| Place | Postal Code |
|---|---|
| Gamalenga, Tambua | 50300 |
| Gimarakwa, Tambua | 50300 |
| Ivola, Tambua | 50300 |
| Kiptaimes, Tambua | 50300 |
| Mwembe, Tambua | 50300 |
| Postal Codes in Hamisi | |
|---|---|
| Banja, Hamisi | |
| Gisambai, Hamisi | |
| Jepkoyai, Hamisi | |
| Muhudu, Hamisi | |
| Shamakhokho, Hamisi | |
| Shiru, Hamisi | |
| Tambua, Hamisi | |