| Place | Post Code |
|---|---|
| Donxai, Houayphae | 04000 |
| Hat- En, Houayphae | 04000 |
| Houakeng, Houayphae | 04000 |
| Houayphe, Houayphae | 04000 |
| Kioulom, Houayphae | 04000 |
| Linglang, Houayphae | 04000 |
| Mokton, Houayphae | 04000 |
| Pakko, Houayphae | 04000 |
| Phonsawang, Houayphae | 04000 |
| Sopchay, Houayphae | 04000 |
| Tongxeu, Houayphae | 04000 |
| All postal codes in La | |
|---|---|
| Ano, La | |
| Chakple, La | |
| Donsa-at, La | |
| Houayphae, La | |
| Phonxai, La | |
| Phouthaen, La | |
| Tatmouan, La | |