| Place | Post Code |
|---|---|
| Ahrar, Tirhut) | 845455 |
| Amolwa, Tirhut) | 845455 |
| Araria, Tirhut) | 845451 |
| Bahuarwa, Tirhut) | 845451 |
| Bairatwa, Tirhut) | 845455 |
| Bairia, Tirhut) | 845451, 845455 |
| Bajni, Tirhut) | 845455 |
| Bajra, Tirhut) | 845451 |
| Bakhri, Tirhut) | 845455 |
| Balua, Tirhut) | 845455 |
| Balwal, Tirhut) | 845455 |
| Ban Bairia, Tirhut) | 845455 |
| Banspur, Tirhut) | 845451 |
| Bargon, Tirhut) | 845455 |
| Barharwa, Tirhut) | 845455 |
| Barwa, Tirhut) | 845451 |
| Basantpur, Tirhut) | 845455 |
| Baswaria, Tirhut) | 845455 |
| Belsandi, Tirhut) | 845455 |
| Belwa, Tirhut) | 845451, 845455 |
| Belwa Bahuari, Tirhut) | 845455 |
| Bendauli, Tirhut) | 845455 |
| Betahania, Tirhut) | 845455 |
| Bhatni, Tirhut) | 845455 |
| Bhatujhila, Tirhut) | 845455 |
| Bhawanipur, Tirhut) | 845455 |
| Bhikhana Thori, Tirhut) | 845455 |
| Bhikhnathori, Tirhut) | 845455 |
| Bhitharwa, Tirhut) | 845455 |
| Bhitharwa Dheri Dhenhwa, Tirhut) | 845455 |