| Postal/ZIP Codes in Bongwon-Dong, Seodaemun (봉원동) |
03721 |
| Postal/ZIP Codes in Bugahyeon-Dong, Seodaemun (북아현동) |
03746, 03747, 03748, 03749, 03750, … |
| Postal/ZIP Codes in Bukgajwa-Dong, Seodaemun (북가좌동) |
03667, 03668, 03669, 03670, 03671, … |
| Postal/ZIP Codes in Changcheon-Dong, Seodaemun (창천동) |
03722, 03727, 03776, 03777, 03778, … |
| Postal/ZIP Codes in Cheonyeon-Dong, Seodaemun (천연동) |
03734, 03735, 03743, 03744, 03745, … |
| Postal/ZIP Codes in Chungjeongno 2 (I)-Ga, Seodaemun (충정로2가) |
03735, 03736, 03737, 03738, 03740, … |
| Postal/ZIP Codes in Chungjeongno 3 (Sam)-Ga, Seodaemun (충정로3가) |
03737, 03740, 03741, 03742, 03746, … |
| Postal/ZIP Codes in Daehyeon-Dong, Seodaemun (대현동) |
03673, 03760, 03764, 03765, 03766, … |
| Postal/ZIP Codes in Daesin-Dong, Seodaemun (대신동) |
03721, 03722, 03759, 03760, 03765 |
| Postal/ZIP Codes in Hap-Dong, Seodaemun (합동) |
03741 |
| Postal/ZIP Codes in Hongeun-Dong, Seodaemun (홍은동) |
03600, 03601, 03602, 03603, 03604, … |
| Postal/ZIP Codes in Hongje-Dong, Seodaemun (홍제동) |
03617, 03618, 03619, 03620, 03621, … |
| Postal/ZIP Codes in Hyeonjeo-Dong, Seodaemun (현저동) |
03732, 03733 |
| Postal/ZIP Codes in Migeun-Dong, Seodaemun (미근동) |
03738, 03739, 03740, 03741 |
| Postal/ZIP Codes in Naengcheon-Dong, Seodaemun (냉천동) |
03734, 03735, 03745, 03746 |
| Postal/ZIP Codes in Namgajwa-Dong, Seodaemun (남가좌동) |
03665, 03666, 03670, 03671, 03672, … |
| Postal/ZIP Codes in Okcheon-Dong, Seodaemun (옥천동) |
03734, 03743, 03744 |
| Postal/ZIP Codes in Sinchon-Dong, Seodaemun (신촌동) |
03721, 03722, 03727, 03759, 03760, … |
| Postal/ZIP Codes in Yeongcheon-Dong, Seodaemun (영천동) |
03734, 03743, 03744 |
| Postal/ZIP Codes in Yeonhui-Dong, Seodaemun (연희동) |
03643, 03660, 03661, 03695, 03696, … |