Founded in 1799, Knox County is one of 120 counties in the state of Kentucky. Historically, Knox County was formed from Lincoln County. The city of Barbourville is the county seat. With FIPS code of 121, Knox County has a population of 29,909 and area of 388 square miles (1,005 km2).
List of all cities in Knox County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Artemus, KY | 40903 | 606 |
| Bailey Switch, KY | 40906 | 606 |
| Barbourville, KY | 40906 | 606 |
| Baughman, KY | 40906 | 606 |
| Bimble, KY | 40915 | 606 |
| Bryants Store, KY | 40921 | 606 |
| Cannon, KY | 40923 | 606 |
| Crane Nest, KY | 40906 | 606 |
| Dewitt, KY | 40930 | 606 |
| Flat Lick, KY | 40935 | 606 |
| Gausdale, KY | 40906 | 606 |
| Girdler, KY | 40943 | 606 |
| Gray, KY | 40734 | 606 |
| Green Road, KY | 40946 | 606 |
| Heidrick, KY | 40949 | 606 |
| Himyar, KY | 40906 | 606 |
| Hinkle, KY | 40953 | 606 |
| Jarvis, KY | 40906 | 606 |
| Kayjay, KY | 40906 | 606 |
| Mills, KY | 40935 | 606 |
| Salt Gum, KY | 40935 | 606 |
| Scalf, KY | 40982 | 606 |
| Swanpond, KY | 40906 | 606 |
| Tedders, KY | 40906 | 606 |
| Trosper, KY | 40995 | 606 |
| Walker, KY | 40997 | 606 |
| Woodbine, KY | 40771 | 606 |
| Woollum, KY | 40906 | 606 |