| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Alu, Alu | 91325 |
| Postal/ZIP Codes in Kalumammang, Alu | 91325 |
| Postal/ZIP Codes in Mombi, Alu | 91325 |
| Postal/ZIP Codes in Pao Pao, Alu | 91325 |
| Postal/ZIP Codes in Petoosang, Alu | 91325 |
| Postal/ZIP Codes in Pupu Uring, Alu | 91325 |
| Postal/ZIP Codes in Saragian, Alu | 91325 |
| Postal/ZIP Codes in Sayoang, Alu | 91325 |