Founded in 1833, Clinton County is one of 114 counties in the state of Missouri. Historically, Clinton County was formed from Clay County. The city of Plattsburg is the county seat. With FIPS code of 49, Clinton County has a population of 21,287 and area of 419 square miles (1,085 km2).
List of all cities in Clinton County, MO alphabetically
| City/Town | Postal Code | Area Code |
| Cameron, MO | 64429 | 816/975 |
| Gower, MO | 64454 | 816/975 |
| Lathrop, MO | 64465 | 816/975 |
| Plattsburg, MO | 64477 | 816/975 |
| Trimble, MO | 64492 | 816/975 |
| Turney, MO | 64493 | 816/975 |