Property Tax 101

Mercer County, Illinois - Assessor's Office

The Mercer County Assessor is responsible for appraising real estate and assessing a property tax on properties located in Mercer County, Illinois. You can contact the Mercer County Assessor for:

• Reporting upgrades or improvements
• Your property tax bill
• Paying your property tax
• Appealing your property tax appraisal
• Information on your property's tax assessment
• Checking the Mercer County property tax due date

100 SE 3rd StThe Mercer County Assessor's Office is located in Aledo, Illinois. Aledo is the county seat of Mercer County, where most local government offices are located. The assessor's office is located in the same building as the Mercer County Courthouse, at 100 SE 3rd Street.

Mercer County Assessor Contact Information

Mercer County Assessor's Office Services

There are three major roles involved in administering property taxes - Tax Assessor, Property Appraiser, and Tax Collector. Note that in some counties, one or more of these roles may be held by the same individual or office. For example, the Mercer County Tax Assessor may also serve as the Mercer County Tax Appraiser.

1. The Mercer County Tax Assessor is responsible for setting property tax rates and collecting owed property tax on real estate located in Mercer County.
2. The Mercer County Property Appraiser is responsible for determining the taxable value of each piece of real estate, which the Tax Assessor will use to determine the owed property tax.
3. The Mercer County Tax Collector is responsible for collecting property tax from property owners. They issue yearly tax bills to all property owners in Mercer County, and work with the sheriff's office to foreclose on properties with delinquent taxes.

When contacting Mercer County about your property taxes, make sure that you are contacting the correct office. You can call the Mercer County Tax Assessor's Office for assistance at 309-582-7814. Remember to have your property's Tax ID Number or Parcel Number available when you call!

If you have documents to send, you can fax them to the Mercer County assessor's office at 309-582-2541. Please call the assessor's office in Aledo before you send documents or if you need to schedule a meeting. If you have general questions, you can call the Mercer County Courthouse at 309-582-7021.

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Find the tax assessor for a different Illinois county

Find property records for Mercer County

The median property tax in Mercer County, Illinois is $1,961.00

All of the Mercer County information on this page has been verified and checked for accuracy.
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