Altona, Knox County, Illinois Property Taxes
Property Taxes in Altona, Illinois
Median Altona, Illinois effective property tax rate: 2.81%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Altona, Illinois home value: $203,445
Median annual Altona, Illinois tax bill: $5,387, $2,987 higher than the national median property tax bill of $2,400.
How are property taxes in Knox calculated?
Property taxes in Altona, 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 Altona's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Altona, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Altona, Knox County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.81%
Estimate Property Tax Bill
$5,717
$5,305
How Does the Altona Property Tax Calculator Work?
Use this Altona property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Altona's median effective tax rate of 2.81% — based on actual property records in Knox County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment process uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Altona'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 Altona: rates range from 2.81% in 61414 to 2.81% in 61414, 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 Altona.
About Altona Property Taxes
About Property Taxes in Altona, Knox, Illinois
Altona’s median effective property tax rate of 2.81% 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 special service areas that can vary by subdivision throughout the city.
Property tax rates are not uniform across Altona. Homeowners in the 61414 ZIP code carry a median effective rate of 2.81%, while those in the same ZIP also pay 2.81%. That means there is no spread across the city, but the rate is still well above the national median. The median home price is $203,445, and the median property tax bill is $5,387, which is higher than the Illinois median tax bill by $2,987.
Altona homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the June 1, 2026 deadline.
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 Altona, 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 Altona'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 Altona Tax Rate
2.81%
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 Altona, Knox County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61414 | 2.41% | 2.59% | 2.81% | 2.95% | 2.98% |
Source: Ownwell
Property Tax Assessment Values Across Altona, Knox County, Illinois
When examining property taxes in Altona, 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 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 are sent in the spring each year and 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.
For example, the median home price in Altona is $203,445, with a median tax bill of $5,387.
Property Tax Assessment Values Across Altona, Knox County, Illinois
Source: Ownwell
$40,530
$174,788
$309,045
Median Altona Market Value
$203,445
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 Altona, Knox County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61414 | $62,064 | $128,722 | $203,445 | $325,432 | $480,783 |
Source: Ownwell
Property Tax Bills Across Altona, Knox County, Illinois
Property tax bills in Altona are based on the assessed value of a home, which is then multiplied by the local tax rate. That assessed value is influenced by the property’s market value, location, and any exemptions or local taxing decisions that apply. With a median home price of $203,445, homeowners can see very different bills depending on how their property is assessed and which taxing districts collect revenue.
The typical property tax bill in the area is $5,387, which is above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. Bills can range widely, with the 25th percentile at $3,387, the 75th percentile at $8,962, and the 90th percentile reaching $14,373. For homeowners, that means property taxes can be a major part of the cost of owning a home in Altona, especially when assessed values rise or local tax rates increase.
Median Altona Tax Bill
$5,387
Median Knox County Tax Bill
$2,355
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Altona, Knox County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61414 | $1,510 | $3,387 | $5,387 | $8,962 | $14,373 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 1 |
Links | |
|---|---|
| Knox Tax Assessor | |
| Website | knoxil.devnetwedge.com |