| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Honcho (歌志内市) | 073-0403 |
| Postal/ZIP Codes in Kamiuta (歌志内市) | 073-0401 |
| Postal/ZIP Codes in Kamoi (歌志内市) | 073-0405 |
| Postal/ZIP Codes in Kashin (歌志内市) | 073-0404 |
| Postal/ZIP Codes in Monju (歌志内市) | 073-0407 |
| Postal/ZIP Codes in Nakamura (歌志内市) | 073-0406 |
| Postal/ZIP Codes in Others (歌志内市) | 073-0400 |
| Postal/ZIP Codes in Toko (歌志内市) | 073-0402 |