| Place | Post Code |
|---|---|
| Aek Raso, Sorkam Barat | 22561 |
| Binasi, Sorkam Barat | 22561 |
| Madani, Sorkam Barat | 22561 |
| Maduma, Sorkam Barat | 22561 |
| Pahieme, Sorkam Barat | 22561 |
| Pahieme II, Sorkam Barat | 22561 |
| Pasar Sorkam, Sorkam Barat | 22561 |
| Pasaribu Tobing Jae, Sorkam Barat | 22561 |
| Sidikalang, Sorkam Barat | 22561 |
| Sipea Pea, Sorkam Barat | 22561 |
| Sorkam Kanan, Sorkam Barat | 22561 |
| Sorkam Kanan 2, Sorkam Barat | 22563 |