| Ort | Postleitzahl |
|---|---|
| Bairia, Kosi) | 852214 |
| Balua Bazar, Kosi) | 854339 |
| Bardaha Jainagar, Kosi) | 852125 |
| Barhmotar, Kosi) | 852125 |
| Belaganj, Kosi) | 852137 |
| Bhagwatpur, Kosi) | 852125 |
| Bharatpur, Kosi) | 852125 |
| Bhatabari, Kosi) | 852137 |
| Bhawanipur, Kosi) | 854339 |
| Bhawanipur Tharha, Kosi) | 854339 |
| Bhimpur, Kosi) | 854339 |
| Bishunpur Ghulami, Kosi) | 854339 |
| Chainpur, Kosi) | 854339 |
| Chapain, Kosi) | 854339 |
| Charne, Kosi) | 852214 |
| Chhatapur, Kosi) | 852137 |
| Chuni Milik, Kosi) | 852137 |
| Chunni, Kosi) | 852137 |
| Daharia, Kosi) | 852137 |
| Dhakhargaru, Kosi) | 852214 |
| Dodra, Kosi) | 852137 |
| Gareria Chakla, Kosi) | 852137 |
| Ghiwaha, Kosi) | 852137 |
| Girdharpatti, Kosi) | 852137 |
| Gobindpur Kalan, Kosi) | 852214 |
| Gurdharia, Kosi) | 852214, 854339 |
| Gwalpara, Kosi) | 852137 |
| Hariharpur, Kosi) | 852137 |
| Indarpur, Kosi) | 852125 |
| Kalikapur, Kosi) | 852125 |
| Postleitzahlen in Supaul | |
|---|---|
| Basantpur | |
| Chhatapur | |
| Kishanpur | |
| Marauna | |
| Nirmali | |
| Pipra | |
| Pratapganj | |
| Raghopur | |
| Saraigarh Bhaptiyahi | |
| Supaul | |
| Tribeniganj | |