Mason County Property Taxes
Mason County, Illinois
Effective Tax Rate
0.00%
18.2% below state avgMedian Annual Tax
$0
$190/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
2.15%
At a Glance
Median Home Value
$106,100
State avg ▼ $146,132
Tax w/ Mortgage/yr
$2,397
$200/mo escrow
Tax w/o Mortgage/yr
$2,178
$182/mo
State Tax Rate Rank
#85
of 102 counties (1 = lowest)
Data Story
About Property Taxes in Mason County, Illinois
Mason County levies top-tier tax rates
Mason County's effective tax rate of 2.146% ranks in the 71st percentile nationally, well above the national median of 1.728%. The median property tax of $2,277 approaches the national median of $2,690, despite homes valued at only $106,100—less than 38% of the national median home value.
Mason County highest-taxed in Illinois
At 2.146%, Mason County carries Illinois's highest effective tax rate, exceeding the state average of 1.831% by over 0.3 percentage points. The median property tax of $2,277 is 18% below the state median, reflecting lower home values but elevated tax pressure on residents.
Significantly outpaces all regional peers
Mason County's 2.146% rate far exceeds every neighboring county in the state—nearly 0.2 percentage points above McDonough County (2.162%) and Marshall County (1.991%). This makes Mason one of the most tax-intensive places to own property in central Illinois.
Expect $2,277 in annual property tax
On Mason County's median home value of $106,100 and effective rate of 2.146%, homeowners pay approximately $2,277 in annual property taxes. With mortgage add-ons, total obligations can reach $2,397.
Reassessment appeal strongly encouraged
Given Mason County's exceptionally high tax rates, thorough assessment verification is critical for homeowners seeking relief. The Mason County Assessor's office accepts reassessment requests at no charge—a simple filing could substantially reduce your annual tax burden.
How Mason County Compares
Median Annual Property Tax
Mason County
2.15%
Effective rate
Illinois Avg
1.90%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Mason County, Illinois?
How much are property taxes in Mason County?
How does Mason County compare to the Illinois average?
What is the median home value in Mason County, Illinois?
Why is Mason County property tax rate higher than the Illinois average?
How does Mason County rank for property taxes in Illinois?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Illinois
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.