Daegu (대구, 大邱), formerly romanized as Taegu and officially known as the Daegu Metropolitan City, is South Korea's fourth largest city (after Seoul, Busan, and Incheon), and the third largest metropolitan area in the nation, with over 2.5 million residents. Daegu is in southeastern Korea, about 80 km (50 miles) from the seacoast, near the Geumho River and its mainstream, Nakdong River in Gyeongsang-do. : P70 : P8