| Place | Post Code |
|---|---|
| Houanathong, Sinxai | 01090 |
| Nabong, Sinxai | 01090 |
| None, Sinxai | 01090 |
| Nongdong, Sinxai | 01090 |
| Phonkham, Sinxai | 01090 |
| Thakok Hai, Sinxai | 01090 |
| Thaxang, Sinxai | 01090 |
| Xienglena, Sinxai | 01090 |
| Xiengletha, Sinxai | 01090 |
| All postal codes in Mayparkngum | |
|---|---|
| Don, Mayparkngum | |
| Dongkalum, Mayparkngum | |
| Nafay, Mayparkngum | |
| Naxon, Mayparkngum | |
| Pakngum, Mayparkngum | |
| Sinxai, Mayparkngum | |