| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Parsa Madho, Kosi) | 852138 |
| Postal/ZIP Codes in Phulwaria, Kosi) | 852105 |
| Postal/ZIP Codes in Rajpur, Kosi) | 852138 |
| Postal/ZIP Codes in Shivpuri, Kosi) | 852138 |
| Postal/ZIP Codes in Singiawan, Kosi) | 852138 |
| Postal/ZIP Codes in Sisauni, Kosi) | 852138 |
| Postal/ZIP Codes in Siswa, Kosi) | 852131 |
| Postal/ZIP Codes in Sohagpur, Kosi) | 852138 |
| Postal/ZIP Codes in Sujanpur, Kosi) | 852138 |
| Postal/ZIP Codes in Sukhasan, Kosi) | 852105 |
| Postal/ZIP Codes in Sukmarpur, Kosi) | 852138 |
| Postal/ZIP Codes in Tharbitta, Kosi) | 852138 |
| Postal/ZIP Codes in Tulapatti, Kosi) | 852138 |