| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Kabaa, Mbiuni | 90100 |
| Postal/ZIP Codes in Katitu, Mbiuni | 90100 |
| Postal/ZIP Codes in Makiliva, Mbiuni | 90100 |
| Postal/ZIP Codes in Mbiuni, Mbiuni | 90110 |
| Postal/ZIP Codes in Mumbuni, Mbiuni | 90100 |
| Postal/ZIP Codes in Ulaani, Mbiuni | 90100 |