| Post Office | Mount Vernon |
| Division | Knox |
| Pincode | 43050 |
| Post Office | Fredericktown |
| Division | Knox |
| Pincode | 43019 |
| Post Office | Centerburg |
| Division | Knox |
| Pincode | 43011 |
| Post Office | Howard |
| Division | Knox |
| Pincode | 43028 |
| Post Office | Gambier |
| Division | Knox |
| Pincode | 43022 |
| Post Office | Danville |
| Division | Knox |
| Pincode | 43014 |
| Post Office | Bladensburg |
| Division | Knox |
| Pincode | 43005 |
| Post Office | Martinsburg |
| Division | Knox |
| Pincode | 43037 |
| Post Office | Mount Liberty |
| Division | Knox |
| Pincode | 43048 |
9 City in Knox | List of Zip Codes Location In Ohio and Your selected County Knox