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.

42,735 verified records
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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 53962 Union Center Juneau County 608
WI 53963 Waupun Dodge County 920
WI 53964 Westfield Marquette County 534, 608, 715, 920
WI 53965 Wisconsin Dells Sauk County 608
WI 53968 Wonewoc Juneau County 608
WI 53969 Wyocena Columbia County 608
WI 54001 Amery Polk County 534, 715
WI 54002 Baldwin St. Croix County 534, 715
WI 54003 Beldenville Pierce County 534, 715
WI 54004 Clayton Polk 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.