Unsan-gil, Seongnae-myeon, Gochang-gun postal codes (31)
All 31 buildings on Unsan-gil in Seongnae-myeon, Gochang-gun use postal code 56420. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Unsan-gil 5-5 | 56420 | |
| Unsan-gil 8 | 56420 | |
| Unsan-gil 9 | 56420 | 운산마을회관 |
| Unsan-gil 15-1 | 56420 | |
| Unsan-gil 15-3 | 56420 | |
| Unsan-gil 15-5 | 56420 | |
| Unsan-gil 15-7 | 56420 | |
| Unsan-gil 15-8 | 56420 | |
| Unsan-gil 19 | 56420 | |
| Unsan-gil 25-2 | 56420 | |
| Unsan-gil 25-7 | 56420 | |
| Unsan-gil 25-8 | 56420 | |
| Unsan-gil 25-9 | 56420 | |
| Unsan-gil 25-11 | 56420 | |
| Unsan-gil 25-14 | 56420 | |
| Unsan-gil 25-16 | 56420 | |
| Unsan-gil 25-18 | 56420 | |
| Unsan-gil 25-20 | 56420 | |
| Unsan-gil 25-21 | 56420 | |
| Unsan-gil 25-31 | 56420 | |
| Unsan-gil 27 | 56420 | |
| Unsan-gil 29-1 | 56420 | |
| Unsan-gil 29-2 | 56420 | |
| Unsan-gil 29-4 | 56420 | |
| Unsan-gil 29-5 | 56420 | |
| Unsan-gil 29-6 | 56420 | |
| Unsan-gil 29-14 | 56420 | |
| Unsan-gil 29-16 | 56420 | |
| Unsan-gil 30 | 56420 | |
| Unsan-gil 37 | 56420 | |
| Unsan-gil 39 | 56420 |