8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 42101 | Bowling Green | 62,041 |
| 42104 | Bowling Green | 40,285 |
| 42103 | Bowling Green | 22,130 |
| 42171 | Smiths Grove | 7,073 |
| 42122 | Alvaton | 5,385 |
| 42274 | Rockfield | 2,593 |
| 42159 | Oakland | 1,384 |
| 42170 | Woodburn | 1,378 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Warren County, Kentucky (US Census).