Map of Masan, South Korea

Masan is a city in Gwangju, South Korea, with a population of about 434,371. It lies at 35.1272°N, 126.8315°E. Masan is about 271 km (169 mi) south of Seoul, the capital. The nearest city on our map is Gwangju, 8 km to the east.

Masan at a glance

Where is Masan?

• The 23rd largest city in South Korea by recorded population.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 47 min on the shortest day to 14 h 31 min on the longest day (around 21 December and 21 June).

Cities near Masan

• Gwangju — 8 km east
• Naju — 15 km southwest
• Hwasun — 16 km southeast
• Jangseong — 19 km north
• Damyang — 25 km northeast
• Yeonggwang — 34 km northwest
• Muan — 36 km southwest
• Koch'ang — 36 km north
• Yeongam — 38 km south
• Boseong — 46 km southeast

Largest cities in Gwangju

• Gwangju — 1,401,235

Largest cities in South Korea

• Seoul — 10,349,312
• Busan — 3,285,147
• Incheon — 3,015,482
• Daegu — 2,365,523
• Daejeon — 1,441,203
• Gwangju — 1,401,235
• Suwon — 1,234,582
• Ulsan — 1,098,421
• Goyang-si — 1,061,752
• Changwon — 1,025,702

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.