Illinois property tax calculator
Estimate your Illinois property tax by county. The statewide average effective rate is 1.88%, #1 of 51 among states and DC. Pick your county below for a closer number.
Pick your state and county and enter your home value. Your estimate shows up here.
An estimate, not a tax bill. Effective rates are county medians of taxes paid divided by home value (Tax Foundation 2025, ACS 2020-2024). Your bill depends on your exemptions, school district and local levies.
Illinois property tax rates by county
Effective rate = median property tax paid divided by median home value, owner-occupied homes. Counties with a link have a Grove Hopper appeal guide with the deadline and forms.
| County | Rate | Median tax | Median home |
|---|---|---|---|
| Adams County | 1.52% | $2,573 | $162,600 |
| Alexander County | 1.17% | $1,084 | $59,800 |
| Bond County | 1.78% | $2,747 | $145,700 |
| Boone County | 1.99% | $4,735 | $216,900 |
| Brown County | 1.34% | $2,291 | $150,300 |
| Bureau County | 1.70% | $2,548 | $126,900 |
| Calhoun County | 1.08% | $2,644 | $190,900 |
| Carroll County | 1.75% | $2,277 | $114,500 |
| Cass County | 1.55% | $1,958 | $97,100 |
| Champaign County | 2.04% | $4,353 | $211,500 |
| Christian County | 1.49% | $1,891 | $115,500 |
| Clark County | 1.39% | $2,064 | $132,400 |
| Clay County | 1.22% | $1,392 | $97,400 |
| Clinton County | 1.64% | $3,524 | $192,400 |
| Coles County | 1.72% | $2,474 | $127,400 |
| Cook County | 1.73% | $6,191 | $324,500 |
| Crawford County | 1.36% | $1,806 | $121,100 |
| Cumberland County | 1.26% | $2,004 | $126,000 |
| De Witt County | 1.65% | $2,322 | $130,300 |
| DeKalb County | 2.24% | $5,974 | $243,600 |
| Douglas County | 1.64% | $2,554 | $150,400 |
| DuPage County | 1.89% | $8,007 | $391,400 |
| Edgar County | 1.33% | $1,409 | $97,300 |
| Edwards County | 1.26% | $1,451 | $100,000 |
| Effingham County | 1.37% | $2,823 | $189,500 |
| Fayette County | 1.27% | $1,894 | $130,700 |
| Ford County | 1.83% | $2,587 | $122,000 |
| Franklin County | 1.18% | $1,394 | $89,000 |
| Fulton County | 1.71% | $2,289 | $107,200 |
| Gallatin County | 1.39% | $1,305 | $82,900 |
| Greene County | 0.93% | $1,661 | $95,200 |
| Grundy County | 1.86% | $5,420 | $271,700 |
| Hamilton County | 1.22% | $1,512 | $113,700 |
| Hancock County | 1.50% | $2,059 | $113,800 |
| Hardin County | 0.83% | $1,001 | $103,800 |
| Henderson County | 1.42% | $1,651 | $104,400 |
| Henry County | 1.86% | $3,016 | $151,600 |
| Iroquois County | 1.50% | $2,504 | $137,800 |
| Jackson County | 1.84% | $2,526 | $137,300 |
| Jasper County | 1.56% | $2,448 | $125,500 |
| Jefferson County | 1.58% | $2,148 | $126,000 |
| Jersey County | 1.58% | $3,020 | $171,900 |
| Jo Daviess County | 1.49% | $3,613 | $209,900 |
| Johnson County | 1.33% | $1,992 | $160,500 |
| Kane County | 2.18% | $7,382 | $327,000 |
| Kankakee County | 2.04% | $4,266 | $192,600 |
| Kendall County | 2.28% | $7,651 | $322,400 |
| Knox County | 1.81% | $2,190 | $111,900 |
| Lake County | 2.26% | $8,923 | $345,700 |
| LaSalle County | 1.90% | $3,418 | $161,900 |
| Lawrence County | 0.90% | $1,174 | $99,100 |
| Lee County | 1.77% | $3,048 | $154,600 |
| Livingston County | 1.88% | $2,908 | $142,200 |
| Logan County | 1.72% | $2,385 | $134,400 |
| Macon County | 1.99% | $2,696 | $127,300 |
| Macoupin County | 1.39% | $2,073 | $138,200 |
| Madison County | 1.79% | $3,319 | $173,000 |
| Marion County | 1.54% | $1,759 | $103,000 |
