Sammu-gil, Singwang-myeon, Hampyeong-gun postal codes (20)
On Sammu-gil in Singwang-myeon, Hampyeong-gun the postal code depends on the building number: numbers 4–79 use 57103, numbers 137-33–214-76 use 57104. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Sammu-gil 4 | 57103 | |
| Sammu-gil 5-1 | 57103 | |
| Sammu-gil 5-2 | 57103 | |
| Sammu-gil 5-4 | 57103 | |
| Sammu-gil 6-1 | 57103 | |
| Sammu-gil 6-5 | 57103 | |
| Sammu-gil 6-9 | 57103 | |
| Sammu-gil 8 | 57103 | |
| Sammu-gil 8-1 | 57103 | |
| Sammu-gil 10 | 57103 | |
| Sammu-gil 36 | 57103 | |
| Sammu-gil 57-23 | 57103 | |
| Sammu-gil 69-58 | 57103 | |
| Sammu-gil 79 | 57103 | |
| Sammu-gil 137-33 | 57104 | |
| Sammu-gil 154-18 | 57104 | |
| Sammu-gil 197-21 | 57104 | |
| Sammu-gil 214-29 | 57104 | |
| Sammu-gil 214-75 | 57104 | |
| Sammu-gil 214-76 | 57104 |