| 43005 Bladensburg | 740 | Knox County | Ohio (OH) |
| 43006 Brinkhaven | 740 | Knox County | Ohio (OH) |
| 43011 Centerburg | 740 | Knox County | Ohio (OH) |
| 43014 Danville | 740 | Knox County | Ohio (OH) |
| 43019 Fredericktown | 740 | Knox County | Ohio (OH) |
| 43019 Fredricktwn | 740 | Knox County | Ohio (OH) |
| 43022 Gambier | 740 | Knox County | Ohio (OH) |
| 43028 Howard | 740 | Knox County | Ohio (OH) |
| 43037 Martinsburg | 740 | Knox County | Ohio (OH) |
| 43048 Mount Liberty | 740 | Knox County | Ohio (OH) |
| 43050 Mount Vernon | 740 | Knox County | Ohio (OH) |