Founded in 1843, Knox County is one of 114 counties in the state of Missouri. Historically, Knox County was formed from Scotland County. The city of Edina is the county seat. With FIPS code of 103, Knox County has a population of 3,808 and area of 506 square miles (1,311 km2).
List of all cities in Knox County, MO alphabetically
| City/Town | Postal Code | Area Code |
| Baring, MO | 63531 | 660 |
| Bible Grove, MO | 63531 | 660 |
| Colony, MO | 63531 | 660 |
| Edina, MO | 63537 | 660 |
| Forest Springs, MO | 63446 | 660 |
| Greensburg, MO | 63531 | 660 |
| Hurdland, MO | 63547 | 660 |
| Kenwood, MO | 63547 | 660 |
| Knox City, MO | 63446 | 660 |
| Locust Hill, MO | 63547 | 660 |
| Newark, MO | 63458 | 660 |
| Novelty, MO | 63460 | 660 |
| Plevna, MO | 63464 | 660 |