Carrier Mills, Williamson County, Illinois Property Taxes

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Property Taxes in Carrier Mills, Illinois

Median Carrier Mills, Illinois effective property tax rate: 2.31%, significantly lower than the national median of 1.02%, and lower than the Illinois state median of 2.33%.
Median Carrier Mills, Illinois home value: $95,925
Median annual Carrier Mills, Illinois tax bill: $1,937, lower than the national median property tax bill of $2,400.

How are property taxes in Williamson calculated?

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

Last Updated April 13, 2026

Carrier Mills, Williamson County, Illinois Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.31%

Estimate Property Tax Bill

$2,216

$2,056

How Does the Carrier Mills Property Tax Calculator Work?

Use this Carrier Mills property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Carrier Mills' median effective tax rate of 2.31% — based on actual property records in Williamson County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment 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 Carrier Mills' 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 Carrier Mills: rates range from 2.31% in 62917 to 2.31% in 62917, 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 Carrier Mills.

About Carrier Mills Property Taxes

About Property Taxes in Carrier Mills, Williamson, Illinois

Carrier Mills’s median effective property tax rate of 2.31% is lower than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Williamson 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 Carrier Mills. Homeowners in ZIP code 62917 carry a median effective rate of 2.31%, while the lowest rate is also 2.31%. This reflects how school district boundaries and local assessment districts are drawn across Williamson County. Understanding where you live in Carrier Mills can make a meaningful difference to your annual tax bill.

Carrier Mills homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the June 1, 2026 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 Carrier Mills, Williamson 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 Carrier Mills'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 Carrier Mills, Williamson County, Illinois

Source: Ownwell

1.86%

2.24%

2.62%

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 Carrier Mills Tax Rate

2.31%

Median Effective Williamson County Tax Rate

2.31%

Median Effective Illinois Tax Rate

2.33%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Carrier Mills, Williamson County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
62917	1.71%	2.10%	2.31%	2.57%	2.60%

Source: Ownwell

Property Tax Assessment Values Across Carrier Mills, Williamson County, Illinois

When examining property taxes in Carrier Mills, 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 Williamson County assessment office 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 Williamson 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 Carrier Mills.

For example, the median home price in Carrier Mills is $95,925, with tax bills ranging significantly across the county. 62917 has the highest median home price at $95,925.

Property Tax Assessment Values Across Carrier Mills, Williamson County, Illinois

Source: Ownwell

$28,710

$84,180

$139,650

Median Carrier Mills Market Value

$95,925

Median Williamson County Market Value

$92,430

Median Illinois Market Value

$227,888

Median United States Market Value

$235,294

Property Tax Assessment Values Across Carrier Mills, Williamson County, Illinois

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
62917	$16,818	$33,045	$95,925	$173,779	$235,629

Source: Ownwell

Property Tax Bills Across Carrier Mills, Williamson County, Illinois

Property tax bills in Carrier Mills are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. The assessed value is then adjusted by any exemptions or other qualifying factors before the final bill is set. For homeowners, this means that changes in market value can directly affect what they owe each year.

With a median home price of $95,925, property taxes can still vary widely from one home to another. The 25th percentile tax bill is $832, while the 75th percentile is $4,145 and the 90th percentile reaches $5,095. That spread shows how differences in assessed value and local tax treatment can lead to very different bills for similar properties.

In Carrier Mills, the median tax bill is $1,937 in ZIP code 62917, which is below the national median property tax bill of $2,400.

Property Tax Bills Across Carrier Mills, Williamson County, Illinois

Source: Ownwell

$380

$1,663

$2,946

Median Carrier Mills Tax Bill

$1,937

Median Williamson County Tax Bill

$1,966

Median Illinois Tax Bill

$5,277

Median United States Tax Bill

$2,400

Property Tax Bills Across Carrier Mills, Williamson County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
62917	$422	$832	$1,937	$4,145	$5,095

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	June 1

Links
Williamson Tax Assessor
Website	williamsonil.devnetwedge.com

Frequently Asked Property Tax Questions in Carrier Mills, Illinois

How are property taxes calculated in Carrier Mills, Illinois?

Property taxes in Carrier Mills, 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 Carrier Mills, Illinois?

To appeal your property taxes in Carrier Mills, 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 Carrier Mills, Illinois?

Common property tax exemptions in Carrier Mills, 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 Carrier Mills, Illinois?

Property tax deadlines in Carrier Mills, 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 Carrier Mills, Illinois?

Ownwell provides professional property tax appeal services in Carrier Mills, 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.