Founded in 1855, Maries County is one of 114 counties in the state of Missouri. Historically, Maries County was formed from Osage and Pulaski counties. The city of Vienna is the county seat. With FIPS code of 125, Maries County has a population of 8,406 and area of 528 square miles (1,368 km2).
List of all cities in Maries County, MO alphabetically
| City/Town | Postal Code | Area Code |
| Belle, MO | 65013 | 573 |
| Brinktown, MO | 65443 | 573 |
| Byron, MO | 65013 | 573 |
| Koenig, MO | 65013 | 573 |
| Lanes Prairie, MO | 65013 | 573 |
| Paydown, MO | 65013 | 573 |
| Summerfield, MO | 65013 | 573 |
| Vichy, MO | 65580 | 573 |
| Vienna, MO | 65582 | 573 |