Okanogan County ZIP Codes
Washington, United States · 19 codes
Okanogan County in Washington has 19 ZIP codes, from 98812 to 99155, serving 19 places.
ZIP codes in Okanogan
Frequently asked questions
What is the ZIP code of Okanogan?
Okanogan has 19 ZIP codes, from 98812 to 99155. The table lists the places each one serves.
How many places are listed in Okanogan County?
19 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.