| Place | Post Code |
|---|---|
| Dolok Raja, Harian | 22391 |
| Hariara Pohan, Harian | 22391 |
| Hariarapintu, Harian | 22391 |
| Hutagalung, Harian | 22391 |
| Janji Martahan, Harian | 22391 |
| Partungko Naginjang, Harian | 22391 |
| Sampur Toba, Harian | 22391 |
| Siparmahan, Harian | 22391 |
| Sosor Dolok, Harian | 22391 |
| Turpuk Limbong, Harian | 22391 |
| Turpuk Malau, Harian | 22391 |
| Turpuk Sagala, Harian | 22391 |
| Turpuk Sihotang, Harian | 22391 |