South Korea’s department store market is becoming sharply polarized, with Shinsegae Gangnam and Lotte Department Store Jamsil each positioned to exceed ₩4 trillion (approximately $2.9 billion) in annual transaction volume this year. Shinsegae Gangnam recorded ₩3.6717 trillion last year, while Lotte Jamsil reached ₩3.301 trillion, and both reported or are estimated to have achieved more than 20% growth in the first half of this year. Their simultaneous crossing of the threshold would be a first in South Korean department store history. Foreign consumer spending is a major driver: combined foreign customer sales at Lotte, Shinsegae and Hyundai Department Store reached ₩1.72 trillion in the first half of this year, while sales at Lotte’s main branch and The Hyundai Seoul rose 140% and 134%, respectively. Growth is concentrating in tourist-accessible, affluent districts such as Myeongdong, Jamsil, Yeouido and Gangnam. At the other end of the market, stores including Lotte Masan, Grand Ilsan, Hyundai D-Cube City and Lotte Bundang have closed, while other properties are being sold or considered for redevelopment. Hanwha Galleria is reviewing options including the sale of Daejeon Timeworld, despite the store ranking second among Galleria’s five locations by last year’s transaction volume. The top 10 stores generated 49.8% of the ₩40.4402 trillion total recorded by 65 major department stores last year, up from about 42% in 2021. Operators are responding by directing capital toward large hub stores, renovating leading locations and expanding destination-style retail that combines shopping with dining, culture and entertainment. Regional stores remain constrained by population decline, aging and youth outmigration, reinforcing a shift from expanding store counts to concentrating investment in a smaller number of dominant locations.