| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Okumamachi (嘉麻市) | 820-0302, 821-0002 |
| Postal/ZIP Codes in Onodani (嘉麻市) | 820-0314 |
| Postal/ZIP Codes in Others (嘉麻市) | 820-0200 |
| Postal/ZIP Codes in Sadatsuki (嘉麻市) | 820-0305 |
| Postal/ZIP Codes in Senzu (嘉麻市) | 820-0332 |
| Postal/ZIP Codes in Shiinoki (嘉麻市) | 820-0323 |
| Postal/ZIP Codes in Shimosui (嘉麻市) | 820-0504 |
| Postal/ZIP Codes in Shimoyamada (嘉麻市) | 821-0011 |
| Postal/ZIP Codes in Umami (嘉麻市) | 820-0321 |
| Postal/ZIP Codes in Urushio (嘉麻市) | 820-0201 |
| Postal/ZIP Codes in Ushikuma (嘉麻市) | 820-0301 |
| Postal/ZIP Codes in Yamano (嘉麻市) | 820-0202 |