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World Measure
The population almanac240 countries · 31,365 cities · UN WPP 2024
City profile · South Korea · Asia

Ansan-si

Gyeonggi-do · South Korea
City population
623,256
#17
in South Korea
#6
in Gyeonggi-do
#897
worldwide
SeoulAnsan-si
37.324, 126.822 · 30 km from Seoul
City population
623,256
Within the city boundary, not a metro area
Rank in South Korea
#17
of 144 cities of 15,000+
World rank
#897
of 31,365 cities listed
Share of South Korea
1.2%
of the national population

About Ansan-si

At approximately 15 m above sea level, this city of 623,256 lies 30 km from Seoul. It holds the sixth-largest population within Gyeonggi-do and accounts for 1.2% of South Korea's national population. Four cities of 63,040 to 640,890 people sit within 13 km.

This summary is AI-generated from the figures on this page. The figures themselves come from the sources cited beside each value.

Position in South Korea
#17of 144
LargestSmallest
Position in Gyeonggi-do
#6of 28
LargestSmallest

Key Facts

Country
South Korea
Region
Gyeonggi-do
Rank in region
#6of 28
Distance to capital
30 km
to Seoul
Elevation
15 m
Approximate — modelled, not surveyed
Time zone
Asia/Seoul
Coordinates
37.324, 126.822
Record updated
2025-04-01
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 Korea

Closest listed cities by great-circle distance from the city centre.

12KMAnyang-si596K people12KMUiwang63K people12KMGunpo286K people13KMHwaseong-si641K people17KMSuwon1.23M people

Compared with the World's Largest Cities

City-proper population against the fifteen largest cities in the dataset.

  1. Shanghai24.9M
  2. Beijing19M
  3. Shenzhen17.5M
  4. Guangzhou16.1M
  5. Kinshasa16M
  6. Istanbul15.7M
  7. Lagos15.4M
  8. Ho Chi Minh City14M
  9. Chengdu13.6M
  10. Lahore13M
  11. Mumbai12.7M
  12. São Paulo12.4M
  13. Mexico City12.3M
  14. Karachi11.6M
  15. Tianjin11.1M
  16. Ansan-si623K
City-proper figures only. Administrative boundaries differ between countries, so these are not directly comparable to metropolitan-area estimates.
Ansan-si compared with the fifteen largest cities
NameCity population
Shanghai24.9M
Beijing19M
Shenzhen17.5M
Guangzhou16.1M
Kinshasa16M
Istanbul15.7M
Lagos15.4M
Ho Chi Minh City14M
Chengdu13.6M
Lahore13M
Mumbai12.7M
São Paulo12.4M
Mexico City12.3M
Karachi11.6M
Tianjin11.1M
Ansan-si623K

Ansan-si Population FAQ

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.

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 of 15,000 or more listed in South Korea, holding 1.2% of the national population.

Explore

South KoreaAll 144 citiesGyeonggi-do28 cities in the regionCountry profileSouth Korea population & indicators