Washington County ZIP Codes
Idaho, United States · 3 codes
Washington County in Idaho has 3 ZIP codes, from 83610 to 83672, serving 3 places.
ZIP codes in Washington
Frequently asked questions
What is the ZIP code of Washington?
Washington has 3 ZIP codes, from 83610 to 83672. The table lists the places each one serves.
How many places are listed in Washington 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.