Simpson County ZIP Codes
Kentucky, United States · 2 codes
Simpson County in Kentucky has 2 ZIP codes, from 42134 to 42135, serving 2 places.
ZIP codes in Simpson
Frequently asked questions
What is the ZIP code of Simpson?
Simpson has 2 ZIP codes, from 42134 to 42135. The table lists the places each one serves.
How many places are listed in Simpson County?
2 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.