| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Horoka, Hokkaido (幌加) | 080-1402 |
| Postal/ZIP Codes in Kamiotofuke, Hokkaido (上音更) | 080-1407 |
| Postal/ZIP Codes in Kamishihoro, Hokkaido (上士幌) | 080-1408 |
| Postal/ZIP Codes in Kuroishidaira, Hokkaido (黒石平) | 080-1404 |
| Postal/ZIP Codes in Mitsumata, Hokkaido (三股) | 080-1401 |
| Postal/ZIP Codes in Nukabiragensenkyo, Hokkaido (ぬかびら源泉郷) | 080-1403 |
| Postal/ZIP Codes in Oribe, Hokkaido (居辺) | 080-1406 |
| Postal/ZIP Codes in Others, Hokkaido (その他) | 080-1400 |
| Postal/ZIP Codes in Shimizudani, Hokkaido (清水谷) | 080-1405 |