Dewey County ZIP Codes
Oklahoma, United States · 8 codes
Dewey County in Oklahoma has 8 ZIP codes, from 73646 to 73859, serving 8 places.
ZIP codes in Dewey
Frequently asked questions
What is the ZIP code of Dewey?
Dewey has 8 ZIP codes, from 73646 to 73859. The table lists the places each one serves.
How many places are listed in Dewey County?
8 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.