| Locality | Postal Code |
|---|---|
| Nakanoya (小美玉市) | 319-0111 |
| Noba (小美玉市) | 319-0134 |
| Noda (小美玉市) | 311-3411 |
| Ogawa (小美玉市) | 311-3423 |
| Osono (小美玉市) | 319-0125 |
| Others (小美玉市) | 319-0100 |
| Oya (小美玉市) | 319-0126 |
| Ozasa (小美玉市) | 319-0137 |
| Saigochi (小美玉市) | 319-0102 |
| Sanga (小美玉市) | 319-0104 |
| Sazai (小美玉市) | 311-3402 |
| Seraku (小美玉市) | 311-3401 |
| Shibataka (小美玉市) | 319-0103 |
| Shimobaba (小美玉市) | 311-3426 |
| Shimotamari (小美玉市) | 311-3432 |
| Shimoyoshikage (小美玉市) | 311-3406 |
| Tagiya (小美玉市) | 311-3435 |
| Takada (小美玉市) | 319-0135 |
| Takasaki (小美玉市) | 311-3433 |
| Takehara (小美玉市) | 319-0113 |
| Takeharanakago (小美玉市) | 319-0114 |
| Takeharashimogo (小美玉市) | 319-0112 |
| Terazaki (小美玉市) | 319-0131 |
| Tetsuzumi (小美玉市) | 319-0136 |
| Tonochi (小美玉市) | 311-3414 |
| Tsuruta (小美玉市) | 319-0105 |