U.S. postal lookup

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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Wisconsin ZIP Codes

Complete postal directory, details, and geographic map for the State of Wisconsin.

State ZIP Code City County Area Codes
WI 54859 Minong Washburn County 534, 715
WI 54861 Odanah Ashland County 534, 715
WI 54862 Ojibwa Sawyer County 534, 715
WI 54864 Poplar Douglas County 534, 715
WI 54865 Port Wing Bayfield County 534, 715
WI 54867 Radisson Sawyer County 534, 715
WI 54868 Rice Lake Barron County 534, 715
WI 54870 Sarona Washburn County 534, 715
WI 54871 Shell Lake Washburn County 534, 715
WI 54872 Siren Burnett County 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.