| Locality | Post Code |
|---|---|
| Gamata Tamada (平川市) | 036-0232 |
| Gamata Toyota (平川市) | 036-0232 |
| Gamata Toyotomi (平川市) | 036-0232 |
| Hara Kamihara (平川市) | 036-0243 |
| Hara Kitahara (平川市) | 036-0243 |
| Hara Ono (平川市) | 036-0243 |
| Harata Imai (平川市) | 036-0144 |
| Harata Inamoto (平川市) | 036-0144 |
| Harata Muramoto (平川市) | 036-0144 |
| Harata Sawata (平川市) | 036-0144 |
| Hinuma Ipponyanagi (平川市) | 036-0233 |
| Hinuma Kawarada (平川市) | 036-0233 |
| Hinuma Shimofukuro (平川市) | 036-0233 |
| Hinuma Shimokawara (平川市) | 036-0233 |
| Hinuma Sumomoda (平川市) | 036-0233 |
| Hinuma Takada (平川市) | 036-0233 |
| Hinuma Toida (平川市) | 036-0233 |
| Hinuma Tomita (平川市) | 036-0233 |
| Hinuma Tomitake (平川市) | 036-0233 |
| Hinuma Tsukagoshi (平川市) | 036-0233 |
| Hiratamori Inamura (平川市) | 036-0113 |
| Hiratamori Kamimiyamoto (平川市) | 036-0113 |
| Hiratamori Maeda (平川市) | 036-0113 |
| Hiratamori Shimomiyamoto (平川市) | 036-0113 |
| Hiratamori Wakamatsu (平川市) | 036-0113 |
| Hirofune Fukuda (平川市) | 036-0131 |