There are 3 zip codes in Washington County, Idaho. The most populated is 83672, located in Weiser. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
836728,736Weiser
83610995Cambridge
83645881Midvale
showing: 3 rows

Zip Codes in Washington County, Idaho by Population (2024)