| Zip Code | City | Population ↓ |
|---|---|---|
| 42754 | Leitchfield | 15,918 |
| 42726 | Clarkson | 4,960 |
| 42721 | Caneyville | 3,954 |
| 42762 | Millwood | 257 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Grayson County, Kentucky (US Census).