Founded in 1810, Grayson County is one of 120 counties in the state of Kentucky. Historically, Grayson County was formed from Hardin County and Ohio County. The city of Leitchfield is the county seat. With FIPS code of 85, Grayson County has a population of 26,524 and area of 504 square miles (1,305 km2).
List of all cities in Grayson County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Big Clifty, KY | 42712 | 270 |
| Caneyville, KY | 42721 | 270 |
| Clarkson, KY | 42726 | 270 |
| Falls of Rough, KY | 40119 | 270 |
| Glen Dean, KY | 40119 | 270 |
| Leitchfield, KY | 42754 | 270 |
| Leitchfield, KY | 42755 | 270 |
| Millerstown, KY | 42726 | 270 |
| Millwood, KY | 42762 | 270 |
| Neafus, KY | 42721 | 270 |
| Peonia, KY | 42726 | 270 |
| Rock Creek, KY | 42726 | 270 |
| Spring Lick, KY | 42721 | 270 |
| Steff, KY | 42721 | 270 |
| Vanzant, KY | 40119 | 270 |
| Wax, KY | 42726 | 270 |