Property Tax in Williamson County, Illinois
In Williamson County, Illinois, the median property tax is $2,690/year — an effective tax rate of 1.72%. The median home value is $156,400.
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How Williamson County Compares
| Metric | Williamson County | Illinois Avg | U.S. Avg |
|---|---|---|---|
| Effective Tax Rate | 1.72% | 1.80% | 0.92% |
| Median Tax / Year | $2,690 | $2,850 | $1,630 |
| Median Home Value | $156,400 | $153,019 | $227,706 |
Market Analysis
Williamson County's effective property tax rate of 1.72% is 4.3% below the Illinois state average and 87.8% above the U.S. national average. At this rate, a homeowner with a $400,000 property would pay approximately $6,880 per year in property taxes.
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What is the property tax rate in Williamson County?
The effective property tax rate in Williamson County is 1.72%, based on the median property tax paid ($2,690) divided by the median home value ($156,400).
How does Williamson County compare to the rest of Illinois?
Williamson County's rate is 4.3% below the Illinois state average of 1.80%. See the full Illinois breakdown.
Can I appeal my property tax assessment in Williamson County?
Yes. Most U.S. counties allow property owners to appeal their assessed value. See our Appeal Guide for the process and deadlines.
What exemptions are available in Illinois?
Illinois offers various exemptions, including homestead, senior citizen, veteran, and disability exemptions. See our Exemptions Guide.
Data Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates. Variables: B25103 (Median Real Estate Taxes Paid), B25077 (Median Home Value). Public domain. Effective rate = median tax ÷ median home value × 100. This page is for informational purposes only and does not constitute tax or legal advice.