Wahkiakum County ZIP Codes
Washington, United States · 4 codes
Wahkiakum County in Washington has 4 ZIP codes, from 98612 to 98647, serving 4 places.
ZIP codes in Wahkiakum
Frequently asked questions
What is the ZIP code of Wahkiakum?
Wahkiakum has 4 ZIP codes, from 98612 to 98647. The table lists the places each one serves.
How many places are listed in Wahkiakum 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.