In 2023, the population density in South Korea stood at around *** inhabitants per square kilometer, slightly up from *** in the previous year. The nationwide population density has been increasing steadily over the past decades. The highest density was in Seoul, the capital of South Korea, with * people per square kilometer.Â
Urbanization
South Korea was primarily an agricultural nation. In the decades following its independence from Japanese rule in 1945, both the dictatorships and democratic governments that governed South Korea focused on industrialization and modernization of the country. The urban population has grown by about **** million over the past 20 years, while the rural population has fallen by around *** million. In 2023, around ** percent of the population lived in an urban area.
The most populous city Seoul
Seoul’s high population density is not surprising. The capital city is typically grouped with the province of Gyeonggi, which resembles a donut with Seoul at its center, and the metropolitan port city of Incheon, collectively known as the Seoul Capital Area. This is one of the largest metropolitan areas in the world and serves as the political, economic, and cultural center of South Korea. With more than **** millio* residents, half of South Korea’s population lives in this area.
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Statistics Korea. (March 24, 2025). Population density in South Korea from 1970 to 2023 (in inhabitants per square kilometer) [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 15, 2026, from /statistics/756232/south-korea-population-density/
Statistics Korea. "Population density in South Korea from 1970 to 2023 (in inhabitants per square kilometer)." Chart. March 24, 2025. ÌÇÐÄÆÆ½â°æ. Accessed July 15, 2026. /statistics/756232/south-korea-population-density/
Statistics Korea. (2025). Population density in South Korea from 1970 to 2023 (in inhabitants per square kilometer). ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 15, 2026. /statistics/756232/south-korea-population-density/
Statistics Korea. "Population Density in South Korea from 1970 to 2023 (in Inhabitants per Square Kilometer)." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 24 Mar 2025, /statistics/756232/south-korea-population-density/
Statistics Korea, Population density in South Korea from 1970 to 2023 (in inhabitants per square kilometer) ÌÇÐÄÆÆ½â°æ, /statistics/756232/south-korea-population-density/ (last visited July 15, 2026)
Population density in South Korea from 1970 to 2023 (in inhabitants per square kilometer) [Graph], Statistics Korea, March 24, 2025. [Online]. Available: /statistics/756232/south-korea-population-density/