| Locality | Post Code |
|---|---|
| Baring, Knox | 63531 |
| Bible Grove, Knox | 63531 |
| Colony, Knox | 63531 |
| Edina, Knox | 63537 |
| Forest Springs, Knox | 63446 |
| Greensburg, Knox | 63531 |
| Hurdland, Knox | 63547 |
| Kenwood, Knox | 63547 |
| Knox City, Knox | 63446 |
| Locust Hill, Knox | 63547 |
| Newark, Knox | 63458 |
| Novelty, Knox | 63460 |
| Plevna, Knox | 63464 |