| Place | Postal Code |
|---|---|
| Homxai, Homxai | 04000 |
| Houaygnam, Homxai | 04000 |
| Houayxang, Homxai | 04000 |
| Houayyang, Homxai | 04000 |
| Lak 10, Homxai | 04000 |
| Mokbot, Homxai | 04000 |
| Mokchak Kang, Homxai | 04000 |
| Na Om, Homxai | 04000 |
| Nalan, Homxai | 04000 |
| Pangsouk, Homxai | 04000 |
| Thin, Homxai | 04000 |