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Rock Island County, Illinois: property tax rate, home values and income

Effective property tax rate

2.33%

9th highest of 102 counties in Illinois

Median home value

$144,700

39th highest in Illinois

Median household income

$66,768

46th highest in Illinois

Population

142,995

Census ACS 2023

Sources: US Census Bureau, American Community Survey 5-year estimates · Updated 11/03/2026

In Rock Island County, Illinois the effective property tax rate is 2.33%. The median homeowner pays $3,372 a year in real estate taxes on a home with a median value of $144,700. That rate is the 9th highest of the 102 Illinois counties with published data, and the 41st highest of 3,132 counties in the United States.

Property tax in Rock Island County

The effective rate is the median real estate tax paid divided by the median home value. The Illinois statewide average is 2.07%, so Rock Island County is above it. Applying this county's rate to other home prices gives a rough idea of the yearly bill; actual bills depend on the school district, exemptions and the assessed value.

Home valueEstimated tax per yearPer month
$144,700 (county median)$3,370$281
$200,000$4,660$388
$300,000$6,990$583
$400,000$9,320$777
$500,000$11,650$971

Home values and incomes

The median home value is $144,700 (39th highest in Illinois, 2091st highest nationally) and the median household income is $66,768. Homes cost about 2.2 times a typical household's yearly income. Median gross rent is $863 a month. 68.6% of occupied homes are owner-occupied. Homeowners with a mortgage pay a median of $1,109 a year for insurance. For comparison, the Illinois statewide median home value is $295,943.

Counties near Rock Island County in the Illinois property tax ranking

CountyEffective rateMedian home value
Stephenson County2.46%$127,500
Kane County2.39%$303,000
Will County2.35%$298,000
Rock Island County2.33%$144,700
Boone County2.27%$198,600
McLean County2.27%$198,300
Peoria County2.24%$152,600

Frequently asked questions

What is the property tax rate in Rock Island County, Illinois?

The effective property tax rate is 2.33% of home value per year, the 9th highest of 102 counties in Illinois (Census ACS 2023 5-year estimates).

How much is property tax on a $300,000 home in Rock Island County?

At the county's effective rate of 2.33%, about $6,990 a year (roughly $583 a month). Your actual bill depends on the assessed value, your school district and exemptions.

What is the median home value in Rock Island County?

The median home value is $144,700 (Census ACS 2023 5-year estimates, owner-occupied homes).

What is the median household income in Rock Island County?

The median household income is $66,768 (Census ACS 2023 5-year estimates).