Seodong Population 2026
Seodong has a population of 42,569, making it the #107 biggest city in 🇰🇷 South Korea, located in Jeju-do. Roughly 0.1% of South Korea's population lives here. It is about 243× smaller than Seoul, the country's biggest city.
Population (city proper)
42,569
Rank in South Korea
#107
Coordinates
33.48°N, 126.49°E
~98 m elevation · Asia/Seoul
Distance to capital (Seoul)
456 km
283 miles, straight line
Other big cities in Jeju-do
Cities near Seodong
FAQ
What is the population of Seodong?
Seodong has a population of 42,569 (city proper, latest official figure via GeoNames), making it the #107 biggest city in South Korea.
What region is Seodong in?
Seodong is located in Jeju-do, South Korea.
Is Seodong the capital of South Korea?
No, the capital of South Korea is Seoul, about 456 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.
← All biggest cities in South Korea · South Korea population by year