| Place | Post Code |
|---|---|
| Dalihan Natolu, Silaen | 22382 |
| Huta Gurgur I, Silaen | 22382 |
| Huta Gurgur II, Silaen | 22382 |
| Huta Namora, Silaen | 22382 |
| Hutagaol Sihujur, Silaen | 22382 |
| Lumban Dolok, Silaen | 22382 |
| Marbulang, Silaen | 22382 |
| Meranti Barat, Silaen | 22382 |
| Napitupulu, Silaen | 22382 |
| Natolutali, Silaen | 22382 |
| Ombur, Silaen | 22382 |
| Panindi, Silaen | 22382 |
| Pardomuan, Silaen | 22382 |
| Parsambilan, Silaen | 22382 |
| Pintu Batu, Silaen | 22382 |
| Sibide, Silaen | 22382 |
| Sibide Barat, Silaen | 22382 |
| Sigodang Tua, Silaen | 22382 |
| Silaen, Silaen | 22382 |
| Simanobak, Silaen | 22382 |
| Sinta Dame, Silaen | 22382 |
| Siringkiron, Silaen | 22382 |
| Sitorang I, Silaen | 22382 |