| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Houay Lieng, Nakhok | 04000 |
| Postal/ZIP Codes in Houay Prong, Nakhok | 04000 |
| Postal/ZIP Codes in Maiyai, Nakhok | 04000 |
| Postal/ZIP Codes in Na Khok, Nakhok | 04000 |
| Postal/ZIP Codes in Pak Houay, Nakhok | 04000 |
| Postal/ZIP Codes in Pung, Nakhok | 04000 |