Jefferson County ZIP Codes
Missouri, United States · 20 codes
Jefferson County in Missouri has 20 ZIP codes, from 63010 to 63070, serving 20 places.
ZIP codes in Jefferson
Frequently asked questions
What is the ZIP code of Jefferson?
Jefferson has 20 ZIP codes, from 63010 to 63070. The table lists the places each one serves.
How many places are listed in Jefferson County?
20 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.