Seohaean Expressway, Hampyeong-eup, Hampyeong-gun postal codes (3)
On Seohaean Expressway in Hampyeong-eup, Hampyeong-gun the postal code depends on the building number: number 31 use 57142, number 31-1 use 57137, number 34 use 57135. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Seohaean Expressway 31 | 57142 | 함평천지휴게소(목포방향) |
| Seohaean Expressway 31-1 | 57137 | 함평천지휴게소 주유소(목포방향) |
| Seohaean Expressway 34 | 57135 |