Warren County ZIP Codes
Kentucky, United States · 10 codes
Warren County in Kentucky has 10 ZIP codes, from 42101 to 42274, serving 10 places.
ZIP codes in Warren
Frequently asked questions
What is the ZIP code of Warren?
Warren has 10 ZIP codes, from 42101 to 42274. The table lists the places each one serves.
How many places are listed in Warren County?
10 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.