| Marshall County | 1.70% | $2,766 | $142,800 |
| Mason County | 1.80% | $2,162 | $103,400 |
| Massac County | 1.30% | $1,704 | $121,900 |
| McDonough County | 1.82% | $2,285 | $107,500 |
| McHenry County | 2.26% | $7,274 | $308,100 |
| McLean County | 2.11% | $4,524 | $208,400 |
| Menard County | 1.66% | $3,190 | $185,500 |
| Mercer County | 1.77% | $2,878 | $146,700 |
| Monroe County | 1.46% | $4,588 | $282,100 |
| Montgomery County | 1.32% | $1,887 | $112,300 |
| Morgan County | 1.70% | $2,306 | $130,800 |
| Moultrie County | 1.74% | $2,414 | $134,000 |
| Ogle County | 1.81% | $3,889 | $189,200 |
| Peoria County | 2.15% | $3,552 | $158,500 |
| Perry County | 1.42% | $1,807 | $112,600 |
| Piatt County | 1.66% | $3,265 | $180,600 |
| Pike County | 1.42% | $1,556 | $101,400 |
| Pope County | 0.99% | $1,477 | $143,800 |
| Pulaski County | 1.03% | $869 | $85,100 |
| Putnam County | 1.46% | $2,705 | $172,700 |
| Randolph County | 1.29% | $1,927 | $135,100 |
| Richland County | 1.16% | $1,769 | $112,000 |
| Rock Island County | 2.13% | $3,425 | $150,400 |
| Saline County | 1.65% | $1,597 | $94,300 |
| Sangamon County | 1.89% | $3,512 | $176,300 |
| Schuyler County | 1.55% | $1,950 | $109,700 |
| Scott County | 1.35% | $1,446 | $96,400 |
| Shelby County | 1.34% | $2,063 | $137,100 |
| St. Clair County | 1.83% | $3,665 | $180,300 |
| Stark County | 1.62% | $1,768 | $104,500 |
| Stephenson County | 2.09% | $3,240 | $134,900 |
| Tazewell County | 1.98% | $3,536 | $167,500 |
| Union County | 1.15% | $1,712 | $131,700 |
| Vermilion County | 1.62% | $1,757 | $97,200 |
| Wabash County | 1.30% | $1,475 | $104,900 |
| Warren County | 1.28% | $1,903 | $105,000 |
| Washington County | 1.58% | $2,908 | $155,700 |
| Wayne County | 1.42% | $1,653 | $110,700 |
| White County | 1.01% | $1,444 | $108,100 |
| Whiteside County | 1.74% | $2,598 | $127,100 |
| Will County | 2.10% | $7,173 | $319,600 |
| Williamson County | 1.57% | $2,690 | $156,400 |
| Winnebago County | 2.28% | $3,930 | $164,500 |
| Woodford County | 1.90% | $4,215 | $197,600 |
Illinois property tax FAQs
What is the average property tax rate in Illinois?
Illinois's average effective property tax rate is 1.88% of home value, which ranks #1 of 51 among the states and DC (#1 is highest). Source: Tax Foundation 2025 (ACS 2020-2024 median taxes paid / median home value).
How much is property tax on a $400,000 home in Illinois?
At the Illinois average of 1.88%, about $7,520 a year. By county it ranges from about $3,320 in Hardin County (0.83%) to about $9,120 in Kendall County (2.28%).
Which Illinois county has the highest property tax rate?
Kendall County has the highest average effective rate in the dataset at 2.28%. Hardin County has the lowest at 0.83%. Source: Tax Foundation 2025 (ACS 2020-2024 median taxes paid / median home value).
How can I lower my Illinois property tax bill?
The main lever is your assessed value. If it is higher than what similar nearby homes sell for, you can appeal it, and also check whether you qualify for exemptions. Appeals are filed by the homeowner with the county or local board, and deadlines vary by county.
Appealing in Illinois? See the Illinois county appeal guides →
Source: Tax Foundation 2025 (ACS 2020-2024 median taxes paid / median home value), taxfoundation.org. Estimates are not tax bills. Grove Hopper is a research tool with reminders and document preparation, not attorneys, accountants or a tax firm.