Harmon County ZIP Codes
Oklahoma, United States · 3 codes
Harmon County in Oklahoma has 3 ZIP codes, from 73544 to 73571, serving 3 places.
ZIP codes in Harmon
Frequently asked questions
What is the ZIP code of Harmon?
Harmon has 3 ZIP codes, from 73544 to 73571. The table lists the places each one serves.
How many places are listed in Harmon 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.