Bonnie, Jefferson County, Illinois Property Taxes
Property Taxes in Bonnie, Illinois
Median Bonnie, Illinois effective property tax rate: 1.55%, significantly lower than the national median of 1.02%, and lower than the Illinois state median of 2.33%.
Median Bonnie, Illinois home value: $63,690
Median annual Bonnie, Illinois tax bill: $793, lower than the national median property tax bill of $2,400.
How are property taxes in Jefferson calculated?
Property taxes in Bonnie, 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 Bonnie's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Bonnie, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Bonnie, Jefferson County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.55%
Estimate Property Tax Bill
$987
$916
How Does the Bonnie Property Tax Calculator Work?
Use this Bonnie property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Bonnie's median effective tax rate of 1.55% — based on actual property records in Jefferson 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 Bonnie'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 Bonnie: rates range from 1.55% in 62816 to 1.55% in 62816, 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 Bonnie.
About Bonnie Property Taxes
About Property Taxes in Bonnie, Jefferson, Illinois
Bonnie's median effective property tax rate of 1.55% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Jefferson 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 Bonnie. Homeowners in the 62816 ZIP code carry a median effective rate of 1.55%, while those in the same ZIP code pay 1.55%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Jefferson County. Understanding which part of Bonnie you live in can make a meaningful difference to your annual tax bill.
Bonnie 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 Bonnie, Jefferson 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 Bonnie'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 Bonnie Tax Rate
1.55%
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 Jefferson County Tax Rate
1.82%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Bonnie, Jefferson County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62816 | 0.50% | 1.02% | 1.55% | 1.66% | 1.99% |
Source: Ownwell
Property Tax Assessment Values Across Bonnie, Jefferson County, Illinois
When examining property taxes in Bonnie, 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 Jefferson 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 Jefferson County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the 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 Bonnie.
For example, the median home price in Bonnie is $63,690, with tax bills ranging significantly across the county. 62816 has the highest median home price at $63,690.
Property Tax Assessment Values Across Bonnie, Jefferson County, Illinois
Source: Ownwell
$63,690
$103,242
$142,794
Median Bonnie Market Value
$63,690
Median Jefferson County Market Value
$80,739
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Bonnie, Jefferson County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62816 | $10,610 | $25,338 | $63,690 | $115,188 | $157,333 |
Source: Ownwell
Property Tax Bills Across Bonnie, Jefferson County, Illinois
Bonnie property tax bills are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. Local taxing authorities use that assessed value to determine how much each homeowner owes, so the bill can change when property values or tax rates change.
For homeowners in Bonnie, the size of the tax bill depends on the home’s value, the tax rate set by local governments, and any exemptions that may apply. With a median home price of $63,690, property taxes can have a meaningful impact on monthly housing costs, especially when compared with the national median property tax bill of $2,400.
In Jefferson County, the median tax bill is $793, which is below the national median. Still, bills vary widely across homes, with the 25th percentile at $274 and the 75th percentile at $1,581. That range shows how assessed value and local tax rates can create very different outcomes for homeowners.
Median Bonnie Tax Bill
$793
Median Jefferson County Tax Bill
$1,350
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Bonnie, Jefferson County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62816 | $92 | $274 | $793 | $1,581 | $2,484 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| Jefferson Tax Assessor | |
| Website | jeffersonil.devnetwedge.com |