Johnson County ZIP Codes
Wyoming, United States · 4 codes
Johnson County in Wyoming has 4 ZIP codes, from 82639 to 82840, serving 4 places.
ZIP codes in Johnson
Frequently asked questions
What is the ZIP code of Johnson?
Johnson has 4 ZIP codes, from 82639 to 82840. The table lists the places each one serves.
How many places are listed in Johnson County?
4 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.