| Place | Post Code |
|---|---|
| Karmadal, Magadh) | 824112 |
| Kashri Bigaha, Magadh) | 824112 |
| Katea, Magadh) | 824124 |
| Kathaha, Magadh) | 824124 |
| Kazichak, Magadh) | 824112 |
| Khaira, Magadh) | 824102, 824112 |
| Khaira Bandh, Magadh) | 824102 |
| Khaira Karamdih, Magadh) | 824112 |
| Khajuri, Magadh) | 824112 |
| Khanda, Magadh) | 824112 |
| Kharjama, Magadh) | 824124 |
| Khatira, Magadh) | 824112 |
| Khemda, Magadh) | 824112 |
| Kochar, Magadh) | 824112 |
| Kuanrpokhar, Magadh) | 824112 |
| Kunrwa, Magadh) | 824112 |
| Kurwan, Magadh) | 824303 |
| Kusa, Magadh) | 824112 |
| Kusdehra, Magadh) | 824102 |
| Kusmhi, Magadh) | 824112 |
| Lakhaipur, Magadh) | 824112 |
| Maddupur, Magadh) | 824112 |
| Magurahi, Magadh) | 824102 |
| Mahaddi, Magadh) | 824112 |
| Mahtha, Magadh) | 824112 |
| Mahuari, Magadh) | 824112 |
| Majhauli, Magadh) | 824112 |
| Makhra, Magadh) | 824124 |
| Malikana, Magadh) | 824112 |
| Mallu Khaira, Magadh) | 824112 |