Founded in 1794, Franklin County is one of 120 counties in the state of Kentucky. Historically, Franklin County was formed from Mercer County, Shelby County, and Woodford County. The city of Frankfort is the county seat. With FIPS code of 73, Franklin County has a population of 51,682 and area of 210 square miles (544 km2).
List of all cities in Franklin County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Division of Sales Use Tax, KY | 40619 | 502 |
| Frankfort, KY | 40601 | 502 |
| 40602 | 502 | |
| 40603 | 502 | |
| 40604 | 502 | |
| 40618 | 502 | |
| 40619 | 502 | |
| 40620 | 502 | |
| 40621 | 502 | |
| 40622 | 502 | |
| Hatton, KY | 40601 | 502 |
| Ky Dept Human Resources, KY | 40621 | 502 |
| Ky Dept of Revenue, KY | 40618 | 502 |
| 40620 | 502 | |
| Ky Dept of Transportation, KY | 40622 | 502 |