| Place | Post Code |
|---|---|
| Nalao, Napho - Saka | 10000 |
| Naphaeng, Napho - Saka | 10000 |
| Napho, Napho - Saka | 10000 |
| Naxai, Napho - Saka | 10000 |
| Noi, Napho - Saka | 10000 |
| Nongkhon, Napho - Saka | 10000 |
| Phonengam, Napho - Saka | 10000 |
| Phonengeun, Napho - Saka | 10000 |
| Phonesawan, Napho - Saka | 10000 |
| Phonesawang, Napho - Saka | 10000 |
| Phonexai, Napho - Saka | 10000 |
| Phoneyang, Napho - Saka | 10000 |
| Saka, Napho - Saka | 10000 |
| Vangmon, Napho - Saka | 10000 |
| All postal codes in Phonhong | |
|---|---|
| Nalao, Phonhong | |
| Nalao (Lak 52), Phonhong | |
| Napho - Saka, Phonhong | |
| Phonho, Phonhong | |
| Phonhong, Phonhong | |
| Phonsoung, Phonhong | |