Founded in 1842, Boyle County is one of 120 counties in the state of Kentucky. Historically, Boyle County was formed from Lincoln County and Mercer County. The city of Danville is the county seat. With FIPS code of 21, Boyle County has a population of 30,747 and area of 182 square miles (471 km2).
List of all cities in Boyle County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Danville, KY | 40422 | 859 |
| 40423 | 859 | |
| 40452 | 859 | |
| Junction City, KY | 40440 | 859 |
| Mitchellsburg, KY | 40452 | 859 |
| Parksville, KY | 40464 | 859 |
| Perryville, KY | 40468 | 859 |