Ganghwanam-ro 638beon-gil, Yangdo-myeon, Ganghwa-gun postal codes (3)
All 3 buildings on Ganghwanam-ro 638beon-gil in Yangdo-myeon, Ganghwa-gun use postal code 23057. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Ganghwanam-ro 638beon-gil 5 | 23057 | |
| Ganghwanam-ro 638beon-gil 8 | 23057 | |
| Ganghwanam-ro 638beon-gil 12 | 23057 |