Waukesha County

Where can I obtain my tax key number?

Your tax key number can be found in the upper right corner of your property tax bill. You can also contact your Town Clerk Municipal Contacts or the Waukesha County Register of Deeds Office to obtain your tax key number.

Mailing Address:  515 W. Moreland Blvd. Room AC 230, Waukesha, WI 53188
Reception Desk:  Room AC260
Business Hours: M-F, 8:00 am - 4:30 pm (excluding Holidays)
Phone: (262) 548-7790 | Fax: (262) 896-8071

Office Location Map