Sejong-daero 21-gil, Jung-gu (11)
| Address | Postal code | Building |
|---|---|---|
| Sejong-daero 21-gil 22 | 04519 | 태성빌딩 |
| Sejong-daero 21-gil 30 | 04519 | 조선일보사건물 |
| Sejong-daero 21-gil 40 | 04519 | |
| Sejong-daero 21-gil 48 | 04519 | 광안빌딩 |
| Sejong-daero 21-gil 49 | 04519 | 오양수산빌딩 |
| Sejong-daero 21-gil 52 | 04519 | 조선일보광화문빌딩 |
| Sejong-daero 21-gil 55 | 04519 | |
| Sejong-daero 21-gil 58 | 04519 | |
| Sejong-daero 21-gil 61 | 04519 | |
| Sejong-daero 21-gil 63 | 04519 | |
| Sejong-daero 21-gil 67 | 04519 |