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Wisconsin Zip Codes



Wisconsin Wisconsin is a state located in the north-central United States and is part of the Midwest and Great Lakes regions. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin is the 23rd most extensive and the 20th most populous of the 50 United States. Wisconsin s capital is Madison, and its largest city is Milwaukee. The state is divided into 72 counties.

State Zip Code City County Area Codes
WI 53110 Cudahy Milwaukee County 414
WI 53114 Darien Walworth County 262, 608
WI 53115 Delavan Walworth County 262, 608
WI 53118 Dousman Waukesha County 262
WI 53119 Eagle Waukesha County 262
WI 53120 East Troy Walworth County 262
WI 53121 Elkhorn Walworth County 262, 608
WI 53122 Elm Grove Waukesha County 262, 414
WI 53125 Fontana Walworth County 262
WI 53126 Franksville Racine County 262, 414
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Map of Wisconsin

ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired.

ZIP codes designate only delivery points within the United States and its dependencies, as well as locations of its armed forces. There are no ZIP codes reserved for designating mail bound for foreign destinations (with the exception of U.S. military units stationed outside of the United States), and therefore, international outbound mail should not include a ZIP code in the delivery address. The last line of a foreign address must only show the name of the country of destination.

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