Seongnaman-gil, Sillim-myeon, Gochang-gun postal codes (17)
All 17 buildings on Seongnaman-gil in Sillim-myeon, Gochang-gun use postal code 56423. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Seongnaman-gil 1 | 56423 | |
| Seongnaman-gil 3 | 56423 | |
| Seongnaman-gil 3-1 | 56423 | |
| Seongnaman-gil 4 | 56423 | |
| Seongnaman-gil 7 | 56423 | |
| Seongnaman-gil 8-3 | 56423 | |
| Seongnaman-gil 9 | 56423 | |
| Seongnaman-gil 10 | 56423 | |
| Seongnaman-gil 11-2 | 56423 | |
| Seongnaman-gil 11-5 | 56423 | |
| Seongnaman-gil 11-6 | 56423 | |
| Seongnaman-gil 11-7 | 56423 | |
| Seongnaman-gil 11-13 | 56423 | |
| Seongnaman-gil 11-15 | 56423 | |
| Seongnaman-gil 13 | 56423 | |
| Seongnaman-gil 17 | 56423 | |
| Seongnaman-gil 18 | 56423 |