Wisconsin Property Tax Assessors

Marathon County, Wisconsin Tax Assessors' Office

Marathon County Assessors Phone Number
Marathon County Treasurer
500 Forest Street
Marathon County Courthouse
Wausau, Wisconsin 54403
Marathon County Assessors Fax Number 715-261-1166 (Fax)

Where is the Marathon County Tax Assessor's Office?

The Marathon County Tax Assessor, Treasurer & Delinquent Property Taxes Office is located in the Marathon County Courthouse building in Wausau, Wisconsin.

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

The Marathon 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 Marathon 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 Marathon 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 Marathon County Assessor's Office at (715) 261 1150 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 Marathon County Facts:

The median home value in Marathon County is between $137,723.00 and $141,277.00. Property tax rates are based on property values.

How can I contact Marathon County?

You can try contacting the Marathon 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 Marathon County is located in the County Courthouse in Wausau, which is where the Marathon County Assessors' Office is also located. You can direct your general inquiries to Marathon County with the contact info listed below.

Marathon County Phone Number


Marathon County Fax Number


Marathon County County Courthouse Address

County Courthouse
500 Forest St
Wausau, WI 54403-5554

Useful Marathon County Links:

Links broken? Please contact us if any of our Marathon County links are not working or are out-of-date.