Rio, Knox County, Illinois Property Taxes
Property Taxes in Rio, Illinois
Median Rio, Illinois effective property tax rate: 2.75%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Rio, Illinois home value: $184,470
Median annual Rio, Illinois tax bill: $5,168, $2,768 higher than the national median property tax bill of $2,400.
How are property taxes in Knox calculated?
Property taxes in Rio, 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 Rio's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Rio, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Rio, Knox County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.75%
Estimate Property Tax Bill
$5,073
$4,708
How Does the Rio Property Tax Calculator Work?
Use this Rio property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Rio's median effective tax rate of 2.75% — based on actual property records in Knox 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 Rio'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 Rio: rates range from 2.75% in 61472 to 2.75% in 61472, primarily due to differences in school district levies and local assessment districts. Rio's median effective tax rate is higher than the 2.33% state median and above the 1.02% national median, with a median tax bill of $5,168 compared with the $2,400 national median.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Rio.
About Rio Property Taxes
About Property Taxes in Rio, Knox, Illinois
Rio’s median effective property tax rate of 2.75% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Knox County base levy combined with local school district levies and other local charges that shape the final tax bill.
Property tax rates are not uniform across Rio. Homeowners in the 61472 ZIP code carry a median effective rate of 2.75%, while the same ZIP also reflects the city’s highest and lowest median tax rates. This means the local tax burden is consistent across the area, but it still sits well above the national median property tax rate.
Rio homeowners who believe their assessed value is too high can file a formal appeal with the Knox County 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 Rio, Knox 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 Rio'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 Rio Tax Rate
2.75%
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 Knox County Tax Rate
2.82%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Rio, Knox County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61472 | 2.02% | 2.39% | 2.75% | 2.94% | 3.04% |
Source: Ownwell
Property Tax Assessment Values Across Rio, Knox County, Illinois
When examining property taxes in Rio, 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 Knox 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 Knox 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 Rio.
For example, the median home price in Rio is $184,470, with tax bills ranging significantly across the county. 61472 has the highest median home price at $184,470.
Property Tax Assessment Values Across Rio, Knox County, Illinois
Source: Ownwell
$40,530
$174,788
$309,045
Median Rio Market Value
$184,470
Median Knox County Market Value
$93,540
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Rio, Knox County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61472 | $60,432 | $97,350 | $184,470 | $315,150 | $416,430 |
Source: Ownwell
Property Tax Bills Across Rio, Knox County, Illinois
Property tax bills in Rio are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. For homeowners, that means the bill is shaped by both the value of the home and the tax rate set by local taxing authorities.
With a median home price of $184,470, property taxes can vary widely from one homeowner to another. In this area, the 25th percentile tax bill is $2,122, while the 75th percentile tax bill is $8,922 and the 90th percentile tax bill is $12,055. The median tax bill in ZIP code 61472 is $5,168.
These bills can have a major impact on household budgets, especially when assessed values rise faster than income. Understanding how property taxes are calculated helps homeowners see why their bill may be higher or lower than expected and why reviewing assessed value matters.
Median Rio Tax Bill
$5,168
Median Knox County Tax Bill
$2,355
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Rio, Knox County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61472 | $1,331 | $2,122 | $5,168 | $8,922 | $12,055 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 1 |
Links | |
|---|---|
| Knox Tax Assessor | |
| Website | knoxil.devnetwedge.com |