Gangnam-gu is one of the 25 gu (local government districts) which make up the city of Seoul South Korea. It is one of the most affluent areas of Seoul and is located in the southeast of the city. It is served by Seoul Subway Line 2 Seoul Subway Line 3 Seoul Subway Line 7 and the Bundang Line. Several popular shopping and entertainment areas are located in Gangnam-gu including Apgujeong the COEX Mall and the area around Gangnam Station.