Gilman, Iroquois County, Illinois Property Taxes
Property Taxes in Gilman, Illinois
Median Gilman, Illinois effective property tax rate: 2.60%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Gilman, Illinois home value: $130,428
Median annual Gilman, Illinois tax bill: $3,246, $846 higher than the national median property tax bill of $2,400.
How are property taxes in Iroquois calculated?
Property taxes in Gilman, 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 Gilman's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Gilman, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Gilman, Iroquois County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.6%
Estimate Property Tax Bill
$3,391
$3,147
How Does the Gilman Property Tax Calculator Work?
Use this Gilman property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Gilman's median effective tax rate of 2.60% — based on actual property records in Iroquois 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 Gilman'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 Gilman: rates range from 2.60% in 60938 to 2.60% in 60938, 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 Gilman.
About Gilman Property Taxes
About Property Taxes in Gilman, Iroquois, Illinois
Gilman’s median effective property tax rate of 2.60% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Iroquois County levy combined with local school district levies and other local charges that can affect what homeowners pay.
Property tax rates are not uniform across Gilman. In this case, the highest and lowest median effective tax rates are both 2.60% in ZIP code 60938, so there is no ZIP-level spread within the available data. That means the local tax burden is consistent across the city based on the figures provided.
Gilman homeowners who believe their assessed value is too high can file a formal appeal with the 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 Gilman, Iroquois 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 Gilman’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 Ă· 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 Gilman Tax Rate
2.60%
Our median effective property tax rate (tax bill Ă· 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 Iroquois County Tax Rate
2.86%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Gilman, Iroquois County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60938 | 1.75% | 2.18% | 2.60% | 3.00% | 3.28% |
Source: Ownwell
Property Tax Assessment Values Across Gilman, Iroquois County, Illinois
When examining property taxes in Gilman, 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 Iroquois 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 Iroquois County, assessment notices are sent in the spring each year. They'll 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 Gilman is $130,428, with tax bills ranging significantly across the county. The $3,246 median tax bill is above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. The 60938 ZIP code has the highest median home price at $130,428.
Property Tax Assessment Values Across Gilman, Iroquois County, Illinois
Source: Ownwell
$83,658
$117,924
$152,190
Median Gilman Market Value
$130,428
Median Iroquois County Market Value
$113,187
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Gilman, Iroquois County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60938 | $48,312 | $78,840 | $130,428 | $197,256 | $288,297 |
Source: Ownwell
Property Tax Bills Across Gilman, Iroquois County, Illinois
Property tax bills in Gilman are based on the assessed value of a home and the local tax rate set by taxing authorities in Iroquois County. When a property’s market value changes, its assessed value can change too, which affects the final bill. Local budgets for schools, roads, and other services also play a role in determining how much homeowners owe.
For Gilman homeowners, the median home price is $130,428, and the median property tax bill is $3,246. That is above the national median property tax bill of $2,400 and reflects how local assessment levels and tax rates can push bills higher or lower than the U.S. norm.
Homeowners with bills at the 25th percentile pay $1,946, while those at the 75th percentile pay $5,374. At the 90th percentile, the bill reaches $8,226, showing how much property taxes can vary depending on a home’s assessed value and location within the city.
Median Gilman Tax Bill
$3,246
Median Iroquois County Tax Bill
$3,480
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Gilman, Iroquois County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 60938 | $1,077 | $1,946 | $3,246 | $5,374 | $8,226 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| Iroquois Tax Assessor | |
| Website | iroquoisil.devnetwedge.com |