Mason City, Mason County, Illinois Property Taxes
Property Taxes in Mason City, Illinois
Median Mason City, Illinois effective property tax rate: 3.02%, significantly higher than the national median of 1.02%, and higher than the Illinois state median of 2.33%.
Median Mason City, Illinois home value: $114,099
Median annual Mason City, Illinois tax bill: $3,639, $1,239 higher than the national median property tax bill of $2,400.
How are property taxes in Mason County calculated?
Property taxes in Mason 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 Mason City's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Mason City, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Mason City, Mason County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
3.02%
Estimate Property Tax Bill
$3,446
$3,198
How Does the Mason City Property Tax Calculator Work?
Use this Mason City property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Mason City's median effective tax rate of 3.02% — based on actual property records in Mason 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 Mason 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 Mason City: rates range from 3.02% in 62664 to 3.02% in 62664, 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 Mason City.
About Mason City Property Taxes
About Property Taxes in Mason City, Mason, Illinois
Mason City’s median effective property tax rate of 3.02% is higher than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Mason 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 Mason City. Homeowners in the 62664 ZIP code carry a median effective rate of 3.02%, and the same ZIP also has a median home price of $114,099 and a median tax bill of $3,639. Because school district boundaries and local assessment districts are drawn across Mason County, understanding where you live can make a meaningful difference to your annual tax bill.
Mason City 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 Mason City, Mason 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 Mason 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 Mason City Tax Rate
3.02%
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 Mason County Tax Rate
3.12%
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Mason City, Mason County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62664 | 2.45% | 2.80% | 3.02% | 3.23% | 3.53% |
Source: Ownwell
Property Tax Assessment Values Across Mason City, Mason County, Illinois
When examining property taxes in Mason 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 Mason 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 Mason 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 Mason City.
For example, the median home price in Mason City is $114,099, with tax bills ranging significantly across the county. 62664 has the highest median home price at $114,099.
Property Tax Assessment Values Across Mason City, Mason County, Illinois
Source: Ownwell
$46,558
$80,329
$114,099
Median Mason City Market Value
$114,099
Median Mason County Market Value
$72,273
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Mason City, Mason County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62664 | $19,623 | $54,062 | $114,099 | $186,437 | $245,876 |
Source: Ownwell
Property Tax Bills Across Mason City, Mason County, Illinois
Property tax bills in Mason City are based on the assessed value of a home and the local tax rate set by taxing authorities. For homeowners, the bill is determined by multiplying the assessed value by the tax rate, then applying any exemptions or adjustments that may reduce the amount owed.
In Mason City, the median home price is $114,099, and the median property tax bill is $3,639. That is above the national median property tax bill of $2,400 and reflects how local assessments and rates can create a higher annual cost for homeowners. Tax bills can vary widely, with the 25th percentile at $1,778 and the 75th percentile at $5,475, while the 90th percentile reaches $7,704.
Because property taxes are tied to both home value and local levies, even small changes in assessment or rates can affect what homeowners pay each year.
Median Mason City Tax Bill
$3,639
Median Mason County Tax Bill
$2,327
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Mason City, Mason County, Illinois
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 62664 | $680 | $1,778 | $3,639 | $5,475 | $7,704 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
Links | |
|---|---|
| Mason Tax Assessor | |
| Website | masonil.devnetwedge.com |