| Place | Post Code |
|---|---|
| Arraha, Kosi) | 852121 |
| Bancholha, Kosi) | 852121 |
| Bardaha, Kosi) | 852202 |
| Bardaha Arazi Ramna, Kosi) | 852202 |
| Basudeva, Kosi) | 852121 |
| Bhatrandha, Kosi) | 852124 |
| Bhawantikthi, Kosi) | 852121 |
| Chitti, Kosi) | 852124 |
| Ghailar, Kosi) | 852124 |
| Goth Bardaha, Kosi) | 852202 |
| Jhitkia, Kosi) | 852124 |
| Parmanandpur, Kosi) | 852112 |
| Pathraha, Kosi) | 852124 |
| Piprahi Chakla, Kosi) | 852128 |
| Ratanpura, Kosi) | 852128 |
| Srinagar, Kosi) | 852124 |
| Postal Codes in Madhepura | |
|---|---|
| Alamnagar | |
| Bihariganj | |
| Chausa | |
| Gamharia | |
| Ghailarh | |
| Gwalpara | |
| Kishanganj | |
| Kumarkhand | |
| Madhepura | |
| Murliganj | |
| Puraini | |
| Shankarpur | |
| Singheshwar | |