Post Offices List in Knox County, Missouri:
| Baring Post Office | 400 Main St, Baring, MO 63531 |
| Edina Post Office | 107 S 2nd St, Edina, MO 63537 |
| Hurdland Post Office | 404 N 3rd St, Hurdland, MO 63547 |
| Knox City Post Office | 103 W Main St, Knox City, MO 63446 |
| Newark Post Office | 106 S Main St, Newark, MO 63458 |
| Novelty Post Office | 220 E Main St, Novelty, MO 63460 |