Warren County property tax
Homeowners in Warren County, Illinois typically pay about 1.81% of their home's value in property tax each year — a median bill of $1,903 on a median home value of $105,000.
Typical effective rate
1.81%
higher than 4% of U.S. counties
Median tax paid
$1,903
per year
Median home value
$105,000
In IL
#48
of 102 ranked counties
At a glance
- Effective rate 1.81% — 93% higher than the U.S. median of 0.94%, and 10% lower than the Illinois median of 2.01%.
- With vs. without a mortgage — median tax $1,825 for mortgaged homes, $2,056 for homes owned outright.
- State ranking — 48th highest effective rate of 102 ranked Illinois counties; nationally it sits around the 96th percentile.
Estimate a bill for Warren County
Apply this county's typical effective rate (1.81%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Warren County, IL?
The typical effective property-tax rate in Warren County is 1.81% of a home's value per year, based on median taxes paid ($1,903) divided by the median home value ($105,000) 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 Warren County?
The median owner-occupied home in Warren County is valued at $105,000, and the median real estate tax paid is $1,903 per year. Homes with a mortgage have a median tax of $1,825, versus $2,056 for homes without one.
How does Warren County compare to the rest of Illinois?
Warren County's effective rate is 10% lower than the Illinois median, ranking 48th of 102 ranked counties in the state.
Compare nearby Illinois counties
Counties ranked closest to Warren County by in-state effective rate. Open the comparison tool or see all Illinois counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 45 | Clinton County | 1.83% | $3,524 |
| 46 | Iroquois County | 1.82% | $2,504 |
| 47 | Alexander County | 1.81% | $1,084 |
| 49 | Hancock County | 1.81% | $2,059 |
| 50 | Piatt County | 1.81% | $3,265 |
| 51 | Vermilion County | 1.81% | $1,757 |
Official data & resources for Warren County
- Warren County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Warren County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Warren 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.