| Place | Post Code |
|---|---|
| Rupdih Milik, Purnia) | 854303 |
| Sahara, Purnia) | 854303 |
| Sahara Milik, Purnia) | 854303 |
| Satkodaria, Purnia) | 854303 |
| Sauraha, Purnia) | 854306 |
| Sauraha Milik, Purnia) | 854306 |
| Siswa, Purnia) | 854306 |
| Songarha Ganeshpur, Purnia) | 854304 |
| Songarha Kajha, Purnia) | 854304 |
| Postal Codes in Purnia | |
|---|---|
| Amour | |
| Baisa | |
| Baisi | |
| Banmankhi | |
| Barhara | |
| Bhawanipur | |
| Dagarua | |
| Dhamdaha | |
| Jalalgarh | |
| Kasba | |
| Krityanand Nagar | |
| Purnia East | |
| Rupauli | |
| Srinagar | |