Union County Property Taxes
Union County, Illinois
Effective Tax Rate
0.00%
33.5% below state avgMedian Annual Tax
$0
$154/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
1.41%
At a Glance
Median Home Value
$131,700
State avg ▼ $146,132
Tax w/ Mortgage/yr
$2,433
$203/mo escrow
Tax w/o Mortgage/yr
$1,402
$117/mo
State Tax Rate Rank
#10
of 102 counties (1 = lowest)
Similar tax rates
Data Story
About Property Taxes in Union County, Illinois
Union County keeps taxes low nationally
Union County's effective tax rate of 1.405% falls well below the national median of 1.831%, placing it among the more affordable counties for property taxes across the U.S. The median property tax of $1,851 is 31% lower than the national median of $2,690.
Illinois's most tax-friendly county
Union County ranks first among Illinois's 102 counties for the lowest effective tax rate at 1.405%, substantially below the state average of 1.831%. This represents a meaningful advantage for homeowners compared to the rest of the state.
Lowest taxes in the region by far
Union County's 1.405% rate is dramatically lower than Wabash County (1.471%), Wayne County (1.526%), and all other surrounding counties. A Union County homeowner saves $300–$1,000+ annually compared to neighbors in adjacent counties.
Median home costs just $1,851 yearly
A median-valued home in Union County ($131,700) carries an estimated annual property tax of only $1,851. This makes Union County an exceptionally affordable place to own property in Illinois.
Double-check your assessment anyway
Even in tax-friendly Union County, some homeowners are overassessed and can appeal their valuations at no cost. An appeal could further reduce your already-low tax obligations.
How Union County Compares
Median Annual Property Tax
Union County
1.41%
Effective rate
Illinois Avg
1.90%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Union County, Illinois?
How much are property taxes in Union County?
How does Union County compare to the Illinois average?
What is the median home value in Union County, Illinois?
Is Union County a low property tax area in Illinois?
How does Union County rank for property taxes in Illinois?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Illinois
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.