Seward, Winnebago County, Illinois Property Taxes
Property Taxes in Seward, Illinois
Median Seward, Illinois effective property tax rate: 2.29%, significantly higher than the national median of 1.02%, and lower than the Illinois state median of 2.33%.
Median Seward, Illinois home value: $133,035
Median annual Seward, Illinois tax bill: $3,061, $661 higher than the national median property tax bill of $2,400.
How are property taxes in Winnebago calculated?
Property taxes in Seward, 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 Seward's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Seward, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Seward, Winnebago County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.29%
Estimate Property Tax Bill
$3,047
$2,827
How Does the Seward Property Tax Calculator Work?
Use this Seward property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Seward's median effective tax rate of 2.29% — based on actual property records in Winnebago 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 Seward'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 Seward: rates are 2.29% in 61077, with no variation across the city, 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 Seward.
About Seward Property Taxes
About Property Taxes in Seward, Winnebago, Illinois
Seward’s median effective property tax rate of 2.29% is lower than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Winnebago 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 Seward. Homeowners in ZIP code 61077 carry a median effective rate of 2.29%, while those in the same ZIP code also pay 2.29%. This spread of 0 percentage points across the city reflects how school district boundaries and local assessment districts are drawn across Winnebago County.
Seward homeowners who believe their assessed value is too high can file a formal appeal with the local 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 Seward, Winnebago 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 Seward's effective property tax rate to other cities in Illinois and the median property tax rates in Illinois and the U.S.
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 Seward Tax Rate
2.29%
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 Winnebago County Tax Rate
2.49%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Seward, Winnebago County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61077 | 1.69% | 2.11% | 2.29% | 2.40% | 2.43% |
Source: Ownwell
Property Tax Assessment Values Across Seward, Winnebago County, Illinois
When examining property taxes in Seward, 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 Winnebago 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 are sent in July each year. They’ll typically reach your mailbox by the middle of July.
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. The median home price in Seward is $133,035, and the median tax bill is $3,061, compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400. For example, ZIP code 61077 has the highest median home price at $133,035.
Property Tax Assessment Values Across Seward, Winnebago County, Illinois
Source: Ownwell
$3,897
$148,167
$292,437
Median Seward Market Value
$133,035
Median Winnebago County Market Value
$151,126
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Seward, Winnebago County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61077 | $106,875 | $109,821 | $133,035 | $157,852 | $173,829 |
Source: Ownwell
Property Tax Bills Across Seward, Winnebago County, Illinois
Property tax bills in Seward are based on the assessed value of a home, not its market price alone. Local taxing authorities apply tax rates to that assessed value to determine the final bill, and homeowners in Winnebago County can see costs vary depending on property characteristics and location. With a median home price of $133,035, the typical tax burden is significant, especially when compared with the national median property tax bill of $2,400.
In Seward, the median property tax bill is $3,061, which is higher than the national median and reflects how local assessments and rates shape what homeowners owe. Bills can range from $2,348 at the 25th percentile to $3,703 at the 75th percentile, with the 90th percentile reaching $4,052. That means two similar homes may still receive different bills if their assessed values or taxing jurisdictions differ. For homeowners, this can affect monthly budgeting and long-term housing costs, making it important to understand how the tax bill is calculated.
Median Seward Tax Bill
$3,061
Median Winnebago County Tax Bill
$3,565
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Seward, Winnebago County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61077 | $1,570 | $2,348 | $3,061 | $3,703 | $4,052 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| Winnebago Tax Assessor | |
| Website | taxes.wincoil.gov |