| Place | Post Code |
|---|---|
| Umar Chak, Darbhanga) | 848114 |
| Postal Codes in Samastipur | |
|---|---|
| Bibhutpur | |
| Bithan | |
| Dalsinghsarai | |
| Hasanpur | |
| Kalyanpur | |
| Khanpur | |
| Mohanpur | |
| Mohiuddinagar | |
| Morwa | |
| Patori | |
| Pusa | |
| Rosera | |
| Samastipur | |
| Sarairanjan | |
| Shivaji Nagar | |
| Singhia | |
| Tajpur | |
| Ujiarpur | |
| Vidyapati Nagar | |
| Warisnagar | |