There are 8 zip codes in Warren County, Kentucky. The most populated is 42101, located in Bowling Green. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
42101Bowling Green62,041
42104Bowling Green40,285
42103Bowling Green22,130
42171Smiths Grove7,073
42122Alvaton5,385
42274Rockfield2,593
42159Oakland1,384
42170Woodburn1,378

Warren County, Kentucky Zip Codes by Population (2024)