| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Hatlane, Naxai | 02000 |
| Postal/ZIP Codes in Houaythong, Naxai | 02000 |
| Postal/ZIP Codes in Khana, Naxai | 02000 |
| Postal/ZIP Codes in Na, Naxai | 02000 |
| Postal/ZIP Codes in Nateuy, Naxai | 02000 |
| Postal/ZIP Codes in Naxay, Naxai | 02000 |
| Postal/ZIP Codes in Omtham, Naxai | 02000 |
| Postal/ZIP Codes in Phouxay, Naxai | 02000 |
| Postal/ZIP Codes in Thaovong, Naxai | 02000 |
| Postal/ZIP Codes in Yai Neua, Naxai | 02000 |