| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Dorngnao, Nongkan | 13000 |
| Postal/ZIP Codes in Nahouakhouay, Nongkan | 13000 |
| Postal/ZIP Codes in Nonechanh, Nongkan | 13000 |
| Postal/ZIP Codes in Nongkanh, Nongkan | 13000 |
| Postal/ZIP Codes in Nongsaeng, Nongkan | 13000 |
| Postal/ZIP Codes in Phouheub, Nongkan | 13000 |