Whitman County ZIP Codes
Washington, United States · 22 codes
Whitman County in Washington has 22 ZIP codes, from 99017 to 99333, serving 22 places.
ZIP codes in Whitman
Frequently asked questions
What is the ZIP code of Whitman?
Whitman has 22 ZIP codes, from 99017 to 99333. The table lists the places each one serves.
How many places are listed in Whitman County?
22 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.