Founded in 1812, Sainte Genevieve County is one of 114 counties in the state of Missouri. Historically, Sainte Genevieve County was one of the five original counties. The city of Ste. Genevieve is the county seat. With FIPS code of 186, Sainte Genevieve County has a population of 18,588 and area of 502 square miles (1,300 km2).
List of all cities in Sainte Genevieve County, MO alphabetically
| City/Town | Postal Code | Area Code |
| Bloomsdale, MO | 63627 | 573 |
| Clearwater, MO | 63670 | 573 |
| Coffman, MO | 63670 | 573 |
| Lake Forest, MO | 63670 | 573 |
| New Offenburg, MO | 63670 | 573 |
| Rocky Ridge, MO | 63670 | 573 |
| Saint Marys, MO | 63673 | 573 |
| Sainte Genevieve, MO | 63670 | 573 |
| Ste Genevieve, MO | 63670 | 573 |
| Weingarten, MO | 63670 | 573 |
| Zell, MO | 63670 | 573 |