Contact Information
- Office Name:
- Grant County Assessor
- Phone:
- (608) 723-2666
- Official Website:
- Visit Website
- County FIPS:
- 55043
- Data Available Online:
- Yes
- Last verified:
- 2026-07-13
Searching Grant County Assessor Records
Data available
On the Tax Parcel Portal Parcel tab, accept the disclaimer if prompted, then search by parcel number, owner last/first name, property address, public land survey (section/township/range), or municipality. Results can include tax year, assessments, tax information, and permits; a separate Permit tab is also available. For map-based lookup, use the county Parcel Explorer GIS viewer.
Additional Information
Grant County, Wisconsin does not operate a single county assessor; each municipality contracts its own assessor, while the county Real Property Lister maintains assessment/tax roll data used countywide. Public parcel, assessment, tax, and permit records are searchable at no cost through the official Land Records Tax Parcel Portal (GCS Web Portal), linked from the county website. A free Parcel Explorer GIS map is also provided for visual parcel lookup. ArcGIS REST services are published for GIS layers.
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