How to Write a Wisconsin Address (With Examples)

Address basics  |   |  2 min read

Here is how to write a mailing address in Wisconsin, with examples from Madison and Milwaukee and the most common mistakes to avoid.

The standard format

RECIPIENT NAME STREET NUMBER AND NAME, UNIT CITY, WI ZIP CODE

The state is always written as WI, two capital letters with no periods. USPS prefers the city, state and ZIP on the same final line.

Example: Madison

Wei Martinez 1733 Park Ct Madison, WI 53704

Example with an apartment in Milwaukee

Luis Walker 994 Washington Ct Apt 36B Milwaukee, WI 53211

Example with a PO Box

Susan Jackson PO Box 964 Madison, WI 53726

PO Boxes often have their own ZIP code, separate from street addresses in the same town. Check the ZIP with the post office that holds the box.

Common mistakes

  • Mixing up WI with WA (Washington) and WV (West Virginia). These codes look similar and cause misrouted mail.
  • Writing the full state name or an old abbreviation instead of WI.
  • Putting the apartment number on a line below the street address.
  • Using a ZIP code from a neighboring city. One city can have many codes, but each street belongs to a specific one.

Counties and local details

Wisconsin is divided into 72 counties. The county does not appear in a mailing address, but it matters for sales tax, elections and some shipping rules, so many business systems store it separately.

Create realistic Wisconsin addresses for testing, with real cities, counties and ZIP codes.

Generate Wisconsin addresses