Crystal Lake, Mchenry County, Illinois Property Taxes
Property Taxes in Crystal Lake, Illinois
Median Crystal Lake, Illinois effective property tax rate: 2.55%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Crystal Lake, Illinois home value: $315,132
Median annual Crystal Lake, Illinois tax bill: $7,845, $5,445 higher than the national median property tax bill of $2,400.
How are property taxes in McHenry calculated?
Property taxes in Crystal 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 Crystal Lake's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Crystal Lake, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Crystal Lake, Mchenry County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.55%
Estimate Property Tax Bill
$8,036
$7,457
How Does the Crystal Lake Property Tax Calculator Work?
Use this Crystal Lake property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Crystal Lake's median effective tax rate of 2.55% — based on actual property records in McHenry County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment process uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Crystal 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 Crystal Lake: rates range from $7,382 in 60014 to $9,844 in 60012, primarily due to differences in school district levies and local assessment districts. Crystal Lake's median effective tax rate is higher than the Illinois median of 2.33%, and the median tax bill is higher than the national median property tax bill of $2,400.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Crystal Lake.
About Crystal Lake Property Taxes
About Property Taxes in Crystal Lake, McHenry, Illinois
Crystal Lake’s median effective property tax rate of 2.55% 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 Crystal Lake. Homeowners in ZIP code 60014 carry a median effective rate of 2.56%, while those in 60012 pay 2.47%. This spread — 0.09 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across McHenry County. Understanding which part of Crystal Lake you live in can make a meaningful difference to your annual tax bill.
Crystal 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 Crystal 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 Crystal 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 Crystal Lake Tax Rate
2.55%
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 Crystal Lake, Mchenry County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60012 | 2.22% | 2.34% | 2.47% | 2.66% | 2.72% |
| 60014 | 2.21% | 2.39% | 2.56% | 2.63% | 2.82% |
Source: Ownwell
Property Tax Assessment Values Across Crystal Lake, Mchenry County, Illinois
When examining property taxes in Crystal Lake, 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 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 McHenry 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 Crystal Lake.
For example, the median home price in Crystal Lake is $315,132, with tax bills ranging significantly across the county. 60012 has the highest median home price at $399,348.
Property Tax Assessment Values Across Crystal Lake, Mchenry County, Illinois
Source: Ownwell
$167,403
$458,643
$749,883
Median Crystal Lake Market Value
$315,132
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 Crystal Lake, Mchenry County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60012 | $266,128 | $324,285 | $399,348 | $478,059 | $568,285 |
| 60014 | $189,291 | $242,901 | $294,496 | $365,437 | $448,886 |
Source: Ownwell
Property Tax Bills Across Crystal Lake, Mchenry County, Illinois
Property tax bills in Crystal Lake are based on the assessed value of a home and the local tax rate set by taxing districts. When a home’s market value changes, the assessed value can change too, which affects the final bill. Local budgets for schools, roads, public safety, and other services also play a role in determining how much homeowners owe.
With a median home price of $315,132, property taxes in Crystal Lake are substantial. The 25th percentile tax bill is $6,122, while the 75th percentile reaches $10,061. At the 90th percentile, bills climb to $12,632, showing how quickly taxes can rise for higher-valued homes.
Homeowners in Crystal Lake often pay far more than the national median property tax bill of $2,400. That means taxes here can have a major impact on monthly housing costs and long-term affordability, especially when assessed values increase faster than expected.
Median Crystal Lake Tax Bill
$7,845
Median Mchenry County Tax Bill
$7,056
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Crystal Lake, Mchenry County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60012 | $6,005 | $7,844 | $9,844 | $12,115 | $14,713 |
| 60014 | $3,981 | $5,842 | $7,382 | $9,355 | $11,653 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| McHenry Tax Assessor | |
| Website | mchenryil.devnetwedge.com |