| Place | Post Code |
|---|---|
| Kalijati, Central) | 756041 |
| Kalyani, Central) | 756020 |
| Kamarkhalia, Central) | 756020 |
| Kanapur, Central) | 756042 |
| Kandagaridi, Central) | 756042 |
| Kans, Central) | 756020 |
| Kantabania, Central) | 756040 |
| Kantasimulia, Central) | 756020 |
| Kanthiatikara, Central) | 756040 |
| Kanthipada, Central) | 756040 |
| Karanjabania, Central) | 756045 |
| Karanjia, Central) | 756020 |
| Kathagochhi, Central) | 756020 |
| Kathapal, Central) | 756020 |
| Kendukhunta, Central) | 756040 |
| Kendunal, Central) | 756040 |
| Kerata Padia, Central) | 756040 |
| Kesura, Central) | 756041 |
| Khadipada, Central) | 756042, 756043, 756040 |
| Khairabani, Central) | 756040 |