| Zip Code | City | Population ↓ |
|---|---|---|
| 40456 | Mount Vernon | 8,574 |
| 40409 | Brodhead | 3,667 |
| 40460 | Orlando | 1,162 |
| 40445 | Livingston | 926 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Rockcastle County, Kentucky (US Census).