| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Dongmakngeo, Naxay | 13000 |
| Postal/ZIP Codes in Nadou, Naxay | 13000 |
| Postal/ZIP Codes in Nasanod, Naxay | 13000 |
| Postal/ZIP Codes in Naxaykham, Naxay | 13000 |
| Postal/ZIP Codes in Naxaythong, Naxay | 13000 |
| Postal/ZIP Codes in Phakkhagna, Naxay | 13000 |
| Postal/ZIP Codes in Somsaat, Naxay | 13000 |