Founded in 1824, Spencer County is one of 120 counties in the state of Kentucky. Historically, Spencer County was formed from Nelson County, Shelby County, and Bullitt County. The city of Taylorsville is the county seat. With FIPS code of 215, Spencer County has a population of 19,916 and area of 186 square miles (482 km2).
List of all cities in Spencer County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Mount Eden, KY | 40046 | 502 |
| Taylorsville, KY | 40071 | 502 |