Property Tax in Madison County, Illinois
The median real estate tax bill in Madison County, Illinois is $3,232 per year, and the median home is worth $167,900. Both figures are the US Census Bureau's survey medians for owner-occupied households (US Census Bureau, American Community Survey (ACS) 5-year estimates, 2023).
What the Madison County numbers mean
A median is the middle household: half of owner-occupied households in Madison County pay more than $3,232, and half pay less. Your own bill is set by your home's assessed value, the exemptions you qualify for, and the local taxing districts your property sits in — so individual bills vary widely around the median.
Dividing the median tax by the median home value gives a derived effective rate of 1.93% for Madison County. It is an estimate built from two survey medians, not the county's official rate, but it is a fair way to compare the local tax burden with other counties where home values are very different.
The key figures for Madison County
| Measure | Madison County |
|---|---|
| Median real estate taxes paid per year | $3,232 |
| Median home value | $167,900 |
| Derived effective rate* | 1.93% |
| Equivalent monthly tax | $269 |
| Tax per $100,000 of value (derived) | $1,925 |
| Illustrative tax on a $400,000 home (derived rate) | $7,700 |
For context, the Illinois medians are $5,189 of tax on $250,500 of value, and the US medians are $2,969 on $303,400. *Derived figures are estimates from Census medians, not official rates.
Madison County at a glance
- Median tax rank in Illinois: #26 of 102 counties
- Median home value rank in Illinois: #26 of 102
- Population rank in Illinois: #8 of 102 (264,631 residents)
- Population density rank: #10 of 102 (370 people per square mile)
- Land area rank in Illinois: #22 of 102 (715 sq mi, 1.3% of the combined county land area)
- Median tax as a monthly figure: $269; per $1,000 of home value: $1.93
How Madison County compares
Set against its state, Madison County's median bill of $3,232 is about 38% lower than the Illinois median ($5,189). Against the country as a whole it is about 9% higher than the US median ($2,969). That places the county #26 of 102 Illinois counties ranked by median taxes paid.
Remember what drives the ranking: bills follow home values as much as rates. Madison County's median home, at $167,900, ranks #26 by value in Illinois, while its derived rate of 1.93% compares with a derived US figure of 0.98%.
Some extra context for Madison County: the median bill works out to about $269 a month, and the derived rate equals roughly $1,925 of tax per $100,000 of home value. The county is home to 264,631 people — the #8 most populous county in Illinois, spread over 715 square miles, a density of about 370 people per square mile. Its median home value, $167,900, ranks #26 among the state's 102 counties with data.
Zooming out: of 3133 counties nationwide with published Census figures, only 388 record a higher median tax bill than Madison County — it sits in the top 12% nationally. The county holds roughly 2.1% of Illinois's people. Its homes are worth less than the state norm (median $167,900 versus $250,500), and a decade at the derived rate of 1.93% adds up to about 19.25% of the median home's value in tax. The cheapest county in the state, Pulaski County, medians $668 — $2,564 less than Madison County per year.
Counties nearest Madison County in the Illinois ranking
| County | Median tax paid | Median home value | Derived rate* |
|---|---|---|---|
| Clinton County, IL | $3,356 | $180,500 | 1.86% |
| LaSalle County, IL | $3,336 | $154,900 | 2.15% |
| Stephenson County, IL | $3,140 | $127,500 | 2.46% |
| Piatt County, IL | $3,040 | $173,200 | 1.75% |
How the tax is worked out
As an illustration of the arithmetic: at Madison County's derived rate of 1.93%, a home valued at $400,000 would carry a tax bill of roughly $7,700 a year. That is only an illustration using the derived rate — a real bill is computed from the property's assessed value, its exemptions, and the combined rates of its specific taxing districts, so it can be higher or lower.
The usual sequence is: the local assessor values the property; exemptions are applied; the taxable value is multiplied by the combined local rates; and the county bills and collects the tax, distributing it to the schools, municipalities and districts that levied it.
Checking your assessment in Madison County
Most successful appeals are won on facts, not arguments. Start with the property record card held by the Madison County assessor: wrong square footage, an extra room, or a missing homestead exemption are common and fixable. Next, line your assessed value up against recent sales of genuinely similar homes nearby. Many disputes end at an informal conversation with the assessor's office; if yours does not, file the formal appeal with the review board named on your notice before its deadline, evidence attached, and keep paying the bill in the meantime so penalties do not build up.
More Illinois counties
Frequently asked questions
What is the median property tax in Madison County, Illinois?
The median real estate tax paid in Madison County, Illinois is $3,232 per year, on a median home value of $167,900 (US Census Bureau, American Community Survey (ACS) 5-year estimates, 2023).
What is the effective property tax rate in Madison County, Illinois?
Dividing Madison County's median tax bill ($3,232) by its median home value ($167,900) gives a derived effective rate of 1.93%. This is an estimate computed from two Census survey medians — it is not the county's official tax rate.
How does Madison County compare with the rest of Illinois?
Madison County ranks #26 of 102 Illinois counties with published data by median taxes paid. Its median bill of $3,232 is about 38% lower than the Illinois median of $5,189.
How are property taxes calculated in Madison County, Illinois?
Three steps produce the bill: an assessment of market value by the local assessor, a reduction for exemptions you qualify for (a homestead exemption is the common one), and multiplication by the combined rates of the county, municipality, school district and any special districts covering the property. The median result in Madison County is $3,232 of tax on a $167,900 median home value.
Can I appeal my property tax assessment in Madison County, Illinois?
Yes. Request your property record card from the Madison County assessor's office and check it for errors, then compare your assessed value with recent sales of similar homes. If it still looks too high, file a formal appeal with the local review board named on your assessment notice before the deadline printed on the notice — windows are short, often 30 to 90 days.