Seongdong District
Seongdong District is one of the 25 gu 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.Administrative divisions
Seongdong District consists of 20 administrative dongs
Railways
;*Jungang Line
;;* ← Wangsimni ─ Eungbong ─ Oksu →
;*Bundang Line
;;*Wangsimni ─ Seoul Forest →
;*Seoul Underground Line 2
;;* ← Sangwangsimni ─ Wangsimni ─ Hanyang University ─ Ttukseom ─ Seongsu →
;*Seoul Underground Branch for Sinseol-dong of Line 2
;;*Seongsu ─ Yongdap ─ Sindap →
;*Seoul Underground Line 3
;;* ← Geumho ─ Oksu →
;*Seoul Underground Line 5
;;* ← Singeumho ─ Haengdang─ Wangsimni ─ Majang →History
When Seoul was expanding outward on its size, many parts of Gyeonggi Province were merged to Seongdong District. However, due to its extraordinarily huge size, Seoul Metropolitan Government divided the district into 5, and made Seongdong District cede some part of the district to Jung District. Yeongdeungpo District, Seodaemun District, Seongbuk District, and Dongdaemun District underwent similar changes.Sister cities