| Place | Post Code |
|---|---|
| Kaikhan, Longmo | 09000 |
| Mo, Longmo | 09000 |
| Nakhorn, Longmo | 09000 |
| Namkeung, Longmo | 09000 |
| Namkyo, Longmo | 09000 |
| Namorn, Longmo | 09000 |
| Xiengmen, Longmo | 09000 |
| Yuak, Longmo | 09000 |
| All postal codes in Morkmay | |
|---|---|
| Khangvieng, Morkmay | |
| Longmo, Morkmay | |
| Namchat, Morkmay | |
| Namhngat, Morkmay | |
| Samchae, Morkmay | |