Seoul Yangyang Expressway, Hwachon-myeon, Hongcheon-gun postal codes (4)
All 4 buildings on Seoul Yangyang Expressway in Hwachon-myeon, Hongcheon-gun use postal code 25159. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Seoul Yangyang Expressway 83 | 25159 | |
| Seoul Yangyang Expressway 83-1 | 25159 | |
| Seoul Yangyang Expressway 84 | 25159 | |
| Seoul Yangyang Expressway 84-1 | 25159 |