Quick facts
Ansan-si overview
Ansan-si (orange) and the other large cities of South Korea
Ansan-si lies in Gyeonggi-do in South Korea at 37.32°N, 126.82°E, about 15 m above sea level. The local time zone is Asia/Seoul (UTC+9).
It is smaller than Jeonju (638,421) and larger than Anyang-si (595,644). The largest city in South Korea is Seoul with 10,349,312 people; the capital, Seoul, has 10,349,312.
The national capital, Seoul, is about 30 km away; the nearest large city is Anyang-si, 12 km from Ansan-si.
South Korea as a whole has a live population of 51,579,911 (-0.1% a year) and ranks #31 of 238 countries — see the South Korea population page for the full statistics and the South Korea atlas for provinces, terrain and society maps.
Cities near Ansan-si
| City | Distance | Population |
|---|---|---|
| Anyang-si Gyeonggi-do | 12 km | 595,644 |
| Gunpo Gyeonggi-do | 12 km | 286,485 |
| Hwaseong-si Gyeonggi-do | 13 km | 640,890 |
| Suwon Gyeonggi-do | 17 km | 1,234,582 |
| Gwangmyeong Gyeonggi-do | 18 km | 357,545 |
| Incheon Incheon | 18 km | 3,015,482 |
| Bucheon-si Gyeonggi-do | 20 km | 850,731 |
| Osan Gyeonggi-do | 29 km | 238,788 |
Largest cities in South Korea
Frequently asked questions
What is the population of Ansan-si?
Ansan-si has about 623,256 inhabitants according to the latest official census or estimate compiled by GeoNames. This is the city proper; the metropolitan area is larger.
Is Ansan-si the capital of South Korea?
No. The capital of South Korea is Seoul (10,349,312 people), about 30 km away. Ansan-si is the 17th largest city of the country.
How big is Ansan-si compared with the rest of South Korea?
Its 623,256 residents are 1.2% of the 51,579,911 people living in South Korea today. Seoul is larger with 10,349,312 people.
Where is Ansan-si?
In Gyeonggi-do, South Korea, at latitude 37.32 and longitude 126.82, 15 m above sea level. Nearby large cities include Anyang-si (12 km), Gunpo (12 km), Hwaseong-si (13 km).
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Cite or link to this page
Glostats. (2026). Ansan-si Population 2026 — South Korea. Retrieved October 20, 2026, from https://glostats.com/cities/south-korea/ansan-si/<a href="https://glostats.com/cities/south-korea/ansan-si/">Ansan-si Population 2026 — South Korea</a> — GlostatsFigures on this page may be quoted, charted or republished as long as the page is credited with a link. Terms · Download the data as CSV · Embed a live counter.
City populations are GeoNames figures (CC BY 4.0): the latest official census or estimate for the city proper — the municipality, not the wider metropolitan area — so they can differ from "metro area" numbers you see elsewhere. Country populations are live Glostats estimates from the UN World Population Prospects. Distances are great-circle distances between city centres. Page generated 2026-10-20. More about our data.