Illinois Property Tax Assessors

Grundy County, Illinois Tax Assessors' Office

Grundy County Assessors Phone Number
Grundy County Supervisor of Assessment
111 East Washington Street
Morris, Illinois 60450
Grundy County Assessors Fax Number 815-941-2126 (Fax)

Where is the Grundy County Tax Assessor's Office?

The Grundy County Tax Assessor Office is located at 111 East Washington Street in Morris, Illinois.

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

The Grundy 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 Grundy 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 Grundy 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 Grundy County Assessor's Office at (815) 941 3269 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 Grundy County Facts:

The median home value in Grundy County is between $187,586.00 and $199,014.00. Property tax rates are based on property values.

How can I contact Grundy County?

You can try contacting the Grundy 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 Grundy County is located in the Administration Center in Morris, which is located at 1320 Union Street. You can direct your general inquiries to Grundy County with the contact info listed below.

Grundy County Phone Number


Grundy County Fax Number


Grundy County Administration Center Address

Administration Center
1320 Union Street
Morris, IL 60450-2426

Useful Grundy County Links:

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