Gangchon-gil, Gosu-myeon, Gochang-gun postal codes (19)
All 19 buildings on Gangchon-gil in Gosu-myeon, Gochang-gun use postal code 56447. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Gangchon-gil 4 | 56447 | |
| Gangchon-gil 4-1 | 56447 | |
| Gangchon-gil 4-3 | 56447 | |
| Gangchon-gil 4-4 | 56447 | |
| Gangchon-gil 4-5 | 56447 | |
| Gangchon-gil 6 | 56447 | |
| Gangchon-gil 8 | 56447 | |
| Gangchon-gil 10 | 56447 | |
| Gangchon-gil 12 | 56447 | |
| Gangchon-gil 14 | 56447 | |
| Gangchon-gil 16 | 56447 | |
| Gangchon-gil 21 | 56447 | |
| Gangchon-gil 22 | 56447 | |
| Gangchon-gil 23 | 56447 | |
| Gangchon-gil 24 | 56447 | |
| Gangchon-gil 25 | 56447 | |
| Gangchon-gil 27 | 56447 | |
| Gangchon-gil 29 | 56447 | |
| Gangchon-gil 30 | 56447 |