| Place | Post Code |
|---|---|
| Kanpur, Central) | 754204 |
| Kantapare, Central) | 754293 |
| Karamuan, Central) | 754202 |
| Karimabad, Central) | 754202 |
| Kashipur, Central) | 754202 |
| Katarapa, Central) | 754207 |
| Kendilo, Central) | 754209 |
| Keranga, Central) | 754221 |
| Keutakandia, Central) | 754207 |
| Khaira, Central) | 754221 |
| Khandagan, Central) | 754203 |
| Khandagaon, Central) | 754203 |
| Koilirangi, Central) | 754209 |
| Kuanrpur, Central) | 754208 |
| Kukudanga, Central) | 754201 |
| Kulasukarpara, Central) | 754209 |
| Kulia, Central) | 754202 |
| Kusumbi, Central) | 754221 |
| Lalbag, Central) | 754202 |
| Lekhanpur, Central) | 754201 |
| Lendura Bhagwanpur, Central) | 754203 |
| Lokanathapur, Central) | 754209 |
| Lunahar, Central) | 754202 |
| M Sahi, Central) | 754207 |
| Machhuati, Central) | 754202 |
| Madhanga, Central) | 754221 |
| Madhusudanpur, Central) | 754207 |
| Mahanapur, Central) | 754201 |
| Malasasan, Central) | 754201 |
| Malihata, Central) | 754204 |