| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Huayloun, Longxan | 09000 |
| Postal/ZIP Codes in Keoleuk, Longxan | 09000 |
| Postal/ZIP Codes in Khap, Longxan | 09000 |
| Postal/ZIP Codes in Namvan, Longxan | 09000 |
| Postal/ZIP Codes in Sannoi, Longxan | 09000 |
| Postal/ZIP Codes in Thaenphoun, Longxan | 09000 |
| Postal/ZIP Codes in Thaenthong, Longxan | 09000 |