| Place | Post Code |
|---|---|
| Bor, Songkhao | 07000 |
| Gnottong, Songkhao | 07000 |
| Houaygnong, Songkhao | 07000 |
| Keoleuk, Songkhao | 07000 |
| Keosala, Songkhao | 07000 |
| Kor Houk, Songkhao | 07000 |
| Namhem, Songkhao | 07000 |
| Namou, Songkhao | 07000 |
| Outhai, Songkhao | 07000 |
| Pa, Songkhao | 07000 |
| Phasiou, Songkhao | 07000 |
| Sanot, Songkhao | 07000 |
| Songkhao, Songkhao | 07000 |
| Soumnot, Songkhao | 07000 |
| Tavieng, Songkhao | 07000 |