Clay County Property Taxes
Clay County, Illinois
Effective Tax Rate
0.00%
45.3% below state avgMedian Annual Tax
$0
$127/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
1.62%
At a Glance
Median Home Value
$94,300
State avg ▼ $146,132
Tax w/ Mortgage/yr
$1,902
$159/mo escrow
Tax w/o Mortgage/yr
$809
$67/mo
State Tax Rate Rank
#30
of 102 counties (1 = lowest)
Similar tax rates
Data Story
About Property Taxes in Clay County, Illinois
Clay County offers the lowest regional tax rate
At 1.615%, Clay County's effective tax rate sits well below the national median of 1.56%—the lowest in this eight-county cluster. The median property tax of $1,523 is among the nation's most affordable, reflecting both low rates and modest home values averaging $94,300.
Illinois's most tax-friendly county in this group
Clay County ranks 95th among Illinois's 102 counties by effective tax rate, placing it in the bottom 7%—the absolute most favorable for homeowners. At 1.615%, it runs 0.216 percentage points below the state average of 1.831%.
Lowest taxes in southern Illinois region
Clay County's 1.615% rate is the lowest among all eight counties analyzed, beating even Clark County (1.684%) and Christian County (1.691%). It offers a significant advantage over Cass County (2.102%), Champaign County (2.070%), and Coles County (2.046%).
What an average Clay County home costs annually
The median Clay County home valued at $94,300 generates an estimated $1,523 in annual property taxes—the lowest in the region. Homeowners with mortgages pay $1,902, while those without mortgages pay just $809.
Low taxes, but appeals still possible
Clay County homeowners can still pursue property tax appeals if they believe their homes are overassessed. The county assessor's office accepts reassessment requests at no cost—a smart move given the modest property values in the area.
How Clay County Compares
Median Annual Property Tax
Clay County
1.62%
Effective rate
Illinois Avg
1.90%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Clay County, Illinois?
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How does Clay County compare to the Illinois average?
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Counties with Similar Tax Rates
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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.