U.S. POSTAL CODE DIRECTORY

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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 54140 Little Chute Outagamie County 920
WI 54141 Little Suamico Oconto County 920
WI 54143 Marinette Marinette County 534, 715, 906
WI 54149 Mountain Oconto County 534, 715, 920
WI 54150 Neopit Menominee County 534, 715
WI 54151 Niagara Marinette County 534, 715, 906
WI 54152 Nichols Outagamie County 920
WI 54153 Oconto Oconto County 534, 715, 920
WI 54154 Oconto Falls Oconto County 534, 715, 920
WI 54155 Oneida Brown County 920
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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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