Wonder Lake, Mchenry County, Illinois Property Taxes
Property Taxes in Wonder Lake, Illinois
Median Wonder Lake, Illinois effective property tax rate: 2.39%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Wonder Lake, Illinois home value: $224,818
Median annual Wonder Lake, Illinois tax bill: $5,146, $2,746 higher than the national median property tax bill of $2,400.
How are property taxes in McHenry calculated?
Property taxes in Wonder Lake, 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 Wonder Lake's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Wonder Lake, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Wonder Lake, Mchenry County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.39%
Estimate Property Tax Bill
$5,373
$4,986
How Does the Wonder Lake Property Tax Calculator Work?
Use this Wonder Lake property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Wonder Lake's median effective tax rate of 2.39% — based on actual property records in McHenry County — to generate your estimate.
Enter your property's estimated assessed value — the figure used to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Wonder Lake'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 Wonder Lake: rates range from 5146.00 in 60097 to 5146.00 in 60097, 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 Wonder Lake.
About Wonder Lake Property Taxes
About Property Taxes in Wonder Lake, McHenry, Illinois
Wonder Lake's median effective property tax rate of 2.39% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the McHenry 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 Wonder Lake. Homeowners in ZIP code 60097 carry a median effective rate of 2.39%, while those in the same ZIP code also pay 2.39%. This reflects how school district boundaries and local assessment districts are drawn across McHenry County. Understanding where you live in Wonder Lake can make a meaningful difference to your annual tax bill.
Wonder Lake 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 Wonder Lake, Mchenry 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 Wonder Lake'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 Wonder Lake Tax Rate
2.39%
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 Mchenry County Tax Rate
2.42%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Wonder Lake, Mchenry County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60097 | 1.89% | 2.15% | 2.39% | 2.51% | 2.94% |
Source: Ownwell
Property Tax Assessment Values Across Wonder Lake, Mchenry County, Illinois
When examining property taxes in Wonder Lake, 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 McHenry 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.
Assessment notices:
In McHenry 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. For example, the median home price in Wonder Lake is $224,818, with tax bills ranging significantly across the county. ZIP code 60097 has the highest median home price at $224,818.
Property Tax Assessment Values Across Wonder Lake, Mchenry County, Illinois
Source: Ownwell
$167,403
$458,643
$749,883
Median Wonder Lake Market Value
$224,818
Median Mchenry County Market Value
$297,576
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Wonder Lake, Mchenry County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60097 | $139,534 | $171,365 | $224,818 | $295,330 | $379,971 |
Source: Ownwell
Property Tax Bills Across Wonder Lake, Mchenry County, Illinois
Property tax bills in Wonder Lake are based on the assessed value of a home, not its market price alone. Local taxing authorities apply their tax rates to that assessed value, and the result is the annual bill homeowners receive. Factors such as school district funding, county services, and other local levies all play a role in shaping the final amount.
With a median home price of $224,818, property taxes can be a significant expense for homeowners. The median tax bill in the area is $5,146, which is well above the national median property tax bill of $2,400 and reflects a higher-than-average local burden. Bills can vary widely, with the 25th percentile at $3,756 and the 75th percentile at $7,311, while the 90th percentile reaches $9,630.
For homeowners, this means property taxes can have a major impact on monthly housing costs and long-term affordability.
Median Wonder Lake Tax Bill
$5,146
Median Mchenry County Tax Bill
$7,056
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Wonder Lake, Mchenry County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60097 | $2,610 | $3,756 | $5,146 | $7,311 | $9,630 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 1 |
Links | |
|---|---|
| McHenry Tax Assessor | |
| Website | mchenryil.devnetwedge.com |