Union County property tax
Homeowners in Union County, Illinois typically pay about 1.30% of their home's value in property tax each year — a median bill of $1,712 on a median home value of $131,700.
Typical effective rate
1.30%
higher than 19% of U.S. counties
Median tax paid
$1,712
per year
Median home value
$131,700
In IL
#97
of 102 ranked counties
At a glance
- Effective rate 1.30% — 39% higher than the U.S. median of 0.94%, and 35% lower than the Illinois median of 2.01%.
- With vs. without a mortgage — median tax $2,273 for mortgaged homes, $1,246 for homes owned outright.
- State ranking — 97th highest effective rate of 102 ranked Illinois counties; nationally it sits around the 81th percentile.
Estimate a bill for Union County
Apply this county's typical effective rate (1.30%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Union County, IL?
The typical effective property-tax rate in Union County is 1.30% of a home's value per year, based on median taxes paid ($1,712) divided by the median home value ($131,700) 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 Union County?
The median owner-occupied home in Union County is valued at $131,700, and the median real estate tax paid is $1,712 per year. Homes with a mortgage have a median tax of $2,273, versus $1,246 for homes without one.
How does Union County compare to the rest of Illinois?
Union County's effective rate is 35% lower than the Illinois median, ranking 97th of 102 ranked counties in the state.
Compare nearby Illinois counties
Counties ranked closest to Union County by in-state effective rate. Open the comparison tool or see all Illinois counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 94 | Calhoun County | 1.39% | $2,644 |
| 95 | White County | 1.34% | $1,444 |
| 96 | Hamilton County | 1.33% | $1,512 |
| 98 | Johnson County | 1.24% | $1,992 |
| 99 | Lawrence County | 1.18% | $1,174 |
| 100 | Pope County | 1.03% | $1,477 |
Official data & resources for Union County
- Union County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Union County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Union 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.