There are 7 zip codes in Washburn County, Wisconsin. The most populated is 54801, located in Spooner. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
548016,088Spooner
548713,296Shell Lake
548592,260Minong
548172,247Birchwood
548701,756Sarona
548881,296Trego
548751,293Springbrook

Zip Codes in Washburn County, Wisconsin by Population (2024)