Jefferson County Property Taxes
Jefferson County, Illinois
Effective Tax Rate
0.00%
27.2% below state avgMedian Annual Tax
$0
$169/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
1.71%
At a Glance
Median Home Value
$118,400
State avg ▼ $146,132
Tax w/ Mortgage/yr
$2,397
$200/mo escrow
Tax w/o Mortgage/yr
$1,561
$130/mo
State Tax Rate Rank
#42
of 102 counties (1 = lowest)
Data Story
About Property Taxes in Jefferson County, Illinois
Jefferson's tax rate lags the nation
At 1.711%, Jefferson County's effective property tax rate sits below the national median of 1.825%, placing it in the lower half of U.S. counties. Homeowners here pay a median of $2,026 annually compared to the national median of $2,690—about 25% less than the typical American household.
Below Illinois average, middle ranking
Jefferson County ranks 34th among Illinois's 102 counties by effective tax rate at 1.711%, beating the state average of 1.831%. Its median tax bill of $2,026 trails the state median of $2,782, making it slightly more affordable than most Illinois communities.
Most affordable in its region
Jefferson County offers the lowest effective rate among southern Illinois neighbors—outpacing Jersey County (1.752%) and Jo Daviess County (1.745%) by a narrow margin. Only Johnson County's exceptional 1.317% rate beats Jefferson, making this one of Illinois's most tax-friendly areas.
A $118,400 home costs $2,026 yearly
The median home in Jefferson County valued at $118,400 generates an estimated annual property tax of $2,026. With mortgage insurance included, homeowners can expect to pay roughly $2,397 annually when factoring in insurance and escrow.
Many Jefferson homeowners could appeal
Research shows roughly 20% of homeowners statewide are assessed above market value. If you believe your assessment is unfair, filing an appeal during Illinois's open assessment window costs nothing and could reduce your annual tax burden.
How Jefferson County Compares
Median Annual Property Tax
Jefferson County
1.71%
Effective rate
Illinois Avg
1.90%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Jefferson County, Illinois?
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How does Jefferson County compare to the Illinois average?
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How does Jefferson County rank for property taxes in Illinois?
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.