| Place | Post Code |
|---|---|
| Bouamphan, Sophoun | 02000 |
| Chomcheolaosoung, Sophoun | 02000 |
| Houaycha, Sophoun | 02000 |
| Houaychoung, Sophoun | 02000 |
| Houaydoy, Sophoun | 02000 |
| Houaykang, Sophoun | 02000 |
| Houayphouk, Sophoun | 02000 |
| Nalouang, Sophoun | 02000 |
| Panghok, Sophoun | 02000 |
| Phouvieng, Sophoun | 02000 |
| Sophoun, Sophoun | 02000 |
| Sopnao, Sophoun | 02000 |
| Vongtou, Sophoun | 02000 |
| All postal codes in May | |
|---|---|
| Houaykop, May | |
| Kounglouk, May | |
| Nalam, May | |
| Namnga, May | |
| Pakphae, May | |
| Palan, May | |
| Phialo, May | |
| Phonxai, May | |
| Poungyang, May | |
| Sophoun, May | |