Illinois Property Tax Calculator (2026)
The Illinois median effective property tax rate is 2.01% for 2026 — median real-estate taxes paid divided by median home value (U.S. Census Bureau ACS 2024). On a $400,000 home that is about $8,040 a year (~$670 a month). Illinois ranks #2 of 51 nationally. Enter your home value below for an instant estimate, then confirm the exact rate with your county.
What is the Illinois property tax rate in 2026?
Illinois's median effective property tax rate is 2.01%. On the state median home value of $263,300, the typical bill is about $5,298 a year.
How much is property tax on a $400,000 home in Illinois?
About $8,040 a year, or roughly $670 a month, at the 2.01% median effective rate.
Where does Illinois rank nationally?
Illinois ranks #2 of 51 by median effective rate (1 = highest), among the highest in the country. That is 1.07% above the 0.94% US average.
Is this my exact property tax bill?
No. Your county sets the millage and assessed value. This uses the state median; homestead, senior, and veteran exemptions can lower your bill.
How does property tax work in Illinois?
Illinois property tax is set locally, not by the state. Your county assessor values your home, then applies a local millage (tax) rate. Cities, school districts, and special districts each add a share.
Because rates vary by county, this page uses the Illinois median effective rate of 2.01%. That is the median tax paid divided by the median home value, from the U.S. Census Bureau (ACS 2024). It is a benchmark, not your exact bill.
How much is property tax on a home in Illinois?
| Home value | Rate (2.01%) | Annual tax | Monthly |
|---|---|---|---|
| $200,000 | 2.01% | $4,020 | $335 |
| $400,000 | 2.01% | $8,040 | $670 |
| $263,300 (state median) | 2.01% | $5,298 | $442 |
| $750,000 | 2.01% | $15,075 | $1,256 |
How do you calculate Illinois property tax by hand?
- Find your home's assessed value on your county notice.
- Apply your county's assessment ratio if it uses one.
- Multiply the taxable value by the local millage (tax) rate.
- For a quick estimate, multiply your home value by 2.01% (the Illinois median effective rate).
What exemptions can lower your Illinois property tax?
Most counties offer a homestead exemption on your primary home. Many add relief for seniors, veterans, and people with disabilities. These lower your taxable value, so your real rate is often below the median.
Rules and amounts vary by county and change over time. Check your county assessor for the exemptions you qualify for before relying on a figure.
Why is your actual Illinois bill different from this estimate?
Three things move your bill away from the state median. Your county rate may be higher or lower than the median. Your assessed value can lag the market. And exemptions reduce the taxable amount.
Use this page to budget and compare. For the exact number, use your latest assessment notice and your county's current millage rate.
How does property tax vary by county in Illinois?
Property tax in Illinois is set and collected at the county level, so your rate depends on where you live. Across Illinois's 102 counties, the effective rate ranges from 0.83% in Hardin County to 2.28% in Winnebago County. The table lists every county's effective rate, median home value, and median tax paid (U.S. Census Bureau ACS 2024).
| County | Effective rate | Median home value | Median tax |
|---|---|---|---|
| Adams County | 1.52% | $162,600 | $2,573 |
| Alexander County | 1.17% | $59,800 | $1,084 |
| Bond County | 1.78% | $145,700 | $2,747 |
| Boone County | 1.99% | $216,900 | $4,735 |
| Brown County | 1.34% | $150,300 | $2,291 |
| Bureau County | 1.7% | $126,900 | $2,548 |
| Calhoun County | 1.08% | $190,900 | $2,644 |
| Carroll County | 1.75% | $114,500 | $2,277 |
| Cass County | 1.55% | $97,100 | $1,958 |
| Champaign County | 2.04% | $211,500 | $4,353 |
| Christian County | 1.49% | $115,500 | $1,891 |
| Clark County | 1.39% | $132,400 | $2,064 |
| Clay County | 1.22% | $97,400 | $1,392 |
| Clinton County | 1.64% | $192,400 | $3,524 |
