| Place | Post Code |
|---|---|
| Dongkhammeun, Kengkok | 13000 |
| Dongnakhoy, Kengkok | 13000 |
| Dongnongkhoun, Kengkok | 13000 |
| Dongtalienglak, Kengkok | 13000 |
| Houamuang, Kengkok | 13000 |
| Kengkok Kang, Kengkok | 13000 |
| Kengkokdong, Kengkok | 13000 |
| Kengkokneua, Kengkok | 13000 |
| Kengkokthong, Kengkok | 13000 |
| Nadou, Kengkok | 13000 |
| Nonvilayvanh, Kengkok | 13000 |
| Phaleng, Kengkok | 13000 |
| Phosi, Kengkok | 13000 |
| Saphanlouang, Kengkok | 13000 |