| Place | Post Code |
|---|---|
| Nirmali, Kosi) | 854339 |
| Padampur, Kosi) | 852215 |
| Panchpanduria, Kosi) | 854339 |
| Parmanandpur, Kosi) | 852215 |
| Parsa, Kosi) | 854339 |
| Parsa Kalan, Kosi) | 854339 |
| Parsa Milik, Kosi) | 854339 |
| Parsahi, Kosi) | 854339 |
| Parwaha, Kosi) | 854339 |
| Parwaha Chakla, Kosi) | 854339 |
| Piprahigot, Kosi) | 854340 |
| Piprahinag, Kosi) | 854340 |
| Piprahipatti Golari, Kosi) | 854340 |
| Puraini, Kosi) | 854340 |
| Raghunathpur, Kosi) | 854338 |
| Rampur, Kosi) | 854339 |
| Raniganj, Kosi) | 854338 |
| Ranipatti, Kosi) | 854340 |
| Ratanpura, Kosi) | 852215 |
| Sahajpur, Kosi) | 854338 |
| Saheban, Kosi) | 854338 |
| Samda, Kosi) | 854338 |
| Saranpur, Kosi) | 854340 |
| Shankarpur, Kosi) | 854339 |
| Shibnagar, Kosi) | 854339 |
| Sitapur, Kosi) | 854339 |
| Sobhankarpur, Kosi) | 854339 |
| Sonapur, Kosi) | 854339 |
| Surea Urf Siripur, Kosi) | 852215 |
| Tulsipatti, Kosi) | 854339 |
| Postal Codes in Supaul | |
|---|---|
| Basantpur | |
| Chhatapur | |
| Kishanpur | |
| Marauna | |
| Nirmali | |
| Pipra | |
| Pratapganj | |
| Raghopur | |
| Saraigarh Bhaptiyahi | |
| Supaul | |
| Tribeniganj | |