What is the population of Ansan-si?
Ansan-si has a city population of 623,256. That is the population within the city's own boundary, not its wider metropolitan area. City population, GeoNames.
City profile · South Korea · Asia
Ansan-si
City population
623,256
#17
in South Korea
#6
in Gyeonggi-do
#897
worldwide
37.324, 126.822 · 30 km from Seoul
About Ansan-si
Ansan-si is a city in Gyeonggi-do, South Korea with a population of 623,256. It is the 17th largest of the 144 cities of 15,000 or more listed in South Korea, and the 897th largest worldwide. It lies 30 km from Seoul.
Key Facts
Country
Region
Rank in region
#6of 28
Coordinates
37.324, 126.822
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.
Compared with the World's Largest Cities
City-proper population against the fifteen largest cities in the dataset.
| Name | City population |
|---|---|
| Shanghai | 24.9M |
| Beijing | 19M |
| Shenzhen | 17.5M |
| Guangzhou | 16.1M |
| Kinshasa | 16M |
| Istanbul | 15.7M |
| Lagos | 15.4M |
| Ho Chi Minh City | 14M |
| Chengdu | 13.6M |
| Lahore | 13M |
| Mumbai | 12.7M |
| São Paulo | 12.4M |
| Mexico City | 12.3M |
| Karachi | 11.6M |
| Tianjin | 11.1M |
| Ansan-si | 623K |
Ansan-si Population FAQ
Where is Ansan-si?
Ansan-si is in Gyeonggi-do, South Korea, 30 km from the capital, Seoul. Its coordinates are 37.324, 126.822.
How big is Ansan-si compared with other cities in South Korea?
It is the 17th largest of the 144 cities listed in South Korea, holding 1.2% of the national population.