| Place | Post Code |
|---|---|
| Baka Louang, Lak 18 | 02000 |
| Baka Noi, Lak 18 | 02000 |
| Chicho, Lak 18 | 02000 |
| Kangkiou, Lak 18 | 02000 |
| Lak 13, Lak 18 | 02000 |
| Lak 33, Lak 18 | 02000 |
| Langkhe, Lak 18 | 02000 |
| Namlong Kao, Lak 18 | 02000 |
| Namlong Mai, Lak 18 | 02000 |
| Nampong Kao, Lak 18 | 02000 |
| Phongkou, Lak 18 | 02000 |
| Sala E Be, Lak 18 | 02000 |
| Samlang, Lak 18 | 02000 |
| Tete, Lak 18 | 02000 |
| Yapong, Lak 18 | 02000 |