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 54082 Houlton St. Croix County 534, 651, 715
WI 54101 Abrams Oconto County 920
WI 54102 Amberg Marinette County 534, 715, 906
WI 54103 Armstrong Creek Forest County 534, 715
WI 54104 Athelstane Marinette County 534, 715
WI 54106 Black Creek Outagamie County 534, 715, 920
WI 54107 Bonduel Shawano County 534, 715, 920
WI 54110 Brillion Calumet County 920
WI 54111 Cecil Shawano County 534, 715, 920
WI 54112 Coleman Marinette County 534, 715, 920
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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.