Buffalo Grove, Lake County, Illinois Property Taxes
Property Taxes in Buffalo Grove, Illinois
Median Buffalo Grove, Illinois effective property tax rate: 2.95%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Buffalo Grove, Illinois home value: $421,176
Median annual Buffalo Grove, Illinois tax bill: $12,364, $9,964 higher than the national median property tax bill of $2,400.
How are property taxes in Lake calculated?
Property taxes in Buffalo Grove, 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 Buffalo Grove's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Buffalo Grove, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Buffalo Grove, Lake County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.95%
Estimate Property Tax Bill
$12,425
$11,530
How Does the Buffalo Grove Property Tax Calculator Work?
Use this Buffalo Grove property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Buffalo Grove's median effective tax rate of 2.95% — based on actual property records in Lake County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment system uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Buffalo Grove'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 Buffalo Grove: rates range from 2.95% in 60089 to 2.95% in 60089, 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 Buffalo Grove.
About Buffalo Grove Property Taxes
About Property Taxes in Buffalo Grove, Lake, Illinois
Buffalo Grove’s median effective property tax rate of 2.95% 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 Buffalo Grove. Homeowners in the 60089 ZIP code carry a median effective rate of 2.95%, while those in the same ZIP code pay 2.95%. This spread reflects how school district boundaries and local assessment districts are drawn across Lake County.
Buffalo Grove homeowners who believe their assessed value is too high can file a formal appeal with the Lake County Tax Assessor before the June 1, 2026 deadline each year.
If your estimated bill 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 Buffalo Grove, 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 Buffalo Grove'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 Buffalo Grove Tax Rate
2.95%
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 Lake County Tax Rate
2.61%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Buffalo Grove, Lake County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60089 | 2.66% | 2.83% | 2.95% | 3.06% | 3.20% |
Source: Ownwell
Property Tax Assessment Values Across Buffalo Grove, Lake County, Illinois
When examining property taxes in Buffalo Grove, 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. Lake County 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 {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. 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 Buffalo Grove.
For example, the median home price in Buffalo Grove is $421,176, with tax bills ranging significantly across the county. 60089 has the highest median home price at $421,176.
Property Tax Assessment Values Across Buffalo Grove, Lake County, Illinois
Source: Ownwell
$153,792
$627,201
$1,100,609
Median Buffalo Grove Market Value
$421,176
Median Lake County Market Value
$317,980
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Buffalo Grove, Lake County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60089 | $240,722 | $311,256 | $421,176 | $536,492 | $647,215 |
Source: Ownwell
Property Tax Bills Across Buffalo Grove, Lake County, Illinois
Property tax bills in Buffalo Grove are based on the assessed value of a home and the local tax rate set by taxing authorities in Lake County. A home’s market value, exemptions, and any changes in assessment can all affect the final bill. Because property taxes are tied to assessed value, homeowners with similar homes may still see different bills if their assessments differ.
With a median home price of $421,176, the property tax burden in Buffalo Grove is well above the national median property tax bill of $2,400. The median property tax bill in ZIP code 60089 is $12,364, and bills can rise much higher, with the 75th percentile at $15,737 and the 90th percentile at $19,148. That means property taxes can have a major impact on monthly housing costs and long-term affordability for homeowners.
Median Buffalo Grove Tax Bill
$12,364
Median Lake County Tax Bill
$8,402
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Buffalo Grove, Lake County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60089 | $6,834 | $9,060 | $12,364 | $15,737 | $19,148 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 1 |
Links | |
|---|---|
| Lake Tax Assessor | |
| Website | tax.lakecountyil.gov |