Kendall County, Illinois Property Taxes
Property Taxes in Kendall County, Illinois
Median Kendall County effective property tax rate: 2.55%, significantly higher than the national median of 1.02%.
Median Kendall County home value: $326,865
Median annual Kendall County tax bill: $8,237, higher than the national median property tax bill of $2,400.
How are property taxes in Kendall County calculated?
Property taxes in Kendall County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Kendall County or another part of Kendall County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Kendall County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.55%
Estimate Property Tax Bill
$8,335
$7,735
How Does the Kendall County Property Tax Calculator Work?
Use this Kendall County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Kendall County's median effective tax rate of 2.55% to generate your estimate.
Enter your property's estimated assessed value — the figure used for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Kendall County’s median property tax bill is $8,237, which is higher than the national median property tax bill of $2,400 and higher than the Illinois median property tax bill by $5,837.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Kendall County.
Property Tax Rates Across Kendall County, Illinois
What Are Effective Property Tax Rates Across Kendall County?
Local government entities set tax rates, which vary widely across Kendall County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Kendall County's effective property tax rate to other counties in Illinois or the U.S. median of 1.02%.
Kendall County's median effective rate stands at 2.55%, which is higher than the national median of 1.02%. Within Kendall County, the highest rate is found in Aurora at 2.82%, while Morris has the lowest at 2.14%.
These variations reflect differences in local school district levies, Special service areas (SSAs) assessments, and special district bonds — which compound the base county rate.
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 Kendall County Tax Rate
2.55%
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 Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Kendall County, Illinois
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Aurora | 2.70% | 2.74% | 2.82% | 2.84% | 2.96% |
| Bristol | 2.13% | 2.29% | 2.37% | 2.43% | 2.52% |
| Joliet | 2.24% | 2.29% | 2.60% | 2.69% | 2.70% |
| Millbrook | 2.04% | 2.16% | 2.20% | 2.26% | 2.35% |
| Millington | 1.44% | 2.05% | 2.16% | 2.36% | 2.36% |
| Minooka | 2.15% | 2.31% | 2.51% | 2.62% | 2.63% |
| Montgomery | 2.31% | 2.44% | 2.55% | 2.64% | 2.72% |
| Morris | 2.05% | 2.09% | 2.14% | 2.24% | 2.24% |
| Newark | 2.05% | 2.17% | 2.27% | 2.35% | 2.40% |
| Oswego | 2.36% | 2.47% | 2.54% | 2.57% | 2.68% |
| Plainfield | 2.22% | 2.28% | 2.30% | 2.68% | 2.71% |
| Plano | 2.18% | 2.44% | 2.59% | 3.13% | 3.28% |
| Sandwich | 1.92% | 2.02% | 2.23% | 2.40% | 2.41% |
| Sugar Grove | 2.38% | 2.41% | 2.45% | 2.51% | 2.52% |
| Yorkville | 2.36% | 2.47% | 2.57% | 2.71% | 3.21% |
| Big Rock | N/A | N/A | N/A | N/A | N/A |
| Lisbon | N/A | N/A | N/A | N/A | N/A |
| Shorewood | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Kendall County, Illinois
When examining property taxes in Kendall County, 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 Kendall 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 Kendall County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of September.
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 Kendall County.
For example, the median tax bill in Kendall County is $8,237, with tax bills ranging significantly across the county. Sugar Grove has the highest median home price at $554,016.
Property Tax Assessment Values Across Kendall County, Illinois
Source: Ownwell
$171,021
$362,519
$554,016
Median Kendall County Market Value
$326,865
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Kendall County, Illinois
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Aurora | $221,664 | $252,051 | $364,137 | $406,326 | $437,078 |
| Bristol | $198,340 | $258,857 | $305,907 | $425,949 | $600,728 |
| Joliet | $257,256 | $290,001 | $342,855 | $373,512 | $392,479 |
| Millbrook | $196,157 | $255,758 | $348,166 | $436,331 | $500,960 |
| Millington | $92,374 | $130,545 | $171,021 | $212,372 | $245,667 |
| Minooka | $232,068 | $248,966 | $331,614 | $386,628 | $492,613 |
| Montgomery | $214,634 | $229,977 | $269,526 | $339,489 | $374,495 |
| Morris | $225,518 | $277,359 | $347,649 | $372,531 | $570,918 |
| Newark | $158,556 | $217,530 | $293,985 | $429,208 | $560,258 |
| Oswego | $226,431 | $267,825 | $350,982 | $418,554 | $476,513 |
| Plainfield | $243,979 | $327,054 | $368,358 | $481,612 | $567,320 |
| Plano | $162,934 | $202,014 | $243,764 | $315,303 | $366,539 |
| Sandwich | $247,183 | $273,280 | $370,572 | $425,995 | $484,768 |
| Sugar Grove | $320,142 | $462,225 | $554,016 | $613,794 | $648,903 |
| Yorkville | $191,769 | $263,529 | $336,369 | $410,073 | $482,809 |
| Big Rock | N/A | N/A | N/A | N/A | N/A |
| Lisbon | N/A | N/A | N/A | N/A | N/A |
| Shorewood | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Kendall County, Illinois
How are property tax bills calculated in Kendall County, Illinois?
Property tax bills in Kendall County are based on the assessed value of a home, not its market price alone. Local taxing bodies set the tax rate, and the final bill reflects both the assessment and the combined rates from schools, municipalities, and other public services. For homeowners, that means a higher assessed value or a higher local tax rate can raise the bill even if the home has not changed.
What factors influence the amount a homeowner pays?
The county’s median home price is $326,865, and property tax bills are often substantial. The 25th percentile tax bill is $6,104, while the 75th percentile is $10,178 and the 90th percentile reaches $12,149. Sugar Grove has the highest median tax bill at $13,514, while Millington has the lowest at $3,677. Compared with the national median property tax rate of 1.02% and national median bill of $2,400, Kendall County homeowners often face much higher costs.
Median Kendall County Tax Bill
$8,237
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Kendall County, Illinois
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Aurora | $5,949 | $7,038 | $10,142 | $11,489 | $12,406 |
| Bristol | $3,966 | $5,690 | $7,078 | $10,269 | $14,552 |
| Joliet | $5,770 | $7,134 | $8,433 | $9,497 | $10,363 |
| Millbrook | $4,167 | $5,353 | $7,168 | $9,484 | $11,240 |
| Millington | $1,594 | $2,499 | $3,677 | $4,616 | $5,230 |
| Minooka | $5,348 | $6,081 | $8,276 | $9,195 | $11,666 |
| Montgomery | $4,943 | $5,639 | $6,620 | $8,919 | $9,962 |
| Morris | $4,740 | $5,865 | $7,609 | $8,161 | $12,621 |
| Newark | $3,323 | $4,723 | $6,678 | $9,643 | $12,794 |
| Oswego | $5,224 | $6,564 | $8,801 | $10,668 | $12,203 |
| Plainfield | $5,472 | $7,504 | $8,456 | $12,726 | $15,266 |
| Plano | $3,845 | $5,268 | $6,623 | $8,587 | $10,152 |
| Sandwich | $4,863 | $5,383 | $8,227 | $10,169 | $10,965 |
| Sugar Grove | $7,628 | $11,266 | $13,514 | $15,234 | $15,529 |
| Yorkville | $4,712 | $6,602 | $8,749 | $11,196 | $12,821 |
| Big Rock | N/A | N/A | N/A | N/A | N/A |
| Lisbon | N/A | N/A | N/A | N/A | N/A |
| Shorewood | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| Kendall Tax Assessor | |
| Website | kendallil.devnetwedge.com |