| Coles County | 1.72% | $127,400 | $2,474 |
| Cook County | 1.73% | $324,500 | $6,191 |
| Crawford County | 1.36% | $121,100 | $1,806 |
| Cumberland County | 1.26% | $126,000 | $2,004 |
| De Witt County | 1.65% | $130,300 | $2,322 |
| DeKalb County | 2.24% | $243,600 | $5,974 |
| Douglas County | 1.64% | $150,400 | $2,554 |
| DuPage County | 1.89% | $391,400 | $8,007 |
| Edgar County | 1.33% | $97,300 | $1,409 |
| Edwards County | 1.26% | $100,000 | $1,451 |
| Effingham County | 1.37% | $189,500 | $2,823 |
| Fayette County | 1.27% | $130,700 | $1,894 |
| Ford County | 1.83% | $122,000 | $2,587 |
| Franklin County | 1.18% | $89,000 | $1,394 |
| Fulton County | 1.71% | $107,200 | $2,289 |
| Gallatin County | 1.39% | $82,900 | $1,305 |
| Greene County | 0.93% | $95,200 | $1,661 |
| Grundy County | 1.86% | $271,700 | $5,420 |
| Hamilton County | 1.22% | $113,700 | $1,512 |
| Hancock County | 1.5% | $113,800 | $2,059 |
| Hardin County | 0.83% | $103,800 | $1,001 |
| Henderson County | 1.42% | $104,400 | $1,651 |
| Henry County | 1.86% | $151,600 | $3,016 |
| Iroquois County | 1.5% | $137,800 | $2,504 |
| Jackson County | 1.84% | $137,300 | $2,526 |
| Jasper County | 1.56% | $125,500 | $2,448 |
| Jefferson County | 1.58% | $126,000 | $2,148 |
| Jersey County | 1.58% | $171,900 | $3,020 |
| Jo Daviess County | 1.49% | $209,900 | $3,613 |
| Johnson County | 1.33% | $160,500 | $1,992 |
| Kane County | 2.18% | $327,000 | $7,382 |
| Kankakee County | 2.04% | $192,600 | $4,266 |
| Kendall County | 2.28% | $322,400 | $7,651 |
| Knox County | 1.81% | $111,900 | $2,190 |
| LaSalle County | 1.9% | $161,900 | $3,418 |
| Lake County | 2.26% | $345,700 | $8,923 |
| Lawrence County | 0.9% | $99,100 | $1,174 |
| Lee County | 1.77% | $154,600 | $3,048 |
| Livingston County | 1.88% | $142,200 | $2,908 |
| Logan County | 1.72% | $134,400 | $2,385 |
| Macon County | 1.99% | $127,300 | $2,696 |
| Macoupin County | 1.39% | $138,200 | $2,073 |
| Madison County | 1.79% | $173,000 | $3,319 |
| Marion County | 1.54% | $103,000 | $1,759 |
| Marshall County | 1.7% | $142,800 | $2,766 |
| Mason County | 1.8% | $103,400 | $2,162 |
| Massac County | 1.3% | $121,900 | $1,704 |
| McDonough County | 1.82% | $107,500 | $2,285 |
| McHenry County | 2.26% | $308,100 | $7,274 |
| McLean County | 2.11% | $208,400 | $4,524 |
| Menard County | 1.66% | $185,500 | $3,190 |
| Mercer County | 1.77% | $146,700 | $2,878 |
| Monroe County | 1.46% | $282,100 | $4,588 |
| Montgomery County | 1.32% | $112,300 | $1,887 |
| Morgan County | 1.7% | $130,800 | $2,306 |
| Moultrie County | 1.74% | $134,000 | $2,414 |
| Ogle County | 1.81% | $189,200 | $3,889 |
| Peoria County | 2.15% | $158,500 | $3,552 |
| Perry County | 1.42% | $112,600 | $1,807 |
| Piatt County | 1.66% | $180,600 | $3,265 |
| Pike County | 1.42% | $101,400 | $1,556 |
| Pope County | 0.99% | $143,800 | $1,477 |
| Pulaski County | 1.03% | $85,100 | $869 |
| Putnam County | 1.46% | $172,700 | $2,705 |
| Randolph County | 1.29% | $135,100 | $1,927 |
| Richland County | 1.16% | $112,000 | $1,769 |
| Rock Island County | 2.13% | $150,400 | $3,425 |
| Saline County | 1.65% | $94,300 | $1,597 |
| Sangamon County | 1.89% | $176,300 | $3,512 |
| Schuyler County | 1.55% | $109,700 | $1,950 |
| Scott County | 1.35% | $96,400 | $1,446 |
| Shelby County | 1.34% | $137,100 | $2,063 |
| St. Clair County | 1.83% | $180,300 | $3,665 |
| Stark County | 1.62% | $104,500 | $1,768 |
| Stephenson County | 2.09% | $134,900 | $3,240 |
| Tazewell County | 1.98% | $167,500 | $3,536 |
| Union County | 1.15% | $131,700 | $1,712 |
| Vermilion County | 1.62% | $97,200 | $1,757 |
| Wabash County | 1.3% | $104,900 | $1,475 |
| Warren County | 1.28% | $105,000 | $1,903 |
| Washington County | 1.58% | $155,700 | $2,908 |
| Wayne County | 1.42% | $110,700 | $1,653 |
| White County | 1.01% | $108,100 | $1,444 |
| Whiteside County | 1.74% | $127,100 | $2,598 |
| Will County | 2.1% | $319,600 | $7,173 |
| Williamson County | 1.57% | $156,400 | $2,690 |
| Winnebago County | 2.28% | $164,500 | $3,930 |
| Woodford County | 1.9% | $197,600 | $4,215 |