Assessor Offices in Waukesha County, Wisconsin

There are 6 Assessor Offices in Waukesha County, Wisconsin, serving a population of 396,731 people in an area of 550 square miles. There is 1 Assessor Office per 66,121 people, and 1 Assessor Office per 91 square miles.

In Wisconsin, Waukesha County is ranked 57th of 72 counties in Assessor Offices per capita, and 3rd of 72 counties in Assessor Offices per square mile.

List of Waukesha County Assessor Offices

Find Waukesha County, Wisconsin assessor, assessment, auditor's, and appraiser's offices, revenue commissions, GIS, and tax equalization departments.


Mukwonago Assessor 440 River Crest Court Mukwonago, WI

Muskego Assessor w182s8200 Racine Avenue Muskego, WI

Oconomowoc Assessor 174 East Wisconsin Avenue Oconomowoc, WI

Pewaukee Assessor W240N3065 Pewaukee Road Pewaukee, WI

Waukesha County Property Lister 515 West Moreland Boulevard Waukesha, WI

Waukesha Town Assessor W250 S3567 Center Road Waukesha, WI

About the Waukesha County Assessor Office

Assessor Offices in Waukesha County, WI are responsible for assessing the values of all taxable property within their jurisdictions. Assessors appraise values of all land and commercial property (real property), and business' fixed asset (personal property). The office determines property tax values, tax rates, maintains and updates the local tax assessment rolls.

Property owners may contact the Department of Assessment for questions about:
  • Waukesha County property tax appeals and challenges
  • Property tax assessments and reassessments
  • Waukesha County GIS maps, plat maps, and property boundaries
  • Delinquent property taxes
  • Waukesha County, WI property tax payments and due dates
  • Assessment rolls and property tax rates

Waukesha County Home & Property Tax Statistics

Find Waukesha County Home Values, Property Tax Payments (Annual), Property Tax Collections (Total), and Housing Characteristics. Data Source: U.S. Census Bureau; American Community Survey, 2017 ACS 5-Year Estimates.

Waukesha County Home Values
 Waukesha CountyWisconsin
Median Home Value$262,700$169,300
Median Rental Cost (per month)$978$813
Waukesha County Property Tax Payments (Annual)
 Waukesha CountyWisconsin
Median Property Taxes$4,102$3,286
Median Property Taxes (Mortgage)$4,196$3,382
Median Property Taxes (No Mortgage)$3,932$3,088
Waukesha County Property Tax Collections (Total)
 Waukesha CountyWisconsin
Property Taxes$554,209,100$5,563,019,600
Property Taxes (Mortgage)$390,114,100$3,746,507,900
Property Taxes (No Mortgage)$164,095,000$1,816,511,700
Waukesha County Housing Characteristics
 Waukesha CountyWisconsin
Total Housing Units163,7552,668,692
Occupied Housing Units156,996 (95.9%)2,328,754 (87.3%)
Vacant Housing Units6,759 (4.1%)339,938 (12.7%)
Owner Occupied Housing Units119,721 (76.3%)1,559,308 (67.0%)
Renter Occupied Housing Units37,275 (23.7%)769,446 (33.0%)
Housing Units (Mortgage)69.1%64.8%
Housing Units (No Mortgage)30.9%35.2%