Wisconsin Property Tax Assessors

Grant County, Wisconsin Tax Assessors' Office

Grant County Assessors Phone Number
Grant County Treasurer and Property Lister
111 So. Jefferson Street
Lancaster, Wisconsin 53813
Grant County Assessors Fax Number 608-723-5636 (Fax)

Where is the Grant County Tax Assessor's Office?

The Grant County Tax Assessor, Treasurer, Real Property Lister & Delinquent Property Taxes Office is located at 111 So. Jefferson Street, at the County Courthouse building in Lancaster, Wisconsin.

What can the Grant County Assessor's Office do for me?

The Grant County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in Grant County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a Grant County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the Grant County Assessor's Office at (608) 723 2604 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

Useful Grant County Facts:

The median home value in Grant County is between $116,115.00 and $120,485.00. Property tax rates are based on property values.

How can I contact Grant County?

You can try contacting the Grant County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for Grant County is located in the County Courthouse in Lancaster, which is where the Grant County Assessors' Office is also located. You can direct your general inquiries to Grant County with the contact info listed below.

Grant County Phone Number


Grant County Fax Number


Grant County County Courthouse Address

County Courthouse
111 S Jefferson St
Lancaster, WI 53813-1666

Useful Grant County Links:

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