Property Taxes in Deerfield, Illinois
Median Deerfield, Illinois effective property tax rate: 2.82%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Deerfield, Illinois home value: $495,521
Median annual Deerfield, Illinois tax bill: $13,531, $11,131 higher than the national median property tax bill of $2,400.
How are property taxes in Lake calculated?
Property taxes in Deerfield, 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 Deerfield's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Deerfield, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the Deerfield Property Tax Calculator Work?
Use this Deerfield property tax calculator to estimate your annual property tax bill. Enter your property’s assessed value and the calculator applies Deerfield’s median effective tax rate of 2.82% — based on actual property records in Lake County — to generate your estimate.
Enter your property’s estimated assessed value — the figure the local assessor uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home’s market value. The calculator applies Deerfield’s median effective rate across all local levies, providing a more accurate estimate than using a single county millage rate.
Deerfield’s rate is higher than the Illinois median property tax rate of 2.33% and far above the national median property tax rate of 1.02%. The median property tax bill is $13,531, which is $11,131 higher than the Illinois median bill and well above 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 Deerfield.
About Deerfield Property Taxes
About Property Taxes in Deerfield, Lake, Illinois
Deerfield’s median effective property tax rate of 2.82% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Lake 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 Deerfield. Homeowners in the 60015 ZIP code carry a median effective rate of 2.82%, while those in the same ZIP also pay 2.82%. This means the city’s rate is consistent across the available ZIP data, but it still sits well above the national median and above the state median. Deerfield homeowners with a median home price of $495,521 face a median property tax bill of $13,531, which is $11,131 higher than the Illinois state tax bill comparison provided.
Deerfield homeowners who believe their assessed value is too high can file a formal appeal with the Lake County Tax Assessor before June 1, 2026.
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 Deerfield, Lake 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 Deerfield'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 Ă· 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 Deerfield Tax Rate
2.82%
Our median effective property tax rate (tax bill Ă· 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 Lake County Tax Rate
2.61%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across Deerfield, Lake County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60015 | 2.48% | 2.66% | 2.82% | 2.90% | 3.01% |
Source: Ownwell
Property Tax Assessment Values Across Deerfield, Lake County, Illinois
When examining property taxes in Deerfield, 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 Lake 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:
In Lake County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month.
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 understanding how assessed and market values are determined, property owners can better navigate their tax responsibilities and the valuation process affecting their property taxes in Deerfield.
For example, the median home price in Deerfield is $495,521, with tax bills ranging significantly across the county. 60015 has the highest median home price at $495,521.
Property Tax Assessment Values Across Deerfield, Lake County, Illinois
Source: Ownwell
$153,792
$627,201
$1,100,609
Median Deerfield Market Value
$495,521
Median Lake County Market Value
$317,980
Median Illinois Market Value
$227,888
Median United States Market Value
$274,101
Property Tax Assessment Values Across Deerfield, Lake County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60015 | $232,446 | $349,217 | $495,521 | $663,668 | $913,041 |
Source: Ownwell
Property Tax Bills Across Deerfield, Lake County, Illinois
Property tax bills in Deerfield are calculated from the market value of a home and the local tax rate set by taxing authorities. The assessed value is used to determine how much of the home’s value is taxable, and that amount is then multiplied by the applicable rate to produce the bill. In Deerfield, where the median home price is $495,521, taxes can be substantial because local rates and assessments are a major part of the calculation.
Homeowners in Lake County should also expect their bill to reflect school districts, municipal services, and other local levies. The 25th percentile tax bill is $9,638, while the 75th percentile is $18,470, showing how much bills can vary across properties. At the high end, the 90th percentile reaches $25,811. The median tax bill is $13,531 in ZIP code 60015, which is far above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%.
Median Deerfield Tax Bill
$13,531
Median Lake County Tax Bill
$8,402
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$3,209
Property Tax Bills Across Deerfield, Lake County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60015 | $6,308 | $9,638 | $13,531 | $18,470 | $25,811 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| Lake Tax Assessor | |
| Website | tax.lakecountyil.gov |