| Place | Post Code |
|---|---|
| Sahawa, Purnia) | 854326 |
| Sakma, Purnia) | 854326 |
| Sakraili, Purnia) | 854326 |
| Shagunian, Purnia) | 854315 |
| Shahkol, Purnia) | 855105 |
| Shekhpura, Purnia) | 854326 |
| Siarkhan, Purnia) | 854326 |
| Sinduar, Purnia) | 854326 |
| Singhia, Purnia) | 854315 |
| Singhiya, Purnia) | 854304 |
| Sonbhanga, Purnia) | 854326 |
| Soti, Purnia) | 854326 |
| Tamaut, Purnia) | 854326 |
| Tauli, Purnia) | 854330 |
| Teghra, Purnia) | 854326, 854315 |
| Tengari, Purnia) | 854326 |
| Tengri, Purnia) | 854326 |
| Thathauli, Purnia) | 854315 |
| Udharna, Purnia) | 854326 |
| Postal Codes in Purnia | |
|---|---|
| Amour | |
| Baisa | |
| Baisi | |
| Banmankhi | |
| Barhara | |
| Bhawanipur | |
| Dagarua | |
| Dhamdaha | |
| Jalalgarh | |
| Kasba | |
| Krityanand Nagar | |
| Purnia East | |
| Rupauli | |
| Srinagar | |