McHenry County Property Taxes
McHenry County, Illinois
Effective Tax Rate
0.00%
157.1% above state avgMedian Annual Tax
$0
$596/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
2.49%
At a Glance
Median Home Value
$286,900
State avg ▲ $146,132
Tax w/ Mortgage/yr
$7,337
$611/mo escrow
Tax w/o Mortgage/yr
$6,725
$560/mo
State Tax Rate Rank
#99
of 102 counties (1 = lowest)
Data Story
About Property Taxes in McHenry County, Illinois
McHenry County has highest tax burden
McHenry County's effective tax rate of 2.493% ranks in the 87th percentile nationally, far exceeding the national median of 1.728%. The median property tax of $7,153 is 2.7 times the national median of $2,690, reflecting both elevated rates and higher home values of $286,900—the only county in this cohort with values near the national median.
McHenry leads Illinois in tax burden
At 2.493%, McHenry County carries the highest effective tax rate in Illinois, exceeding the state average of 1.831% by 0.66 percentage points. The median property tax of $7,153 is 2.6 times the state median of $2,782—by far the heaviest tax load in the state.
Dramatically outpaces all regional peers
McHenry County's 2.493% rate towers above every comparison county—nearly 0.4 percentage points higher than Mason County (2.146%) and more than twice as high as Massac County (1.499%). This reflects the Chicago suburban market's concentrated service and infrastructure demands.
Homeowners pay $7,153 annually
On McHenry County's median home value of $286,900 and effective rate of 2.493%, residents pay approximately $7,153 in annual property taxes. With mortgage-related fees, total obligations climb to $7,337.
Reassessment critical at this tax level
With property taxes exceeding $7,000 annually, even modest assessment corrections can yield substantial savings for McHenry County homeowners. File a reassessment appeal with the McHenry County Assessor—the process is free and could significantly reduce your annual bill.
How McHenry County Compares
Median Annual Property Tax
McHenry County
2.49%
Effective rate
Illinois Avg
1.90%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in McHenry County, Illinois?
How much are property taxes in McHenry County?
How does McHenry County compare to the Illinois average?
What is the median home value in McHenry County, Illinois?
Why is McHenry County property tax rate higher than the Illinois average?
How does McHenry 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.