Knox County, Illinois Tax Assessors' Office
Knox County Supervisor of Assessments 121 S. Prairie Street, Suite 1
Galesburg, Illinois 61401
309-343-0063 (Fax) Where is the Knox County Tax Assessor's Office?
What can the Knox County Assessor's Office do for me?
The Knox 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 Knox 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 Knox 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 Knox County Assessor's Office at (309) 345 3845 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 Knox County Facts:
The median home value in Knox County is between $78,404.00 and $82,796.00. Property tax rates are based on property values.
How can I contact Knox County?
You can try contacting the Knox 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 Knox County is located in the County Courthouse in Galesburg, which is located at 200 S Cherry St. You can direct your general inquiries to Knox County with the contact info listed below.
Knox County Phone Number
Knox County Fax Number
Knox County County Courthouse Address
County Courthouse
200 S Cherry St
Galesburg, IL 61401-4912
Useful Knox County Links:
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Knox County Tax Records
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Knox County Government Homepage
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Knox County Assessors' Office Homepage
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GIS Map & Parcel Search