| Samhan Period |
Mahan |
| 346 (King Geunchogo of Baekje) |
Baekje’s territory |
| 396 (King Gwanggaeto of Goguryeo) |
Goguryeo’s territory |
| 475 (the 63rd year of King Jangsu’s reign of Goguryeo) |
Ingbeollo-hyeon |
Yulmok-gun |
| 757 (the 16th year of King Gyeongdeok’s reign of Unified Silla) |
Gogyang-hyeon |
Yuljin-gun |
| 940 (the 23rd year of King Taejo’s reign of Goryeo) |
Geumju |
Gwaju |
| 1443 (the 13rd year of King Taejong’s reign of Joseon) |
Geumcheon-hyeon |
Gwacheon-hyeon |
| 1795 (the 19th year of King Jeongjo’s reign of Joseon) |
Siheung-hyeon |
Gwacheon-hyeon |
| 1895 (the 32nd year of King Gojong’s reign of Joseon) |
Siheung-gun |
Gwacheon-gun |
| March 1, 1914(The Departmental Ordinance of Japanese Government-General of Korea No. 11: District under jurisdiction & the district name’) |
Dong-myeon, Siheung-gun |
Sindong-myeon, Siheung-gun |
| January 1, 1963(Civil Ordinance No. 1172: Law on Administrative District Change in Seoul City’) |
Incorporated into Yeongdeungpo-gu, Seoul City |
| Bongcheon-dong ∙ Sillim-dong (Governed by Gwanak Branch Office) |
Sadang-dong (Governed by Sindong Branch Office) |
| 1973.7.1(Presidential Decree No. 6548) |
Gwanak-gu was separated from Yeongdeungpo-gu and established independently
(Bongcheon-dong, Sillim-dong, Noryangjin-dong, Bon-dong, Sangdo-dong, Sangdo 1-dong, Heukseok-dong,
Dongjak-dong, Sadang-dong, Sindaebang-dong, Daebang-dong, Bangbae-dong, Jamwon-dong, Banpo-dong, Seocho-dong, Yangjae-dong) |
| 1975.10.1(Seoul City Ordinance No 979) |
Redistricting of administrative areas Part of Doksan-dong→Incorporated into Sillim-dong,
Gwanak-gu Daebang-dong, Sindaebang-dong→Incorporated into Yeongdeungpo-gu |
| 1980.4.1(Presidential Decree No. 9630) |
Separated from Dongjak-gu Part of Sadang-dong was renamed to Namhyeon-dong; Part of Dongjak-dong and Sadang-dong were incorporated into Gangnam-gu |
| 1988.5.1(Civil Ordinance No. 4004) |
Upgraded to a district upon the implementation of the local self-governing system |
| 1992.7.1(Seoul City Gwanak-gu Ordinance No. 182) |
Governed 27 administrative dong’s |
| 2008.9.1.(Seoul City Gwanak-gu Ordinance No. 779) |
Changed the names of administrative areas (27 dong’s→21 dong’s) |
