3 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Leitchfield | 1 | 6,954 | 6,777 | 0.43% | 646 | 11 | City |
| Clarkson | 2 | 980 | 940 | 0.72% | 921 | 1 | City |
| Caneyville | 3 | 540 | 528 | 0.37% | 328 | 2 | City |
Leitchfield is the largest city in Grayson County, with a population of 6,954.
Caneyville is the smallest city in Grayson County, with a population of 540.
There are 3 cities in Grayson County, Kentucky.