Oswego, Kendall County, Illinois Property Taxes
Median Oswego, IL effective property tax rate: 2.82%, significantly higher than the national median of 1.02%, but lower than the Illinois state median of 2.35%.
Median Oswego, IL home value: $286,506
Median annual Oswego, IL tax bill: $7,898, $5,498 higher than the national median property tax bill of $2,400.
How are property taxes in Kendall calculated?
Property taxes in Oswego, IL 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 Oswego’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Oswego, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Oswego, Kendall County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.82%
Estimate Property Tax Bill
$8,079
$7,498
Property Tax Rates Across Oswego, Kendall County, Illinois
Local government entities set tax rates, which can vary widely within a state. Each year, counties estimate their required budget to provide services and divide that by the total value of all taxable property within their 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.
Oswego in Kendall County, Illinois, has a property tax rate that stands out when compared to other cities in Illinois. With a median property tax rate of 2.82%, Oswego's rate is significantly higher than the national median property tax rate of 1.02%. This means that property owners in Oswego may find themselves paying more in property taxes compared to the average American homeowner. However, it's important to note that these tax rates are reflective of the local government's efforts to fund and maintain essential services and infrastructure. Comparing Oswego's tax rate to the national average provides insight into the region's fiscal landscape and helps property owners understand their financial commitments.
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 Oswego Tax Rate
2.82%
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 Kendall County Tax Rate
2.83%
Median Effective Illinois Tax Rate
2.35%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Oswego, Kendall County, Illinois
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
60543 | 2.53% | 2.72% | 2.82% | 2.86% | 2.96% |
Source: Ownwell
Property Tax Assessment Values Across Oswego, Kendall County, Illinois
When examining property taxes in Oswego, IL, 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 Kendall County Assessor 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.
In Kendall County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of May. 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 Oswego.
For example, the median home price in Oswego is $286,506, with tax bills ranging significantly across the county. Zip code 60543 has the highest median home price at $286,506.
Property Tax Assessment Values Across Oswego, Kendall County, Illinois
Source: Ownwell

$139,020
$326,543
$514,065
Median Oswego Market Value
$286,506
Median Kendall County Market Value
$264,846
Median Illinois Market Value
$194,700
Median United States Market Value
$235,294
Property Tax Assessment Values Across Oswego, Kendall County, Illinois
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
60543 | $183,899 | $219,507 | $286,506 | $342,874 | $392,209 |
Source: Ownwell
Property Tax Bills Across Oswego, Kendall County, Illinois
In Oswego, located in Kendall County, IL, property tax bills are determined by assessing the market value of a home and applying the local tax rate. The assessed value is a percentage of the market value, and the tax rate is determined by local taxing authorities to meet budget requirements. Homeowners in Oswego face a median property tax bill of $7,898, which is significantly higher than the national median of $2,400. Factors such as changes in property values and local tax levies can influence the final tax bill, impacting homeowners' financial planning.
For homeowners in Oswego, high property tax bills can be a burden. This is where Ownwell steps in to help. By providing property tax appeal and exemption services, Ownwell assists homeowners in potentially lowering their tax bills. Our team of experts analyzes property assessments and identifies discrepancies or opportunities for exemptions, ensuring homeowners pay only their fair share. With Ownwell's expertise, Oswego residents can achieve significant savings on their property taxes, easing the financial strain.
Median Oswego Tax Bill
$7,898
Median Kendall County Tax Bill
$7,273
Median Illinois Tax Bill
$4,715
Median United States Tax Bill
$2,400
Property Tax Bills Across Oswego, Kendall County, Illinois
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
60543 | $4,502 | $5,862 | $7,898 | $9,656 | $11,170 |
Source: Ownwell