| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Sangrampur, Tirhut) | 843330 |
| Postal/ZIP Codes in Sarwarpur, Tirhut) | 843317 |
| Postal/ZIP Codes in Sihorwa, Tirhut) | 843330 |
| Postal/ZIP Codes in Singhibahni, Tirhut) | 843317 |
| Postal/ZIP Codes in Sonbersa, Tirhut) | 843317, 843330 |
| Postal/ZIP Codes in Supaina, Tirhut) | 843317 |
| Postal/ZIP Codes in Urlahia, Tirhut) | 843317 |