Illinois Property Tax Data
ACS 2024 property tax data for 102 counties in IL.
The average median property tax in Illinois is $2,851/year, which is 43% above the national average of $1,993. The average effective tax rate is 1.80% on a median home value of $153,020. Taxes range from $869 in Pulaski County to $8,923 in Lake County.
What This Data Tells Us About Illinois
Across 102 counties in Illinois, the average median property tax is $2,851 per year, 43% above the national median of $1,993. The statewide effective rate of 1.80% on a median home value of $153,020 reflects how Illinois's assessment rules and local millage combine at the household level.
Within Illinois, median annual tax ranges from $869 in Pulaski County (effective rate 1.02%) to $8,923 in Lake County (effective rate 2.58%). Median home values in Illinois ($153,020) compared with $227,791 nationally help explain why the same effective rate produces different dollar bills in different states. Within-state variation often tracks local school levies, county bonds, and municipal overlays rather than a single statewide rate.
This page is for informational purposes only and is not tax, legal, or financial advice. Figures describe median homeowner households reported to the Census Bureau — individual bills can differ based on assessed value, exemptions, special districts, and local overlays. Always confirm current rates with your county assessor or a qualified professional before making decisions that rely on these numbers.
State Average vs National Average
Lowest Property Taxes in Illinois
Counties with the cheapest tax bills →
Highest Property Taxes in Illinois
Counties with the most expensive tax bills →
Top 5 Lowest Tax Counties
Top 5 Highest Tax Counties
Tax Affordability Score
Based on the average effective tax rate of 1.80% compared to the national average of 0.92%. Illinois has above-average property tax rates, contributing to higher housing costs.
All Counties in Illinois (102)
| County | Median Tax | Effective Rate |
|---|---|---|
| Adams County | $2,573 | 1.58% |
| Alexander County | $1,084 | 1.81% |
| Bond County | $2,747 | 1.89% |
| Boone County | $4,735 | 2.18% |
| Brown County | $2,291 | 1.52% |
| Bureau County | $2,548 | 2.01% |
| Calhoun County | $2,644 | 1.39% |
| Carroll County | $2,277 | 1.99% |
| Cass County | $1,958 | 2.02% |
| Champaign County | $4,353 | 2.06% |
| Christian County | $1,891 | 1.64% |
| Clark County | $2,064 | 1.56% |
| Clay County | $1,392 | 1.43% |
| Clinton County | $3,524 | 1.83% |
| Coles County | $2,474 | 1.94% |
| Cook County | $6,191 | 1.91% |
| Crawford County | $1,806 | 1.49% |
| Cumberland County | $2,004 | 1.59% |
| De Witt County | $2,322 | 1.78% |
| DeKalb County | $5,974 | 2.45% |
| Douglas County | $2,554 | 1.70% |
| DuPage County | $8,007 | 2.05% |
| Edgar County | $1,409 | 1.45% |
| Edwards County | $1,451 | 1.45% |
| Effingham County | $2,823 | 1.49% |
| Fayette County | $1,894 | 1.45% |
| Ford County | $2,587 | 2.12% |
| Franklin County | $1,394 | 1.57% |
| Fulton County | $2,289 | 2.14% |
| Gallatin County | $1,305 | 1.57% |
| Greene County | $1,661 | 1.74% |
| Grundy County | $5,420 | 1.99% |
| Hamilton County | $1,512 | 1.33% |
| Hancock County | $2,059 | 1.81% |
| Hardin County | $1,001 | 0.96% |
| Henderson County | $1,651 | 1.58% |
| Henry County | $3,016 | 1.99% |
| Iroquois County | $2,504 | 1.82% |
| Jackson County | $2,526 | 1.84% |
| Jasper County | $2,448 | 1.95% |
| Jefferson County | $2,148 | 1.70% |
| Jersey County | $3,020 | 1.76% |
| Jo Daviess County | $3,613 | 1.72% |
| Johnson County | $1,992 | 1.24% |
| Kane County | $7,382 | 2.26% |
| Kankakee County | $4,266 | 2.21% |
| Kendall County | $7,651 | 2.37% |
| Knox County | $2,190 | 1.96% |
| LaSalle County | $3,418 | 2.11% |
| Lake County | $8,923 | 2.58% |
| Lawrence County | $1,174 | 1.18% |
| Lee County | $3,048 | 1.97% |
| Livingston County | $2,908 | 2.05% |
| Logan County | $2,385 | 1.77% |
| Macon County | $2,696 | 2.12% |
| Macoupin County | $2,073 | 1.50% |
| Madison County | $3,319 | 1.92% |
| Marion County | $1,759 | 1.71% |
| Marshall County | $2,766 | 1.94% |
| Mason County | $2,162 | 2.09% |
| Massac County | $1,704 | 1.40% |
| McDonough County | $2,285 | 2.13% |
| McHenry County | $7,274 | 2.36% |
| McLean County | $4,524 | 2.17% |
| Menard County | $3,190 | 1.72% |
| Mercer County | $2,878 | 1.96% |
| Monroe County | $4,588 | 1.63% |
| Montgomery County | $1,887 | 1.68% |
| Morgan County | $2,306 | 1.76% |
| Moultrie County | $2,414 | 1.80% |
| Ogle County | $3,889 | 2.06% |
| Peoria County | $3,552 | 2.24% |
| Perry County | $1,807 | 1.60% |
| Piatt County | $3,265 | 1.81% |
| Pike County | $1,556 | 1.53% |
| Pope County | $1,477 | 1.03% |
| Pulaski County | $869 | 1.02% |
| Putnam County | $2,705 | 1.57% |
| Randolph County | $1,927 | 1.43% |
| Richland County | $1,769 | 1.58% |
| Rock Island County | $3,425 | 2.28% |
| Saline County | $1,597 | 1.69% |
| Sangamon County | $3,512 | 1.99% |
| Schuyler County | $1,950 | 1.78% |
| Scott County | $1,446 | 1.50% |
| Shelby County | $2,063 | 1.50% |
| St. Clair County | $3,665 | 2.03% |
| Stark County | $1,768 | 1.69% |
| Stephenson County | $3,240 | 2.40% |
| Tazewell County | $3,536 | 2.11% |
| Union County | $1,712 | 1.30% |
| Vermilion County | $1,757 | 1.81% |
| Wabash County | $1,475 | 1.41% |
| Warren County | $1,903 | 1.81% |
| Washington County | $2,908 | 1.87% |
| Wayne County | $1,653 | 1.49% |
| White County | $1,444 | 1.34% |
| Whiteside County | $2,598 | 2.04% |
| Will County | $7,173 | 2.24% |
| Williamson County | $2,690 | 1.72% |
| Winnebago County | $3,930 | 2.39% |
| Woodford County | $4,215 | 2.13% |
Frequently Asked Questions
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Property Tax Guides
Related Data for Illinois
Read our methodology — how this data is sourced, computed, and verified.