| Place | Post Code |
|---|---|
| Hangna, Nong-o | 11000 |
| Lak 10, Nong-o | 11000 |
| Lak 12, Nong-o | 11000 |
| Lak 5, Nong-o | 11000 |
| Lak 7, Nong-o | 11000 |
| Nachia, Nong-o | 11000 |
| Nahath, Nong-o | 11000 |
| Naheuang, Nong-o | 11000 |
| Nahoua, Nong-o | 11000 |
| Nakhe, Nong-o | 11000 |
| Nalia, Nong-o | 11000 |
| Nampan, Nong-o | 11000 |
| Nangok, Nong-o | 11000 |
| Napeir, Nong-o | 11000 |
| Nasalom, Nong-o | 11000 |
| Nong-Or, Nong-o | 11000 |
| Suanemorn, Nong-o | 11000 |
| Thongbe, Nong-o | 11000 |
| All postal codes in Khamkeuth | |
|---|---|
| Khammouan, Khamkeuth | |
| Nong-o, Khamkeuth | |
| Nongkok, Khamkeuth | |
| Phontan, Khamkeuth | |
| Thavaeng, Khamkeuth | |
| Thongkhe, Khamkeuth | |
| Thongsaen, Khamkeuth | |