Sangamon County, Illinois Property Taxes
Property Taxes in Sangamon County, Illinois
Median Sangamon County effective property tax rate: 2.28%, significantly higher than the national median of 1.02%.
Median Sangamon County home value: $152,802
Median annual Sangamon County tax bill: $3,372, $972 higher than the national median property tax bill of $2,400.
How are property taxes in Sangamon County calculated?
Property taxes in Sangamon 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 Sangamon County or another part of Sangamon County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Sangamon County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.28%
Estimate Property Tax Bill
$3,484
$3,233
How Does the Sangamon County Property Tax Calculator Work?
Use this Sangamon County property tax calculator to estimate your annual property tax bill. Enter your property’s assessed value and our calculator applies Sangamon County’s median effective tax rate of 2.28% 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. Sangamon County’s median tax rate is higher than the Illinois median tax rate of 2.33%, and the county’s median tax bill of $3,372 is $972 higher than the state median tax bill of $2,400.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Sangamon County.
Property Tax Rates Across Sangamon County, Illinois
What Are Effective Property Tax Rates Across Sangamon County?
Local government entities set tax rates, which vary widely across Sangamon 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 Sangamon County's effective property tax rate to other counties in Illinois or the U.S. median of 1.02%.
Sangamon County's median effective rate stands at 2.28%, which is higher than the national median of 1.02%. Within Sangamon County, the highest rate is found in Springfield at 2.41%, while Auburn has the lowest at 1.75%.
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 Sangamon County Tax Rate
2.28%
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 Sangamon County, Illinois
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Athens | 1.51% | 1.63% | 1.95% | 2.13% | 2.13% |
| Auburn | 1.39% | 1.62% | 1.75% | 1.93% | 1.93% |
| Buffalo | 1.60% | 1.78% | 1.93% | 2.20% | 2.20% |
| Cantrall | 1.68% | 1.89% | 2.00% | 2.13% | 2.15% |
| Chatham | 1.94% | 2.11% | 2.22% | 2.30% | 2.41% |
| Dawson | 1.46% | 1.74% | 1.86% | 1.97% | 2.15% |
| Divernon | 1.51% | 1.77% | 1.90% | 2.16% | 2.16% |
| Glenarm | 1.67% | 1.91% | 2.01% | 2.06% | 2.17% |
| Illiopolis | 1.39% | 1.90% | 2.11% | 2.38% | 2.45% |
| Loami | 1.56% | 1.84% | 1.98% | 2.14% | 2.33% |
| Mechanicsburg | 1.46% | 1.74% | 1.90% | 2.08% | 2.12% |
| New Berlin | 1.67% | 1.89% | 2.03% | 2.13% | 2.28% |
| Pawnee | 1.66% | 1.92% | 2.09% | 2.27% | 2.37% |
| Pleasant Plains | 1.75% | 2.00% | 2.14% | 2.27% | 2.40% |
| Riverton | 1.67% | 1.86% | 1.96% | 2.17% | 2.24% |
| Rochester | 1.89% | 2.02% | 2.13% | 2.23% | 2.36% |
| Sherman | 1.85% | 1.96% | 2.07% | 2.18% | 2.24% |
| Spaulding | 1.67% | 1.81% | 1.95% | 2.05% | 2.13% |
| Springfield | 1.81% | 2.16% | 2.41% | 2.76% | 2.80% |
| Thayer | 1.29% | 1.71% | 2.11% | 2.61% | 2.61% |
| Virden | 1.92% | 2.23% | 2.40% | 2.55% | 2.67% |
| Waverly | 1.71% | 1.92% | 2.21% | 2.68% | 2.68% |
| Williamsville | 1.81% | 2.05% | 2.20% | 2.30% | 2.42% |
| Ashland | N/A | N/A | N/A | N/A | N/A |
| Lanesville | N/A | N/A | N/A | N/A | N/A |
| Mount Pulaski | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Sangamon County, Illinois
When examining property taxes in Sangamon 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 Sangamon 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 Sangamon County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.
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 Sangamon County.
For example, the median tax bill in Sangamon County is $3,372, compared with the national median property tax bill of $2,400. Tax bills range significantly across the county, with Sherman at $5,287 and Thayer at $1,187.
