Swansea, St. Clair County, Illinois Property Taxes

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Property Taxes in Swansea, Illinois

Median Swansea, Illinois effective property tax rate: 2.47%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Swansea, Illinois home value: $158,656
Median annual Swansea, Illinois tax bill: $3,730, $1,330 higher than the national median property tax bill of $2,400.

How are property taxes in St. Clair calculated?

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

Last Updated April 13, 2026

Swansea, St. Clair County, Illinois Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.47%

Estimate Property Tax Bill

$3,919

$3,637

How Does the Swansea Property Tax Calculator Work?

Use this Swansea property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Swansea's median effective tax rate of 2.47% — based on actual property records in St. Clair County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment authority uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Swansea'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 Swansea: rates range from 2.47% in 62226 to 2.47% in 62226, 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 Swansea.

About Swansea Property Taxes

About Property Taxes in Swansea, St. Clair, Illinois

Swansea’s median effective property tax rate of 2.47% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the St. Clair County base levy combined with local school district levies and Special service areas (SSAs) that vary by subdivision throughout the city.

Property tax rates are not uniform across Swansea. Homeowners in ZIP code 62226 carry a median effective rate of 2.47%, while those in 62226 pay 2.47%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across St. Clair County. Understanding which part of Swansea you live in can make a meaningful difference to your annual tax bill.

Swansea 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 Swansea, St. Clair 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 Swansea'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 Swansea, St. Clair County, Illinois

Source: Ownwell

2.14%

4.24%

6.33%

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 Swansea Tax Rate

2.47%

Median Effective St. Clair County Tax Rate

2.51%

Median Effective Illinois Tax Rate

2.33%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Swansea, St. Clair County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
62226	1.85%	2.23%	2.47%	2.70%	2.85%

Source: Ownwell

Property Tax Assessment Values Across Swansea, St. Clair County, Illinois

When examining property taxes in Swansea, 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 St. Clair 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 St. Clair 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 Swansea.

For example, the median home price in Swansea is $158,656, with tax bills ranging significantly across the county. 62226 has the highest median home price at $158,656.

Property Tax Assessment Values Across Swansea, St. Clair County, Illinois

Source: Ownwell

$18,168

$156,686

$295,204

Median Swansea Market Value

$158,656

Median St. Clair County Market Value

$123,447

Median Illinois Market Value

$227,888

Median United States Market Value

$235,294

Property Tax Assessment Values Across Swansea, St. Clair County, Illinois

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
62226	$79,287	$108,200	$158,656	$225,373	$314,991

Source: Ownwell

Property Tax Bills Across Swansea, St. Clair County, Illinois

Property tax bills in Swansea are based on the assessed value of a home, not its market price, and the local tax rate applied to that assessment. When a property’s assessed value rises, the tax bill can increase even if the homeowner has not made any changes to the home. Local taxing authorities use this value to calculate what each homeowner owes.

For Swansea homeowners, the typical bill reflects a median home price of $158,656, with the median tax bill at $3,730 in ZIP code 62226. That is above the national median property tax bill of $2,400 and above the national median property tax rate of 1.02%. Bills can vary widely, with the 25th percentile at $2,411 and the 75th percentile at $5,387, while the 90th percentile reaches $7,680. This means property taxes can have a significant impact on monthly housing costs and long-term affordability for homeowners.

Property Tax Bills Across Swansea, St. Clair County, Illinois

Source: Ownwell

$608

$3,325

$6,041

Median Swansea Tax Bill

$3,730

Median St. Clair County Tax Bill

$2,978

Median Illinois Tax Bill

$5,277

Median United States Tax Bill

$2,400

Property Tax Bills Across Swansea, St. Clair County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
62226	$1,643	$2,411	$3,730	$5,387	$7,680

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	July 1

Links
St. Clair Tax Assessor
Website	stclairil.devnetwedge.com

Frequently Asked Property Tax Questions in Swansea, Illinois

How are property taxes calculated in Swansea, Illinois?

Property taxes in Swansea, 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 Swansea, Illinois?

To appeal your property taxes in Swansea, 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 Swansea, Illinois?

Common property tax exemptions in Swansea, 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 Swansea, Illinois?

Property tax deadlines in Swansea, 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 Swansea, Illinois?

Ownwell provides professional property tax appeal services in Swansea, 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.