| Locality | Post Code |
|---|---|
| Shiro (かほく市) | 929-1177 |
| Sotohisumi (かほく市) | 929-1176 |
| Tada (かほく市) | 929-1112 |
| Takamatsu (かほく市) | 929-1215 |
| Tani (かほく市) | 929-1103 |
| Tozuka (かほく市) | 929-1173 |
| Uchihisumi (かほく市) | 929-1126 |
| Uchitakamatsu (かほく市) | 929-1214 |
| Uke (かほく市) | 929-1121 |
| Unoke (かほく市) | 929-1125 |
| Uwadana (かほく市) | 929-1102 |
| Wakamidori (かほく市) | 929-1205 |
| Yochi (かほく市) | 929-1101 |
| Yokoyama (かほく市) | 929-1105 |