South Korea Has the OECD’s Highest Capital-Region Population Concentration—Why Does Seoul Keep Pulling People In?
South Korea is moving in the opposite direction from many advanced economies. In several OECD countries, high housing costs and the rise of remote work have encouraged people to leave capital cities and relocate to regional or mid-sized urban areas. South Korea, however, continues to experience a powerful concentration of population, jobs and opportunity in Seoul and the surrounding capital region. According to an analysis by Japan’s Nikkei based on the United Nations’ World Urbanization Prospects 2025 , 43.3 percent of South Korea’s population lived in the capital region in 2023—the highest share among the 37 OECD countries included in the analysis. The figure was reportedly up from 42.1 percent in 2010, indicating that South Korea’s concentration problem has continued to deepen. The United Nations’ 2025 revision provides country profiles, data tables, maps and technical information on global urbanization and city-population trends. AI generated image Other advanced economie...