| Place | Post Code |
|---|---|
| Hatbin, Houaykhoun | 11000 |
| Hatpho, Houaykhoun | 11000 |
| Nampa, Houaykhoun | 11000 |
| Nongdeng, Houaykhoun | 11000 |
| Songkhorn Mai, Houaykhoun | 11000 |
| Thaheua, Houaykhoun | 11000 |
| Veurnsouk, Houaykhoun | 11000 |
| Viengxay, Houaykhoun | 11000 |
| All postal codes in Bolikhanh | |
|---|---|
| Bo, Bolikhanh | |
| Houaykhoun, Bolikhanh | |
| Muang-kao, Bolikhanh | |
| Phakbuak, Bolikhanh | |
| Phamuang, Bolikhanh | |
| Thasi - Xienglu, Bolikhanh | |