| Locality | Post Code |
|---|---|
| Kowamori Shimotagawa (平川市) | 036-0111 |
| Kowamori Tanetori (平川市) | 036-0111 |
| Kuzukawa Aseishiyama (平川市) | 036-0172 |
| Kuzukawa Heirokumurashita (平川市) | 036-0172 |
| Kuzukawa Heirokusawakami (平川市) | 036-0172 |
| Kuzukawa Ippongitaira (平川市) | 036-0172 |
| Kuzukawa Kaminotaira (平川市) | 036-0172 |
| Kuzukawa Karakawataira (平川市) | 036-0172 |
| Kuzukawa Kenashimori (平川市) | 036-0172 |
| Kuzukawa Kuzukawadeguchi (平川市) | 036-0172 |
| Kuzukawa Kuzukawasawa (平川市) | 036-0172 |
| Kuzukawa Kuzukawataira (平川市) | 036-0172 |
| Kuzukawa Nagakomata (平川市) | 036-0172 |
| Kuzukawa Okawazoe (平川市) | 036-0172 |
| Kuzukawa Orito (平川市) | 036-0172 |
| Kuzukawa Sunakozawa (平川市) | 036-0172 |
| Kuzukawa Tanosawaguchi (平川市) | 036-0172 |
| Kuzukawa Yagishi (平川市) | 036-0172 |