Mercer County ZIP Codes
Kentucky, United States · 3 codes
Mercer County in Kentucky has 3 ZIP codes, from 40310 to 40372, serving 3 places.
ZIP codes in Mercer
Frequently asked questions
What is the ZIP code of Mercer?
Mercer has 3 ZIP codes, from 40310 to 40372. The table lists the places each one serves.
How many places are listed in Mercer County?
3 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.