Boone County Property Taxes
Boone County, Illinois
Effective Tax Rate
0.00%
62% above state avgMedian Annual Tax
$0
$376/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
2.27%
At a Glance
Median Home Value
$198,600
State avg ▲ $146,132
Tax w/ Mortgage/yr
$4,645
$387/mo escrow
Tax w/o Mortgage/yr
$4,008
$334/mo
State Tax Rate Rank
#92
of 102 counties (1 = lowest)
Similar tax rates
Data Story
About Property Taxes in Boone County, Illinois
Boone County has the region's highest tax rate
Boone County's effective tax rate of 2.27% substantially exceeds the national median of 2.14%, putting it in the upper tier of U.S. counties for property tax burden. The median tax bill of $4,507 is 68% higher than the national median of $2,690.
Highest taxes among the sample counties
Boone County's 2.27% effective rate is 24% above the Illinois state average of 1.83%, making it one of the highest-taxed counties in this eight-county comparison. At $4,507 median annual tax, Boone residents pay $1,725 more than the state median.
Boone significantly outpaces nearby counties
Boone's 2.27% rate is substantially higher than every comparison county, from Brown (1.47%) to Adams (1.58%) to Bond (1.96%). The county's tax burden stands out dramatically in the region.
Boone's hefty annual tax tab
The median Boone County home valued at $198,600 translates to approximately $4,507 in annual property taxes at the 2.27% effective rate. With a mortgage, that figure rises to $4,645; without, it drops slightly to $4,008.
High rates make assessment appeals especially valuable
Boone County residents paying premium tax rates should strongly consider appealing their assessments, as even a modest reduction yields substantial annual savings. An appeal challenging an overvalued assessment could return hundreds of dollars to your wallet annually.
How Boone County Compares
Median Annual Property Tax
Boone County
2.27%
Effective rate
Illinois Avg
1.90%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Boone County, Illinois?
How much are property taxes in Boone County?
How does Boone County compare to the Illinois average?
What is the median home value in Boone County, Illinois?
Why is Boone County property tax rate higher than the Illinois average?
How does Boone County rank for property taxes in Illinois?
Counties with Similar Tax Rates
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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.