| Ort | Postleitzahl |
|---|---|
| Bahadurganj, Kosi) | 854339 |
| Bahorwa, Kosi) | 852215 |
| Bahtunia Urf Satan Patti, Kosi) | 852215 |
| Baijnathpur, Kosi) | 854338 |
| Bairia Arazi, Kosi) | 854339 |
| Bairia Chawdhari, Kosi) | 854339 |
| Bairia Kamal, Kosi) | 854339 |
| Bairia Mal, Kosi) | 854339 |
| Baisi Chakla, Kosi) | 852215 |
| Balbhadrapur, Kosi) | 854339 |
| Banailipatti, Kosi) | 854340 |
| Barantpur, Kosi) | 854340 |
| Barhampur, Kosi) | 854339 |
| Basantpur, Kosi) | 854340 |
| Bhagwanpur, Kosi) | 854339 |
| Bhawanipur, Kosi) | 854339 |
| Bhimnagar Bairrage, Kosi) | 854338 |
| Bishunpur Chaudhary, Kosi) | 854339 |
| Bishunpur Ghansham, Kosi) | 854339 |
| Bishunpur Shiwaram, Kosi) | 854339 |
| Buchunoa, Kosi) | 854339 |
| Chhitauni, Kosi) | 852215 |
| Derbandhe, Kosi) | 854339 |
| Dhansipatti, Kosi) | 854339 |
| Dharha, Kosi) | 852215 |
| Dharhapatti, Kosi) | 852215 |
| Dharhapatti Az Rakbe Chandip, Kosi) | 852215 |
| Dharhapatti Az Rekbe Chandip, Kosi) | 852215 |
| Dhena, Kosi) | 852215 |
| Dubiahi, Kosi) | 852215 |
| Postleitzahlen in Supaul | |
|---|---|
| Basantpur | |
| Chhatapur | |
| Kishanpur | |
| Marauna | |
| Nirmali | |
| Pipra | |
| Pratapganj | |
| Raghopur | |
| Saraigarh Bhaptiyahi | |
| Supaul | |
| Tribeniganj | |