Quick facts
Cheonan overview
Cheonan (orange) and the other large cities of South Korea
Cheonan lies in Chungcheongnam-do in South Korea at 36.81°N, 127.15°E, about 40 m above sea level. The local time zone is Asia/Seoul (UTC+9).
It is smaller than Bucheon-si (850,731) and larger than Hwaseong-si (640,890). 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 86 km away; the nearest large city is Pyeongtaek, 22 km from Cheonan.
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 Cheonan
| City | Distance | Population |
|---|---|---|
| Pyeongtaek Gyeonggi-do | 22 km | 364,694 |
| Sejong Sejong-si | 27 km | 394,630 |
| Cheongju-si North Chungcheong | 35 km | 852,147 |
| Osan Gyeonggi-do | 39 km | 238,788 |
| Hwaseong-si Gyeonggi-do | 54 km | 640,890 |
| Daejeon Daejeon | 55 km | 1,441,203 |
| Suwon Gyeonggi-do | 55 km | 1,234,582 |
| Icheon-si Gyeonggi-do | 59 km | 196,230 |
Largest cities in South Korea
Frequently asked questions
What is the population of Cheonan?
Cheonan has about 658,831 inhabitants according to the latest official census or estimate compiled by GeoNames. This is the city proper; the metropolitan area is larger.
Is Cheonan the capital of South Korea?
No. The capital of South Korea is Seoul (10,349,312 people), about 86 km away. Cheonan is the 14th largest city of the country.
How big is Cheonan compared with the rest of South Korea?
Its 658,831 residents are 1.3% of the 51,579,911 people living in South Korea today. Seoul is larger with 10,349,312 people.
Where is Cheonan?
In Chungcheongnam-do, South Korea, at latitude 36.81 and longitude 127.15, 40 m above sea level. Nearby large cities include Pyeongtaek (22 km), Sejong (27 km), Cheongju-si (35 km).
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Cite or link to this page
Glostats. (2026). Cheonan Population 2026 — South Korea. Retrieved October 20, 2026, from https://glostats.com/cities/south-korea/cheonan/<a href="https://glostats.com/cities/south-korea/cheonan/">Cheonan 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.