| Place | Post Code |
|---|---|
| Banpouk, Houaxieng | 07000 |
| Done, Houaxieng | 07000 |
| Gnortyouang Nua, Houaxieng | 07000 |
| Houaxieng, Houaxieng | 07000 |
| Houayni, Houaxieng | 07000 |
| Houaypoung, Houaxieng | 07000 |
| Houaysateb, Houaxieng | 07000 |
| Houaytup, Houaxieng | 07000 |
| Kengnay, Houaxieng | 07000 |
| Keoding, Houaxieng | 07000 |
| Napho, Houaxieng | 07000 |
| Nongxay, Houaxieng | 07000 |
| Palao, Houaxieng | 07000 |
| Phadaeng Nua, Houaxieng | 07000 |
| Poungka, Houaxieng | 07000 |
| Soptieng, Houaxieng | 07000 |
| Thamphou, Houaxieng | 07000 |
| Thupkhor, Houaxieng | 07000 |