Jefferson County ZIP Codes
Kansas, United States · 9 codes
Jefferson County in Kansas has 9 ZIP codes, from 66054 to 66512, serving 9 places.
ZIP codes in Jefferson
Frequently asked questions
What is the ZIP code of Jefferson?
Jefferson has 9 ZIP codes, from 66054 to 66512. The table lists the places each one serves.
How many places are listed in Jefferson County?
9 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.