Seongdong District

Seongdong
성동구
성동구 · 城東區
Seongdong District skyline from Hanyang University Seoul campus
Buildings near the Ttukseom station
View of the district from Maebong mountain
Location of Seongdong District in Seoul
Coordinates: 37°33′48″N 127°02′13″E / 37.56333°N 127.03694°E / 37.56333; 127.03694
CountrySouth Korea
RegionSudogwon
Special CitySeoul
Administrative dong20
Government
  BodySeongdong-gu Council
  MayorChong Won-oh (Democratic)
  MNAs
Area
  Total
16.85 km2 (6.51 sq mi)
Population
 (October, 2022, September 2024)
  Total
275,403
  Density16,000/km2 (42,000/sq mi)
Time zoneUTC+9 (Korea Standard Time)
Postal code
04700 – 04899
Area code(s)+82-2-2200,400
WebsiteSeongdong District official website

Seongdong District (Korean: 성동구; RR: Seongdong-gu) is one of the 25 districts which make up the city of Seoul, South Korea. It is situated on the north bank of the Han River. It is divided into 20 dong (neighbourhoods). The district is home to Hanyang University, one of the most prestigious universities in South Korea.