Illinois City, Rock Island County, Illinois Property Taxes
Property Taxes in Illinois City, Illinois
Median Illinois City, Illinois effective property tax rate: 3.58%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Illinois City, Illinois home value: $141,792
Median annual Illinois City, Illinois tax bill: $5,289, higher than the national median property tax bill of $2,400.
How are property taxes in Rock Island calculated?
Property taxes in Illinois City, 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 Illinois City's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Illinois City, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Illinois City, Rock Island County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
3.58%
Estimate Property Tax Bill
$5,076
$4,711
How Does the Illinois City Property Tax Calculator Work?
Use this Illinois City property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Illinois City's median effective tax rate of 3.58% — based on actual property records in Rock Island County — to generate your estimate.
Enter your property's estimated assessed value — the figure used to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Illinois City'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 Illinois City: rates range from 3.58% in 61259 to 3.58% in 61259, 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 Illinois City.
About Illinois City Property Taxes
About Property Taxes in Illinois City, Rock Island, Illinois
Illinois City’s median effective property tax rate of 3.58% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Rock Island 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 Illinois City. Homeowners in ZIP code 61259 carry a median effective rate of 3.58%, while those in the same ZIP also pay 3.58%. This reflects how school district boundaries and local assessment districts are drawn across Rock Island County.
Illinois City homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the June 1, 2026 deadline each year.
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 Illinois City, Rock Island 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 Illinois City’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 Illinois City Tax Rate
3.58%
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 Rock Island County Tax Rate
2.93%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Illinois City, Rock Island County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61259 | 2.93% | 3.25% | 3.58% | 4.10% | 4.59% |
Source: Ownwell
Property Tax Assessment Values Across Illinois City, Rock Island County, Illinois
When examining property taxes in Illinois City, 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 Rock Island County assessor 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 Rock Island County, assessment notices are sent in September 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 Illinois City.
For example, the median home price in Illinois City is $141,792, with tax bills ranging significantly across the county. 61259 has the highest median home price at $141,792.
Property Tax Assessment Values Across Illinois City, Rock Island County, Illinois
Source: Ownwell
$110,655
$166,860
$223,064
Median Illinois City Market Value
$141,792
Median Rock Island County Market Value
$121,995
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Illinois City, Rock Island County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61259 | $72,959 | $105,282 | $141,792 | $180,507 | $239,360 |
Source: Ownwell
Property Tax Bills Across Illinois City, Rock Island County, Illinois
Property tax bills in Illinois City are based on the assessed value of a home, not its market price. Local taxing authorities apply tax rates to that assessed value to determine the final bill, and those rates can reflect services such as schools, roads, and public safety. For homeowners, this means a higher assessed value can lead to a higher property tax bill even if the home has not been sold.
In Illinois City, the median home price is $141,792, and the median property tax bill is $5,289. That is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. Bills can vary widely, with the 25th percentile at $3,809 and the 75th percentile at $6,961. At the 90th percentile, the bill reaches $9,200, showing how much taxes can differ from one homeowner to another.
Property Tax Bills Across Illinois City, Rock Island County, Illinois
Source: Ownwell
$3,067
$6,252
$9,436
Median Illinois City Tax Bill
$5,289
Median Rock Island County Tax Bill
$3,439
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Illinois City, Rock Island County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 61259 | $2,749 | $3,809 | $5,289 | $6,961 | $9,200 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 1 |
Links | |
|---|---|
| Rock Island Tax Assessor | |
| Website | rockislandil.devnetwedge.com |