North Henderson, Mercer County, Illinois Property Taxes

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Property Taxes in North Henderson, Illinois

Median North Henderson, Illinois effective property tax rate: 2.80%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median North Henderson, Illinois home value: $189,270
Median annual North Henderson, Illinois tax bill: $5,182, $2,782 higher than the national median property tax bill of $2,400.

How are property taxes in Mercer calculated?

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

Last Updated April 13, 2026

North Henderson, Mercer County, Illinois Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.8%

Estimate Property Tax Bill

$5,300

$4,918

How Does the North Henderson Property Tax Calculator Work?

Use this North Henderson property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies North Henderson's median effective tax rate of 2.80% — based on actual property records in Mercer County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies North Henderson'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 North Henderson: rates range from 2.80% in 61466 to 2.80% in 61466, 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 North Henderson.

About North Henderson Property Taxes

About Property Taxes in North Henderson, Mercer, Illinois

North Henderson's median effective property tax rate of 2.80% 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 can vary by subdivision throughout the city.

Property tax rates are not uniform across North Henderson. Homeowners in the 61466 ZIP code carry a median effective rate of 2.80%, while those in the same ZIP code also pay 2.80%. This means the rate is consistent across the city, but it still sits above both the state and national medians, which can make a meaningful difference to your annual tax bill.

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

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 North Henderson, 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 North Henderson'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 North Henderson, 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 North Henderson Tax Rate

2.80%

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 North Henderson, Mercer County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
61466	2.22%	2.63%	2.80%	2.96%	3.08%

Source: Ownwell

Property Tax Assessment Values Across North Henderson, Mercer County, Illinois

When examining property taxes in North Henderson, 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. Mercer County 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.

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 North Henderson.

For example, the median home price in North Henderson is $189,270, with tax bills ranging significantly across the county. The median tax bill is $5,182, compared with the national median property tax rate of 1.02% and national median property tax bill of $2,400. Zip code 61466 has the highest median home price at $189,270.

Property Tax Assessment Values Across North Henderson, Mercer County, Illinois

Source: Ownwell

$103,635

$155,352

$207,068

Median North Henderson Market Value

$189,270

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 North Henderson, Mercer County, Illinois

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
61466	$51,096	$94,132	$189,270	$309,608	$375,698

Source: Ownwell

Property Tax Bills Across North Henderson, Mercer County, Illinois

Property tax bills in North Henderson are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. Local taxing authorities set the rate, and the final bill reflects the combined impact of county, city, school, and other local levies.

For a home with a median market value of $189,270, the property tax bill can vary widely depending on the assessment and the applicable tax rate. In Mercer County, the median tax bill is $5,182, which is higher than the national median property tax bill of $2,400. That means homeowners in North Henderson may face a heavier tax burden than many homeowners across the country.

The amount owed affects monthly housing costs, escrow payments, and overall affordability. Homes with higher assessed values or fewer exemptions generally receive larger bills, while lower assessments can reduce what homeowners pay.

Property Tax Bills Across North Henderson, Mercer County, Illinois

Source: Ownwell

$2,566

$4,604

$6,641

Median North Henderson Tax Bill

$5,182

Median Mercer County Tax Bill

$4,254

Median Illinois Tax Bill

$5,277

Median United States Tax Bill

$2,400

Property Tax Bills Across North Henderson, Mercer County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
61466	$1,189	$2,466	$5,182	$8,548	$10,654

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 North Henderson, Illinois

How are property taxes calculated in North Henderson, Illinois?

Property taxes in North Henderson, 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 North Henderson, Illinois?

To appeal your property taxes in North Henderson, 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 North Henderson, Illinois?

Common property tax exemptions in North Henderson, 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 North Henderson, Illinois?

Property tax deadlines in North Henderson, 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 North Henderson, Illinois?

Ownwell provides professional property tax appeal services in North Henderson, 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.