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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Washburn County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Washburn County.

County State ZIP Code City Area Codes
Washburn County WI 54801 Spooner 534, 715
Washburn County WI 54817 Birchwood 534, 715
Washburn County WI 54859 Minong 534, 715
Washburn County WI 54870 Sarona 534, 715
Washburn County WI 54871 Shell Lake 534, 715
Washburn County WI 54875 Springbrook 534, 715
Washburn County WI 54888 Trego 534, 715

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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.