Flat Rock, Lawrence County, Illinois Property Taxes
Property Taxes in Flat Rock, Illinois
Median Flat Rock, Illinois effective property tax rate: 5.24%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Flat Rock, Illinois home value: $24,721
Median annual Flat Rock, Illinois tax bill: $1,442, $958 lower than the national median property tax bill of $2,400.
How are property taxes in Lawrence County calculated?
Property taxes in Flat Rock, 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 Flat Rock's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Flat Rock, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Flat Rock, Lawrence County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
5.24%
Estimate Property Tax Bill
$1,295
$1,202
How Does the Flat Rock Property Tax Calculator Work?
Use this Flat Rock property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Flat Rock's median effective tax rate of 5.24% — based on actual property records in Lawrence 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 Flat Rock'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 Flat Rock: rates are consistent at $1,442 in 62427, with no difference between the highest and lowest median tax bill. Flat Rock's median effective tax rate is higher than Illinois' 2.33% state median, while the median tax bill is $958 lower than the state median bill of $2,400.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Flat Rock.
About Flat Rock Property Taxes
About Property Taxes in Flat Rock, Lawrence, Illinois
Flat Rock’s median effective property tax rate of 5.24% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Lawrence County tax base, along with local levies that shape what homeowners pay each year.
Property tax rates are not uniform across Flat Rock. Homeowners in the 62427 ZIP code carry a median effective rate of 5.24%, while the same ZIP also reflects a median tax bill of $1,442 and a median home price of $24,721. In a place where the rate is the same across the city, the assessed value still drives the final bill.
Flat Rock homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the January 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 Flat Rock, Lawrence 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 Flat Rock'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 Flat Rock Tax Rate
5.24%
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 Lawrence County Tax Rate
3.83%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Flat Rock, Lawrence County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62427 | 1.63% | 2.69% | 5.24% | 8.36% | 13.71% |
Source: Ownwell
Property Tax Assessment Values Across Flat Rock, Lawrence County, Illinois
When examining property taxes in Flat Rock, 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 Lawrence 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 Lawrence 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 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 Flat Rock.
For example, the median home price in Flat Rock is $24,721, with tax bills ranging significantly across the county. 62427 has the highest median home price at $24,721.
Property Tax Assessment Values Across Flat Rock, Lawrence County, Illinois
Source: Ownwell
$24,338
$26,446
$28,554
Median Flat Rock Market Value
$24,721
Median Lawrence County Market Value
$27,140
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Flat Rock, Lawrence County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62427 | $3,494 | $12,818 | $24,721 | $39,836 | $109,815 |
Source: Ownwell
Property Tax Bills Across Flat Rock, Lawrence County, Illinois
Property tax bills in Flat Rock are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value set by the county. The median home price is $24,721, and that value helps explain why tax bills can vary widely from one homeowner to another. Factors such as property characteristics, location, and local taxing jurisdictions all influence the final bill.
The 25th percentile tax bill is $511, while the 75th percentile is $2,690 and the 90th percentile is $3,963. That spread shows how much a property’s assessed value and tax rate can affect what homeowners pay each year. In Flat Rock, the median tax bill is $1,442, which is below the national median property tax bill of $2,400 and far lower than the national median property tax rate of 1.02%. For homeowners, this means even small changes in assessed value or local rates can have a meaningful impact on annual housing costs.
Median Flat Rock Tax Bill
$1,442
Median Lawrence County Tax Bill
$1,032
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Flat Rock, Lawrence County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62427 | $267 | $511 | $1,442 | $2,690 | $3,963 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | January 1 |
Links | |
|---|---|
| Lawrence Tax Assessor | |
| Website | lawrence-il.bhamaps.com |