Property Tax Assessment Values Across Sangamon County, Illinois
Source: Ownwell
$62,115
$177,204
$292,293
Median Sangamon County Market Value
$152,802
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Sangamon County, Illinois
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Athens | $58,329 | $106,546 | $187,785 | $224,826 | $270,057 |
| Auburn | $65,306 | $97,014 | $145,200 | $208,107 | $299,371 |
| Buffalo | $29,677 | $82,214 | $124,592 | $185,648 | $247,512 |
| Cantrall | $75,829 | $133,929 | $234,174 | $314,004 | $392,802 |
| Chatham | $126,089 | $159,954 | $236,925 | $315,900 | $403,355 |
| Dawson | $60,147 | $97,790 | $170,271 | $245,580 | $300,745 |
| Divernon | $53,116 | $88,636 | $128,613 | $198,698 | $256,381 |
| Glenarm | $88,629 | $171,450 | $217,086 | $269,265 | $333,031 |
| Illiopolis | $48,120 | $77,421 | $121,138 | $155,845 | $199,121 |
| Loami | $63,221 | $97,330 | $143,994 | $214,176 | $275,218 |
| Mechanicsburg | $23,677 | $83,924 | $137,820 | $235,050 | $355,165 |
| New Berlin | $49,469 | $106,347 | $172,185 | $245,379 | $351,673 |
| Pawnee | $66,240 | $102,322 | $144,372 | $190,959 | $261,115 |
| Pleasant Plains | $63,661 | $113,526 | $186,498 | $260,712 | $356,348 |
| Riverton | $81,646 | $115,122 | $153,374 | $209,508 | $258,540 |
| Rochester | $133,547 | $176,383 | $229,080 | $320,687 | $421,970 |
| Sherman | $161,949 | $205,092 | $259,521 | $344,910 | $429,247 |
| Spaulding | $103,436 | $145,464 | $200,010 | $260,268 | $318,025 |
| Springfield | $46,669 | $80,079 | $135,075 | $217,923 | $333,798 |
| Thayer | $32,257 | $43,260 | $62,115 | $83,637 | $115,399 |
| Virden | $138,699 | $162,714 | $186,402 | $231,254 | $290,707 |
| Waverly | $8,496 | $21,820 | $77,952 | $163,750 | $265,818 |
| Williamsville | $111,388 | $144,838 | $206,691 | $305,456 | $381,347 |
| Ashland | N/A | N/A | N/A | N/A | N/A |
| Lanesville | N/A | N/A | N/A | N/A | N/A |
| Mount Pulaski | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Sangamon County, Illinois
Property tax bills in Sangamon County are based on the assessed value of a home, not its market price alone. Local taxing authorities apply tax rates to that assessed value, and the final bill reflects the combined impact of county, city, school, and other local levies. Homeowners with higher assessed values or properties in areas with stronger tax rates generally pay more, while lower-assessed homes pay less.
With a median home price of $152,802, tax bills can vary widely across the county. The 25th percentile tax bill is $1,945, while the 75th percentile is $5,358 and the 90th percentile reaches $8,055. That range shows how much location and assessment differences can affect what homeowners owe each year.
For many homeowners, property taxes are one of the largest ongoing housing costs. When assessments rise, bills can increase even if the home is not sold, making it important to understand how local tax calculations work.
Median Sangamon County Tax Bill
$3,372
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Sangamon County, Illinois
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Athens | $1,205 | $1,648 | $3,328 | $4,608 | $5,402 |
| Auburn | $975 | $1,540 | $2,398 | $3,634 | $5,476 |
| Buffalo | $523 | $1,333 | $2,268 | $3,510 | $4,876 |
| Cantrall | $1,294 | $2,296 | $4,521 | $6,174 | $7,982 |
| Chatham | $2,536 | $3,389 | $5,135 | $7,061 | $9,212 |
| Dawson | $935 | $1,642 | $2,917 | $4,492 | $5,676 |
| Divernon | $933 | $1,550 | $2,367 | $3,646 | $4,915 |
| Glenarm | $1,420 | $3,168 | $4,276 | $5,306 | $6,719 |
| Illiopolis | $769 | $1,415 | $2,404 | $3,262 | $4,351 |
| Loami | $1,076 | $1,773 | $2,780 | $4,307 | $5,638 |
| Mechanicsburg | $454 | $1,235 | $2,409 | $4,428 | $6,833 |
| New Berlin | $787 | $1,936 | $3,375 | $4,928 | $7,207 |
| Pawnee | $1,154 | $1,968 | $2,901 | $3,921 | $5,581 |
| Pleasant Plains | $1,164 | $2,187 | $3,861 | $5,671 | $7,747 |
| Riverton | $1,442 | $2,118 | $2,933 | $4,130 | $5,196 |
| Rochester | $2,551 | $3,592 | $4,732 | $6,801 | $9,240 |
| Sherman | $2,862 | $4,016 | $5,287 | $7,230 | $9,232 |
| Spaulding | $1,814 | $2,704 | $3,739 | $5,173 | $6,279 |
| Springfield | $977 | $1,805 | $3,139 | $5,162 | $8,116 |
| Thayer | $490 | $823 | $1,187 | $1,783 | $2,522 |
| Virden | $2,455 | $3,614 | $4,529 | $5,631 | $7,457 |
| Waverly | $225 | $514 | $1,874 | $3,087 | $5,890 |
| Williamsville | $2,092 | $2,897 | $4,400 | $6,740 | $8,539 |
| Ashland | N/A | N/A | N/A | N/A | N/A |
| Lanesville | N/A | N/A | N/A | N/A | N/A |
| Mount Pulaski | 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 | |
|---|---|
| Sangamon Tax Assessor | |
| Website | tax.co.sangamon.il.us |