8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 42101 | Bowling Green | 65,421 |
| 42104 | Bowling Green | 42,076 |
| 42103 | Bowling Green | 21,911 |
| 42171 | Smiths Grove | 6,723 |
| 42122 | Alvaton | 5,513 |
| 42274 | Rockfield | 2,157 |
| 42170 | Woodburn | 1,938 |
| 42159 | Oakland | 1,699 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Warren County, Kentucky (US Census).