Rock Island County property tax
Homeowners in Rock Island County, Illinois typically pay about 2.28% of their home's value in property tax each year — a median bill of $3,425 on a median home value of $150,400.
Typical effective rate
2.28%
higher than 1% of U.S. counties
Median tax paid
$3,425
per year
Median home value
$150,400
In IL
#7
of 102 ranked counties
At a glance
- Effective rate 2.28% — 143% higher than the U.S. median of 0.94%, and 13% higher than the Illinois median of 2.01%.
- With vs. without a mortgage — median tax $3,540 for mortgaged homes, $3,227 for homes owned outright.
- State ranking — 7th highest effective rate of 102 ranked Illinois counties; nationally it sits around the 99th percentile.
Estimate a bill for Rock Island County
Apply this county's typical effective rate (2.28%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Rock Island County, IL?
The typical effective property-tax rate in Rock Island County is 2.28% of a home's value per year, based on median taxes paid ($3,425) divided by the median home value ($150,400) in the Census ACS 2020–2024 5-year estimates. This is a typical burden for comparison, not a statutory mill rate.
How much is property tax on a typical home in Rock Island County?
The median owner-occupied home in Rock Island County is valued at $150,400, and the median real estate tax paid is $3,425 per year. Homes with a mortgage have a median tax of $3,540, versus $3,227 for homes without one.
How does Rock Island County compare to the rest of Illinois?
Rock Island County's effective rate is 13% higher than the Illinois median, ranking 7th of 102 ranked counties in the state.
Compare nearby Illinois counties
Counties ranked closest to Rock Island County by in-state effective rate. Open the comparison tool or see all Illinois counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 4 | Winnebago County | 2.39% | $3,930 |
| 5 | Kendall County | 2.37% | $7,651 |
| 6 | McHenry County | 2.36% | $7,274 |
| 8 | Kane County | 2.26% | $7,382 |
| 9 | Will County | 2.24% | $7,173 |
| 10 | Peoria County | 2.24% | $3,552 |
Official data & resources for Rock Island County
- Rock Island County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Rock Island County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Rock Island County — median home value.
- Federal forms & is property tax deductible? — IRS Pub 530, Schedule A and the SALT cap, plus your state tax agency.
Finding your exact bill
Your county or municipal assessor (sometimes called the appraisal district, property appraiser, or tax collector) sets the assessed value and the exact millage that produces your bill. Search for "[county name] [state] assessor" or "property tax" on an official .gov site.
Figures on this page are Census survey medians for the whole county (2020–2024 5-year), not an assessment of any individual property. Rates, exemptions and assessment practices vary by municipality and school district within a county.