Map of Daejeon, South Korea

Daejeon is the administrative centre of Daejeon, South Korea, with a population of about 1,441,203. It lies at 36.3491°N, 127.3849°E. Daejeon is about 140 km (87 mi) south of Seoul, the capital. The nearest city on our map is Okcheon, 17 km to the east.

Daejeon at a glance

Where is Daejeon?

• The 5th largest city in South Korea by recorded population.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 41 min on the shortest day to 14 h 38 min on the longest day (around 21 December and 21 June).

Cities near Daejeon

• Okcheon — 17 km east
• Gongju — 26 km northwest
• Sejong — 28 km north
• Nonsan — 31 km southwest
• Cheongju-si — 33 km north
• Yeongdong — 40 km southeast
• Buyeo — 43 km west
• Cheonan — 55 km north
• Chinch'ŏn — 57 km north
• Asan — 59 km northwest

Largest cities in South Korea

• Seoul — 10,349,312
• Busan — 3,285,147
• Incheon — 3,015,482
• Daegu — 2,365,523
• Gwangju — 1,401,235
• Suwon — 1,234,582
• Ulsan — 1,098,421
• Goyang-si — 1,061,752
• Changwon — 1,025,702
• Seongnam-si — 914,832

Map of South Korea and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.