37 33 ′ 0 ″ n and126 59 ′ 0 ″ E. Gangnam District is an administrative district of Seoul, the capital of South Korea, which is located to the south of the Han River. This area is an important business district in Seoul. South Korea covers an area of 605.77 square kilometers, including 298.04 square kilometers in Jiangbei, accounting for 49.2% of the total area, and 307.73 square kilometers in Jiangnan, accounting for 50.8% of the total area. The best point of the city is 30.3 kilometers from north to south and 36.78 kilometers from east to west.