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 54556 Prentice Price County 534, 715
WI 54557 Presque Isle Vilas County 534, 715, 906
WI 54558 Saint Germain Vilas County 534, 715
WI 54559 Saxon Iron County 534, 715, 906
WI 54560 Sayner Vilas County 534, 715
WI 54561 Star Lake Vilas County 534, 715
WI 54562 Three Lakes Oneida County 534, 715
WI 54563 Tony Rusk County 534, 715
WI 54564 Tripoli Oneida County 534, 715
WI 54565 Upson Iron 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.