Questions on the assessed values on the tax bill should be directed to our Appraiser
Appraiser
Grota Appraisers
Phone: (262) 253-1142
Other questions can be directed to our Treasurer, Cindy Fredrick, (920) 210-5442
Thinking about appealing your assessment? Click here for more information on the process.
FREE assessment data with basic information for Williamstown and other municipalities that contract with Grota Appraisals can be found at Assessor Data.
REALTORS: BILLABLE assessment data with more detailed information for Williamstown and other municipalities that contract with Grota Appraisals can be found at the commercial site for Assessor Data