| Place | Post Code |
|---|---|
| Bp Nauli (Baringin Pancur Nauli, Siantar Marihat) | 21129 |
| Mekar Nauli, Siantar Marihat | 21129 |
| Pardamean, Siantar Marihat | 21128 |
| Parhorasan Nauli, Siantar Marihat | 21129 |
| Sukamaju, Siantar Marihat | 21127 |
| Sukamakmur, Siantar Marihat | 21128 |
| Sukaraja, Siantar Marihat | 21128 |