City of Pewaukee Property Assessment Data is online here

Property Tax data can be accessed through the  Waukesha County Treasurer’s Office

City of Pewaukee GIS Data (Geographical Information System) can be found here

To obtain property attributes (square foot, year built, lot size, etc...) simply enter Waukesha County and City of Pewaukee online here.

Assessor Data Screen 1
Enter Tax Key Number or Address in the format indicated. If you don’t have the tax key or an exact address, or you want to search around, feel free to enter just the street name.  You will then be taken to your search results.

To see all available data for a property, click on View Full Report.

Assessor Data Screen 2

The mission of the Assessor's Office is to discover, list, and value all taxable property within the City of Pewaukee.  By providing accurate and uniform values, we ensure that the property tax burden is distributed in a fair and equitable manner.

To accomplish its mission, the Assessor's Office uses methods in accordance with the Wisconsin Property Assessment Manual,which is available on this page, Wisconsin State Statutes, and professionally accepted appraisal practices. Other information that is available for assessors to consider includes the Uniform Standards of Professional Appraisal Practice (USPAP) and standards from the International Association of Assessing Officers (IAAO).

Wisconsin State Statute 70.32 states, "Real Property shall be valued by the Assessor in the manner specified in the Wisconsin property assessment manual provided under Section 73.03(2a) from actual view or from the best information that the Assessor can practicably obtain, at the full value which could ordinarily be obtained therefore at private sale".

2019 Assessment Maintenance Year
The City of Pewaukee will only be performing assessment maintenance during the 2019 assessment year.  Properties that have building activity during 2018 (new construction and remodeling), properties that have recently been purchased (recent sales activity) and properties that have requested to have their assessment reviewed will be the emphasis of this assessment year.  Demolished properties, shifts in assessment classification, application of the current year’s agriculture use values, and review of exemptions will also be performed.  Assessment maintenance inspections began in October, 2018 and will conclude with the Board of Review.

Please also note that the Assessor has certain statutory authority to enter land as described in state law (Section 943.13 and 943.15, Wis. Stats.). The ability to enter land is subject to several qualifications and limitations, as described within the foregoing statutes. 

Assessment Guides
2018 Guide for Property Owners
Agricultural Assessment Guide for Wisconsin Property Owners
Guide to Wisconsin Manufacturing Property Assessment
2018 Property Assessment Appeal Guide for Wisconsin Property Owners

Other Resources
2018 Statement of Personal Property form - pdf
2018 Statement of Personal Property - Excel

Open Book and Board of Review
2019 Open Book: To be determined
2019 Board of Review:  To be determined

Property Value Review
If you feel that your property assessment is incorrect, we would be happy to review your assessed value for 2019.  To aid us in the review process, please complete and return to this office the Request for Review of Property Assessment form.  Please include any other documentation that you believe supports your opinion of value.

Property Tax Listing
The City of Pewaukee uses Waukesha County for Property Tax Listing. Please see the Waukesha County Tax Website regarding tax listing or tax bill information. For specific questions please contact the Real Property Tax Listing Division at (262)548-7597 or via email to  For questions regarding outstanding taxes and tax payment records, contact the County Treasurer's office at (262)548-7029. For all GIS related issues, please contact Waukesha County Land Information Systems at (262)896-8270 or via email to

Address & Ownership Changes
All property mailing address changes need to be completed on the Waukesha County Website. Any name change with regard to the ownership of property can only be accomplished with the Waukesha County Register of Deeds.

Waukesha County Screen