Sejong-daero 21-gil, Jung-gu (7)
| Address | Postal code | Building |
|---|---|---|
| Sejong-daero 21-gil 15 | 04519 | 대한성공회서울대성당 |
| Sejong-daero 21-gil 33 | 04519 | 조선일보사 |
| Sejong-daero 21-gil 39 | 04519 | 사회복지법인 사회복지공동모금회 |
| Sejong-daero 21-gil 53 | 04519 | |
| Sejong-daero 21-gil 65 | 04519 | |
| Sejong-daero 21-gil 67-1 | 04519 | |
| Sejong-daero 21-gil 67-2 | 04519 |