Map of Santyoku, South Korea

Santyoku is a city in Gangwon-do, South Korea, with a population of about 42,145. It lies at 37.4406°N, 129.1708°E. Santyoku is about 194 km (120 mi) east of Seoul, the capital. The nearest city on our map is Donghae City, 13 km to the northwest.

Santyoku at a glance

Where is Santyoku?

• The 9th largest city in Gangwon-do on this site.
• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 9 h 35 min on the shortest day to 14 h 45 min on the longest day (around 21 December and 21 June).

Cities near Santyoku

• Donghae City — 13 km northwest
• T’aebaek — 34 km southwest
• Gangneung — 44 km northwest
• Yeongju — 84 km southwest
• Sokcho — 99 km northwest
• Andong — 105 km south
• Yecheon — 108 km southwest
• Kosong — 121 km northwest
• Mungyeong — 128 km southwest
• Kunwi — 144 km south

Largest cities in Gangwon-do

• Wŏnju — 332,849
• Chuncheon — 284,855
• Gangneung — 208,161
• Donghae City — 101,128
• Sokcho — 81,164
• Hongch’ŏn — 75,251
• Kosong — 62,446
• T’aebaek — 48,962
• Cheorwon — 40,646

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.