| Place | Post Code |
|---|---|
| Chakhamping Mai, Sivilai | 03000 |
| Chakheun, Sivilai | 03000 |
| Houaykha, Sivilai | 03000 |
| Houaylouang, Sivilai | 03000 |
| Houaymo Kao, Sivilai | 03000 |
| Langpha Mai, Sivilai | 03000 |
| Meuangkang, Sivilai | 03000 |
| Pakha, Sivilai | 03000 |
| Phagnalouang, Sivilai | 03000 |
| Phochan, Sivilai | 03000 |
| All postal codes in Long | |
|---|---|
| Chaleunxai, Long | |
| Chamai, Long | |
| Chomchaeng, Long | |
| Chongka, Long | |
| Sa, Long | |
| Sivilai, Long | |
| Sompan, Long | |
| That, Long | |
| Xiengkok, Long | |