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 54113 Combined Locks Outagamie County 920
WI 54114 Crivitz Marinette County 534, 715, 920
WI 54115 De Pere Brown County 920
WI 54119 Dunbar Marinette County 534, 715
WI 54120 Fence Florence County 534, 715
WI 54121 Florence Florence County 534, 715, 906
WI 54123 Forest Junction Calumet County 920
WI 54124 Gillett Oconto County 534, 715, 920
WI 54125 Goodman Marinette County 534, 715
WI 54126 Greenleaf Brown County 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.