| Place | Post Code |
|---|---|
| Khangvieng, Khangvieng | 09000 |
| Mai (Laoloum), Khangvieng | 09000 |
| Namhong, Khangvieng | 09000 |
| Namouang, Khangvieng | 09000 |
| Namyeun, Khangvieng | 09000 |
| Natheu, Khangvieng | 09000 |
| Phoulom, Khangvieng | 09000 |
| Thasoi, Khangvieng | 09000 |
| Thongpeu, Khangvieng | 09000 |
| All postal codes in Morkmay | |
|---|---|
| Khangvieng, Morkmay | |
| Longmo, Morkmay | |
| Namchat, Morkmay | |
| Namhngat, Morkmay | |
| Samchae, Morkmay | |