| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Donkong, Hiang | 16000 |
| Postal/ZIP Codes in Hieng, Hiang | 16000 |
| Postal/ZIP Codes in Khoksawaang, Hiang | 16000 |
| Postal/ZIP Codes in Maakngo, Hiang | 16000 |
| Postal/ZIP Codes in Nonedaeng Neua, Hiang | 16000 |
| Postal/ZIP Codes in Nonephachao, Hiang | 16000 |
| Postal/ZIP Codes in Noneyang, Hiang | 16000 |
| Postal/ZIP Codes in Parkxang, Hiang | 16000 |