Founded in 1802, Adair County is one of 120 counties in the state of Kentucky. Historically, Adair County was formed from Green County. The city of Columbia is the county seat. With FIPS code of 1, Adair County has a population of 18,932 and area of 407 square miles (1,054 km2).
List of all cities in Adair County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Breeding, KY | 42715 | 270 |
| Cane Valley, KY | 42720 | 270 |
| Casey Creek, KY | 42728 | 270 |
| Columbia, KY | 42728 | 270 |
| Cundiff, KY | 42728 | 270 |
| Fairplay, KY | 42728 | 270 |
| Glens Fork, KY | 42741 | 270 |
| Gradyville, KY | 42742 | 270 |
| Knifley, KY | 42753 | 270 |
| Milltown, KY | 42728 | 270 |
| Montpelier, KY | 42728 | 270 |