| Place | Post Code |
|---|---|
| Khangvieng, Khangvieng | 09000 |
| Lao, Khangvieng | 09000 |
| Monxom, Khangvieng | 09000 |
| Mouangkhoi, Khangvieng | 09000 |
| Nalarm, Khangvieng | 09000 |
| Phaingam, Khangvieng | 09000 |
| Phonthong, Khangvieng | 09000 |
| Puongpan, Khangvieng | 09000 |
| Sikhoun, Khangvieng | 09000 |