Property Tax in Will County, Illinois
The median real estate tax bill in Will County, Illinois is $6,993 per year, and the median home is worth $298,000. 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 Will County numbers mean
Read the two medians together: $6,993 is the middle tax bill among owner-occupied households in Will County, and $298,000 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 Will County is 2.35% (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.
Will County by the numbers
| Measure | Will County | Illinois | United States |
|---|---|---|---|
| Median real estate taxes paid | $6,993 | $5,189 | $2,969 |
| Median home value | $298,000 | $250,500 | $303,400 |
| Derived effective rate* | 2.35% | 2.07% | 0.98% |
| Median tax per month | $583 | $432 | $247 |
*Estimate derived from Census medians (tax ÷ value), not an official rate.
Will County at a glance
- Median tax rank in Illinois: #6 of 102 counties
- Median home value rank in Illinois: #6 of 102
- Population rank in Illinois: #4 of 102 (698,450 residents)
- Population density rank: #5 of 102 (836 people per square mile)
- Land area rank in Illinois: #13 of 102 (835 sq mi, 1.5% of the combined county land area)
- Median tax as a monthly figure: $583; per $1,000 of home value: $2.35
How Will County compares
The median tax bill in Will County is about 35% higher than the state median ($5,189 for Illinois) and about 136% higher than the US median ($2,969 nationally). By median taxes paid, the county ranks #6 out of 102 Illinois counties with published Census data — 5 counties in the state have a higher median bill.
Comparisons cut both ways: a county can have a modest rate but high bills because homes are expensive, or a high rate but modest bills because homes are cheaper. Will County's derived rate of 2.35% sits above the derived US figure of 0.98%.
Some extra context for Will County: the median bill works out to about $583 a month, and the derived rate equals roughly $2,347 of tax per $100,000 of home value. The county is home to 698,450 people — the #4 most populous county in Illinois, spread over 835 square miles, a density of about 836 people per square mile. Its median home value, $298,000, ranks #6 among the state's 102 counties with data.
Zooming out: of 3133 counties nationwide with published Census figures, only 45 record a higher median tax bill than Will County — it sits in the top 1% nationally. The county holds roughly 5.5% of Illinois's people. Its homes are worth more than the state norm (median $298,000 versus $250,500), and a decade at the derived rate of 2.35% adds up to about 23.47% of the median home's value in tax. The cheapest county in the state, Pulaski County, medians $668 — $6,325 less than Will County per year.
Counties nearest Will County in the Illinois ranking
| County | Median tax paid | Median home value | Derived rate* |
|---|---|---|---|
| Kane County, IL | $7,230 | $303,000 | 2.39% |
| McHenry County, IL | $7,153 | $286,900 | 2.49% |
| Cook County, IL | $6,053 | $305,200 | 1.98% |
| DeKalb County, IL | $5,889 | $231,900 | 2.54% |
How the tax is worked out
The bill is built in stages. First the assessor puts a market value on the property. Exemptions — a homestead exemption above all — then reduce the taxable amount. Finally the combined local rate is applied. To see the scale: at the county's derived rate of 2.35%, each $100,000 of value corresponds to about $2,347 of tax a year, and a $400,000 home to roughly $9,388. Real bills use the official assessment and district rates, not this derived figure, so treat the example as a sense of scale only.
Checking your assessment in Will 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 Will 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 Will County, Illinois?
The median real estate tax paid in Will County, Illinois is $6,993 per year, on a median home value of $298,000 (US Census Bureau, American Community Survey (ACS) 5-year estimates, 2023).
What is the effective property tax rate in Will County, Illinois?
Dividing Will County's median tax bill ($6,993) by its median home value ($298,000) gives a derived effective rate of 2.35%. This is an estimate computed from two Census survey medians — it is not the county's official tax rate.
How does Will County compare with the rest of Illinois?
Will County ranks #6 of 102 Illinois counties with published data by median taxes paid. Its median bill of $6,993 is about 35% higher than the Illinois median of $5,189.
How are property taxes calculated in Will 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 Will County is $6,993 of tax on a $298,000 median home value.
Can I appeal my property tax assessment in Will County, Illinois?
Yes. Request your property record card from the Will 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.