What is the property tax rate in Johnson County, Illinois?

Johnson County has an effective property tax rate of 1.24%. On a home valued at $160,500, homeowners pay approximately $1,992 per year in property taxes.

How much is the average property tax in Johnson County?

The median annual property tax payment in Johnson County is $1,992. Homeowners with a mortgage pay a median of $3,120, while those without a mortgage pay $1,608.

How does Johnson County compare to other counties in Illinois?

Johnson County ranks #98 out of 102 counties in Illinois for property tax rates. The county's effective rate of 1.24% is 38% lower than the Illinois average of 2.01%.

Johnson County Property Tax Rate

Illinois

1.24%effective rate

Johnson County, Illinois has an effective property tax rate of 1.24%, which is 35% higher than the national average of 0.92%. On a home valued at $160,500, homeowners pay approximately $1,992 per year in property taxes. Johnson County ranks #98 out of 102 counties in Illinois for property tax rates.

Median Tax Paid🏠

$1,992

Per year

Median Home Value📊

$160,500

2024 estimate

Tax as % of Income💰

3.19%

Median income: $62,528

State Rank📍

#98

of 102 counties in IL

Tax Breakdown

With Mortgage

$3,120

median annual tax

Without Mortgage

$1,608

median annual tax

Homeowners with a mortgage in Johnson County pay on average $1,512 more per year than those without. This difference often reflects how property tax escrow accounts in mortgaged homes capture the full tax obligation.

How Johnson County Compares

Johnson County

1.24%

Illinois Average

2.01%

National Average

0.92%

Top Counties in Illinois

Lake

2.58%

DeKalb

2.45%

Stephenson

2.40%

Winnebago

2.39%

Kendall

2.37%

McHenry

2.36%

Rock Island

2.28%

Kane

2.26%

Illinois Property Tax Exemptions

Available to Johnson County homeowners

✓

General Homestead

$10,000 reduction in EAV ($8,000 in Cook County)

Primary residence owners as of January 1

✓

Senior Homestead

$8,000 reduction in EAV

Homeowners age 65+ who own and occupy as primary residence

✓

Senior Assessment Freeze

Assessed value frozen at base year level (no increases)

Homeowners age 65+ with household income of $65,000 or less

✓

Disabled Veteran

$2,500 for 30-49% disability; $5,000 for 50-69%; full exemption for 70%+ disability

Veterans with service-connected disability of 30% or more

✓

Disability

$2,000 reduction in EAV

Homeowners who are disabled as defined by federal Social Security guidelines

Property Tax Calculator

Estimate your annual property tax in Johnson County

Home Value

$50k$2M

Apply homestead exemption ($100,000 school tax reduction)

Estimated Annual Property Tax

$3,720

$310/month · Rate: 1.24%

Quick Facts

Population13,376

Owner-Occupied60.7%

National Rank#680 of 3,135

Median Income$62,528

Think your property tax is too high?

Homeowners save an average of $1,148/year by appealing their assessment.

Learn How to Appeal →

Frequently Asked Questions

Data Source: U.S. Census Bureau, 2024 American Community Survey 5-Year Estimates. Effective tax rates are calculated by dividing median real estate taxes paid by median home value. Actual property tax rates may vary based on local taxing jurisdictions, exemptions, and assessment practices. This information is for general reference only and should not be used as a substitute for professional tax advice.