| Place | Post Code |
|---|---|
| Inta Tikar, Magadh) | 824232 |
| Itahri, Magadh) | 824232 |
| Itra, Magadh) | 824201 |
| Itwan, Magadh) | 824232 |
| Jadu Chak, Magadh) | 824232 |
| Jadu Chak Arazi, Magadh) | 824232 |
| Jadua Chak, Magadh) | 824232 |
| Jagdishpur, Magadh) | 824232 |
| Jagir Chandrahuan, Magadh) | 824232 |
| Jainagar, Magadh) | 824232 |
| Jalhi, Magadh) | 824232 |
| Jamuhar, Magadh) | 824201 |
| Jamuna, Magadh) | 824201 |
| Jamuni, Magadh) | 824232 |
| Jarlahi, Magadh) | 824232 |
| Jhalar, Magadh) | 824232 |
| Jhanakpur, Magadh) | 824201 |
| Jogar, Magadh) | 824231 |
| Jogini, Magadh) | 824232 |
| Jogiya, Magadh) | 824232 |
| Kachanpur, Magadh) | 824232 |
| Kadarchunan, Magadh) | 824232 |
| Karjara, Magadh) | 824232 |
| Kashiya Chak, Magadh) | 824232 |
| Kenari, Magadh) | 824232 |
| Kendua, Magadh) | 824232 |
| Kendua Arazi, Magadh) | 824232 |
| Kenuari, Magadh) | 824232 |
| Kewala, Magadh) | 824232 |
| Khajurahi, Magadh) | 824232 |