| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Khajuri, Kosi) | 852221 |
| Postal/ZIP Codes in Lachhminia, Kosi) | 852221 |
| Postal/ZIP Codes in Madhura, Kosi) | 852221 |
| Postal/ZIP Codes in Nado, Kosi) | 852221 |
| Postal/ZIP Codes in Phursaha, Kosi) | 852221 |
| Postal/ZIP Codes in Raghunathpur, Kosi) | 852221 |
| Postal/ZIP Codes in Rauta, Kosi) | 852221 |
| Postal/ZIP Codes in Sahuria, Kosi) | 852221 |
| Postal/ZIP Codes in Saur, Kosi) | 852221 |
| Postal/ZIP Codes in Silet, Kosi) | 852221 |
| Postal/ZIP Codes in Suhath, Kosi) | 852221 |
| Postal/ZIP Codes in Tiri, Kosi) | 852121 |