City profile · South Korea · Asia
Osan
City population
238,788
#41
in South Korea
#13
in Gyeonggi-do
#2,405
worldwide
37.152, 127.071 · 47 km from Seoul
About Osan
Osan is a city in Gyeonggi-do, South Korea with a population of 238,788. It is the 41st largest of the 144 cities of 15,000 or more listed in South Korea, and the 2,405th largest worldwide. It lies 47 km from Seoul.
Key Facts
Country
Region
Rank in region
#13of 28
Coordinates
37.152, 127.071
Record updated
1 April 2025
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Nearby Cities
All 144 in South KoreaClosest listed cities by great-circle distance from the city centre.