| Place | Post Code |
|---|---|
| Ang, Mai | 01010 |
| Houayhome, Mai | 01010 |
| Mai, Mai | 01010 |
| Nongda, Mai | 01010 |
| Nonkeo, Mai | 01010 |
| Nonkhilek, Mai | 01010 |
| Phosomboun, Mai | 01010 |
| Tatthong, Mai | 01010 |
| All postal codes in Sikhottabong | |
|---|---|
| Kaoliao, Sikhottabong | |
| Mai, Sikhottabong | |
| Nongbuk, Sikhottabong | |
| Nongdouang, Sikhottabong | |
| Nongniao, Sikhottabong | |
| Sikhai, Sikhottabong | |
| Sithan, Sikhottabong | |