Preemption, Mercer County, Illinois Property Taxes

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Property Taxes in Preemption, Illinois

Median Preemption, Illinois effective property tax rate: 2.57%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Preemption, Illinois home value: $103,635
Median annual Preemption, Illinois tax bill: $3,001, $601 higher than the national median property tax bill of $2,400.

How are property taxes in Mercer calculated?

Property taxes in Preemption, Illinois are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Preemption's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Preemption, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Preemption, Mercer County, Illinois Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.57%

Estimate Property Tax Bill

$2,663

$2,472

How Does the Preemption Property Tax Calculator Work?

Use this Preemption property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Preemption's median effective tax rate of 2.57% — based on actual property records in Mercer County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment process uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Preemption's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Preemption: rates range from 2.57% in 61276 to 2.57% in 61276, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Preemption.

About Preemption Property Taxes

About Property Taxes in Preemption, Mercer, Illinois

Preemption's median effective property tax rate of 2.57% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Mercer County base levy combined with local school district levies and special service areas that vary by subdivision throughout the city.

Property tax rates are not uniform across Preemption. Homeowners in the 61276 ZIP code carry a median effective rate of 2.57%, while those in the same ZIP also pay 2.57%. This reflects how school district boundaries and local assessment districts are drawn across Mercer County. Understanding which part of Preemption you live in can make a meaningful difference to your annual tax bill.

Preemption homeowners who believe their assessed value is too high can file a formal appeal with the Mercer County Tax Assessor before November 7, 2025.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Preemption, Mercer County, Illinois

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Preemption's effective property tax rate to other cities in Illinois and the median property tax rates in Illinois and the U.S.

Property Tax Rates Across Preemption, Mercer County, Illinois

Source: Ownwell

2.57%

2.83%

3.09%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Preemption Tax Rate

2.57%

Median Effective Mercer County Tax Rate

2.81%

Median Effective Illinois Tax Rate

2.33%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Preemption, Mercer County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
61276	2.48%	2.48%	2.57%	2.75%	2.92%

Source: Ownwell

Property Tax Assessment Values Across Preemption, Mercer County, Illinois

When examining property taxes in Preemption, Illinois, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Mercer County appraisal district estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Mercer County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Preemption.

For example, the median home price in Preemption is $103,635, with tax bills ranging significantly across the county. 61276 has the highest median home price at $103,635.

Property Tax Assessment Values Across Preemption, Mercer County, Illinois

Source: Ownwell

$103,635

$155,352

$207,068

Median Preemption Market Value

$103,635

Median Mercer County Market Value

$150,030

Median Illinois Market Value

$227,888

Median United States Market Value

$235,294

Property Tax Assessment Values Across Preemption, Mercer County, Illinois

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
61276	$51,585	$74,250	$103,635	$218,168	$261,441

Source: Ownwell

Property Tax Bills Across Preemption, Mercer County, Illinois

Property tax bills in Preemption are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. That means the tax bill is shaped by both the value of the home and the tax rates set by local taxing authorities in Mercer County. For homeowners, this can create meaningful differences from one property to another, even within the same city.

With a median home price of $103,635, property taxes can represent a significant ongoing cost. The median property tax bill in the area is $3,001, which is above the national median property tax bill of $2,400 and reflects a higher-than-average burden for many homeowners. Bills can vary widely, with the 25th percentile at $1,947 and the 75th percentile at $5,786. At the 90th percentile, the bill reaches $6,488, showing how much taxes can rise for higher-valued homes.

Property Tax Bills Across Preemption, Mercer County, Illinois

Source: Ownwell

$2,566

$4,604

$6,641

Median Preemption Tax Bill

$3,001

Median Mercer County Tax Bill

$4,254

Median Illinois Tax Bill

$5,277

Median United States Tax Bill

$2,400

Property Tax Bills Across Preemption, Mercer County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
61276	$1,416	$1,947	$3,001	$5,786	$6,488

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	November 7

Links
Mercer Tax Assessor
Website	merceril.devnetwedge.com

Frequently Asked Property Tax Questions in Preemption, Illinois

How are property taxes calculated in Preemption, Illinois?

Property taxes in Preemption, Illinois are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Preemption, Illinois?

To appeal your property taxes in Preemption, Illinois, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Preemption, Illinois?

Common property tax exemptions in Preemption, Illinois include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Preemption, Illinois?

Property tax deadlines in Preemption, Illinois vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Preemption, Illinois?

Ownwell provides professional property tax appeal services in Preemption, Illinois. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.