| Place | Post Code |
|---|---|
| Semra Sirampur, Tirhut) | 845455 |
| Semri, Tirhut) | 845102 |
| Serahwa, Tirhut) | 845455 |
| Serhua, Tirhut) | 845455 |
| Shajahanpur, Tirhut) | 845455 |
| Sherpur, Tirhut) | 845455 |
| Sihpurwa, Tirhut) | 845455 |
| Sirsia, Tirhut) | 845455 |
| Sisai, Tirhut) | 845104, 845102 |
| Sithi, Tirhut) | 845455 |
| Sonbarsa, Tirhut) | 845455 |
| Sonkhar, Tirhut) | 845455 |
| Tahkaul, Tirhut) | 845455 |
| Tara, Tirhut) | 845455 |
| Tola Pararia, Tirhut) | 845451 |
| Turkaulia, Tirhut) | 845455 |