| Place | Post Code |
|---|---|
| Agar, Kosi) | 852106 |
| Aini, Kosi) | 852106 |
| Ashraf Chak, Kosi) | 852127 |
| Baghwa, Kosi) | 852106 |
| Baidi, Kosi) | 852106 |
| Bakhtiarpur, Kosi) | 852127 |
| Balhampur, Kosi) | 852127 |
| Balhi, Kosi) | 852106 |
| Balthi, Kosi) | 852127 |
| Barsam, Kosi) | 852106 |
| Basatpur, Kosi) | 852127 |
| Belwara, Kosi) | 852106 |
| Bhagwanpur, Kosi) | 852127 |
| Bhatauni, Kosi) | 852127 |
| Bhauara, Kosi) | 852127 |
| Bhavdeva, Kosi) | 852106 |
| Bhorha, Kosi) | 852127 |
| Bhotia, Kosi) | 852127 |
| Bindpur, Kosi) | 852127 |
| Chak Bharo, Kosi) | 852127 |
| Chapraon, Kosi) | 852106, 852132 |
| Dhanpura, Kosi) | 852106 |
| Ghoghsam, Kosi) | 852106 |
| Gopalpur, Kosi) | 852106, 852216 |
| Hamidpur, Kosi) | 852127 |
| Hario, Kosi) | 852106 |
| Kantho, Kosi) | 852106 |
| Kathdumar, Kosi) | 852106 |
| Khajuri, Kosi) | 852106 |
| Khamauti, Kosi) | 852127 |
| Postal Codes in Saharsa | |
|---|---|
| Banma Itahri | |
| Kahara | |
| Mahishi | |
| Nauhatta | |
| Patarghat | |
| Salkhua | |
| Satar Kataiya | |
| Saur Bazar | |
| Simri Bakhtiarpur | |
| Sonbarsa | |