Deer Grove, Whiteside County, Illinois Property Taxes
Property Taxes in Deer Grove, Illinois
Median Deer Grove, Illinois effective property tax rate: 2.09%, significantly higher than the national median of 1.02%, and lower than the Illinois state median of 2.33%.
Median Deer Grove, Illinois home value: $112,222
Median annual Deer Grove, Illinois tax bill: $2,103, $297 lower than the national median property tax bill of $2,400.
How are property taxes in Whiteside calculated?
Property taxes in Deer 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 Deer Grove's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Deer Grove, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Deer Grove, Whiteside County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.09%
Estimate Property Tax Bill
$2,345
$2,177
How Does the Deer Grove Property Tax Calculator Work?
Use this Deer Grove property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Deer Grove's median effective tax rate of 2.09% — based on actual property records in Whiteside 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 Deer 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 Deer Grove: rates range from 2.09% in 61243 to 2.09% in 61243, 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 Deer Grove.
About Deer Grove Property Taxes
About Property Taxes in Deer Grove, Whiteside, Illinois
Deer Grove's median effective property tax rate of 2.09% is lower than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Whiteside 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 Deer Grove. Homeowners in the 61243 ZIP code carry a median effective rate of 2.09%, while those in the same ZIP code pay 2.09%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Whiteside County. Understanding which part of Deer Grove you live in can make a meaningful difference to your annual tax bill.
Deer Grove 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 Deer Grove, Whiteside 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 Deer 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 Deer Grove Tax Rate
2.09%
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 Whiteside County Tax Rate
2.36%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Deer Grove, Whiteside County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61243 | 1.42% | 1.83% | 2.09% | 2.29% | 2.29% |
Source: Ownwell
Property Tax Assessment Values Across Deer Grove, Whiteside County, Illinois
When examining property taxes in Deer 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. The Whiteside 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 the spring each year and typically reach your mailbox by the middle of the season. 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 Deer Grove is $112,222, and the median property tax bill is $2,103. In 61243, the highest median home price is $112,222.
Property Tax Assessment Values Across Deer Grove, Whiteside County, Illinois
Source: Ownwell
$90,776
$120,048
$149,319
Median Deer Grove Market Value
$112,222
Median Whiteside County Market Value
$107,532
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Deer Grove, Whiteside County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61243 | $56,076 | $80,865 | $112,222 | $166,986 | $304,757 |
Source: Ownwell
Property Tax Bills Across Deer Grove, Whiteside County, Illinois
Property tax bills in Deer Grove are based on the assessed value of a home and the local tax rate set by taxing authorities. When a property is reassessed, the bill can change if the market value or local levy changes. Homeowners with higher-valued homes generally pay more, while those with lower assessed values may pay less.
In Deer Grove, the median home price is $112,222, and the median property tax bill is $2,103. That is slightly below the national median property tax bill of $2,400, but it still represents a meaningful annual cost for many homeowners. Bills can vary widely: the 25th percentile is $1,441, while the 75th percentile is $3,391, and the 90th percentile reaches $6,597. These differences show how much property taxes can affect household budgets depending on a home’s assessed value and location within Whiteside County.
Median Deer Grove Tax Bill
$2,103
Median Whiteside County Tax Bill
$2,559
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Deer Grove, Whiteside County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61243 | $569 | $1,441 | $2,103 | $3,391 | $6,597 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 1 |
Links | |
|---|---|
| Whiteside Tax Assessor | |
| Website | whitesideil.devnetwedge.com |