| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Singhari, Purnia) | 855107 |
| Postal/ZIP Codes in Singharikol, Purnia) | 855107 |
| Postal/ZIP Codes in Sirsi, Purnia) | 855107 |
| Postal/ZIP Codes in Sisabari, Purnia) | 855115 |
| Postal/ZIP Codes in Sonamani, Purnia) | 855107 |
| Postal/ZIP Codes in Sonapur, Purnia) | 854315, 855115 |
| Postal/ZIP Codes in Sukarna, Purnia) | 855115 |
| Postal/ZIP Codes in Tarabari, Purnia) | 854315 |
| Postal/ZIP Codes in Tetalia, Purnia) | 855107 |
| Postal/ZIP Codes in Titiha, Purnia) | 855107 |
| Postal/ZIP Codes in Ukusbhasa, Purnia) | 854315 |
| Postal/ZIP Codes in Uphrail, Purnia) | 854315 |