Property Tax in DuPage County, Illinois
Homeowners in DuPage County, Illinois pay a median of $7,833 a year in real estate taxes, on a median home value of $374,100. Those are the Census Bureau's published medians for the county (US Census Bureau, American Community Survey (ACS) 5-year estimates, 2023) — the typical bill and the typical home value for owner-occupied households.
What the DuPage County numbers mean
Read the two medians together: $7,833 is the middle tax bill among owner-occupied households in DuPage County, and $374,100 is the middle home value. Neither figure describes a specific property — together they describe the typical homeowner's situation in the county.
The derived effective rate for DuPage County is 2.09% (median tax ÷ median value). Treat it as an estimate for comparison only: it comes from survey medians of different households, not from the county's rate schedule.
The key figures for DuPage County
| Measure | DuPage County |
|---|---|
| Median real estate taxes paid per year | $7,833 |
| Median home value | $374,100 |
| Derived effective rate* | 2.09% |
| Equivalent monthly tax | $653 |
| Tax per $100,000 of value (derived) | $2,094 |
| Illustrative tax on a $400,000 home (derived rate) | $8,376 |
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.
DuPage County at a glance
- Median tax rank in Illinois: #2 of 102 counties
- Median home value rank in Illinois: #1 of 102
- Population rank in Illinois: #2 of 102 (927,263 residents)
- Population density rank: #2 of 102 (2,828 people per square mile)
- Land area rank in Illinois: #87 of 102 (327 sq mi, 0.6% of the combined county land area)
- Median tax as a monthly figure: $653; per $1,000 of home value: $2.09
How DuPage County compares
Of the 102 Illinois counties with published data, 1 have a higher median property tax bill than DuPage County's $7,833, putting the county at #2 in the state. Its bill is about 51% higher than the state median of $5,189 and about 164% higher than the national median of $2,969.
Rates and values pull in opposite directions: an expensive housing market can produce big bills at ordinary rates. Here the derived rate is 2.09%, versus 0.98% derived nationally, and the median home value ranks #1 within Illinois.
Some extra context for DuPage County: the median bill works out to about $653 a month, and the derived rate equals roughly $2,094 of tax per $100,000 of home value. The county is home to 927,263 people — the #2 most populous county in Illinois, spread over 327 square miles, a density of about 2,828 people per square mile. Its median home value, $374,100, ranks #1 among the state's 102 counties with data.
Zooming out: of 3133 counties nationwide with published Census figures, only 32 record a higher median tax bill than DuPage County — it sits in the top 1% nationally. The county holds roughly 7.3% of Illinois's people. Its homes are worth more than the state norm (median $374,100 versus $250,500), and a decade at the derived rate of 2.09% adds up to about 20.94% of the median home's value in tax. The cheapest county in the state, Pulaski County, medians $668 — $7,165 less than DuPage County per year.
Counties nearest DuPage County in the Illinois ranking
| County | Median tax paid | Median home value | Derived rate* |
|---|---|---|---|
| Lake County, IL | $8,743 | $326,600 | 2.68% |
| Kendall County, IL | $7,556 | $298,900 | 2.53% |
| Kane County, IL | $7,230 | $303,000 | 2.39% |
How the tax is worked out
Think of the final bill as three ingredients: the assessed value of the property, the exemptions subtracted from it, and the combined rate of every district the property sits in. DuPage County's medians imply a derived rate of 2.09%; applied illustratively, a $400,000 home would owe about $8,376 a year, or around $698 a month spread evenly. Individual properties depart from the illustration in both directions.
Checking your assessment in DuPage County
Believe your assessment is too high? The practical order of attack is: obtain your record card and audit it line by line; collect comparable recent sales in DuPage County; ask the assessor's office to correct anything plainly wrong; and, if the value still seems off, lodge a formal appeal ahead of the deadline printed on your assessment notice. Windows are short — often 30 to 90 days — and late appeals are usually rejected outright, however strong the case.
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Frequently asked questions
What is the median property tax in DuPage County, Illinois?
The median real estate tax paid in DuPage County, Illinois is $7,833 per year, on a median home value of $374,100 (US Census Bureau, American Community Survey (ACS) 5-year estimates, 2023).
What is the effective property tax rate in DuPage County, Illinois?
Dividing DuPage County's median tax bill ($7,833) by its median home value ($374,100) gives a derived effective rate of 2.09%. This is an estimate computed from two Census survey medians — it is not the county's official tax rate.
How does DuPage County compare with the rest of Illinois?
By median taxes paid, DuPage County stands at #2 among the 102 Illinois counties the Census publishes figures for. Its $7,833 median bill is about 51% higher than the state median ($5,189), and 1 counties in the state record a higher median.
How are property taxes calculated in DuPage County, Illinois?
The assessor estimates your property's market value; exemptions (such as a homestead exemption) reduce the taxable amount; and the result is multiplied by the combined rates of the local taxing districts — county, municipality, school district and any special districts. In DuPage County, the median outcome of that process is a bill of $7,833 on a median home value of $374,100.
Can I appeal my property tax assessment in DuPage County, Illinois?
You can. Pull your property record card from the DuPage County assessor, verify its details, and compare the assessed value against similar homes that sold recently. If the value still seems too high, submit a formal appeal to the board named on your notice before the stated deadline — usually a 30-to-90-day window.