Illinois · Updated Oct 2026
Illinois property tax appeals by county
Outside Cook County, the township (or multi-township) assessor sets values and the county supervisor of assessments reviews and equalizes them. In Cook County (Chicago area), the elected Cook County Assessor sets all values. Find your county for contact details, local tax figures and a step-by-step guide.
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| County | Office phone | Tax rate | Median tax |
|---|---|---|---|
| Adams | See page | 1.52% | $2,573 |
| Alexander | See page | 1.17% | $1,084 |
| Bond | 618-664-2848 | 1.78% | $2,747 |
| Boone | See page | 1.99% | $4,735 |
| Brown | 217-773-3415 | 1.34% | $2,291 |
| Bureau | See page | 1.70% | $2,548 |
| Calhoun | See page | 1.08% | $2,644 |
| Carroll | See page | 1.75% | $2,277 |
| Cass | See page | 1.55% | $1,958 |
| Champaign | See page | 2.04% | $4,353 |
| Christian | See page | 1.49% | $1,891 |
| Clark | See page | 1.39% | $2,064 |
| Clay | See page | 1.22% | $1,392 |
| Clinton | See page | 1.64% | $3,524 |
| Coles | See page | 1.72% | $2,474 |
| Cook | (312) 443-7550 | 1.73% | $6,191 |
| Crawford | See page | 1.36% | $1,806 |
| Cumberland | See page | 1.26% | $2,004 |
| De Witt | See page | 1.65% | $2,322 |
| DeKalb | 815-895-7120 | 2.24% | $5,974 |
| Douglas | See page | 1.64% | $2,554 |
| DuPage | See page | 1.89% | $8,007 |
| Edgar | 217-466-7418 | 1.33% | $1,409 |
| Edwards | See page | 1.26% | $1,451 |
| Effingham | See page | 1.37% | $2,823 |
| Fayette | See page | 1.27% | $1,894 |
| Ford | See page | 1.83% | $2,587 |
| Franklin | 618-435-9800 | 1.18% | $1,394 |
| Fulton | See page | 1.71% | $2,289 |
| Gallatin | See page | 1.39% | $1,305 |
| Greene | See page | 0.93% | $1,661 |
| Grundy | 815-941-3269 | 1.86% | $5,420 |
| Hamilton | 618-643-3971 | 1.22% | $1,512 |
| Hancock | 217-357-2615 | 1.50% | $2,059 |
| Hardin | See page | 0.83% | $1,001 |
| Henderson | See page | 1.42% | $1,651 |
| Henry | See page | 1.86% | $3,016 |
| Iroquois | See page | 1.50% | $2,504 |
| Jackson | See page | 1.84% | $2,526 |
| Jasper | See page | 1.56% | $2,448 |
| Jefferson | 618-244-8000 | 1.58% | $2,148 |
| Jersey | See page | 1.58% | $3,020 |
| Jo Daviess | See page | 1.49% | $3,613 |
| Johnson | See page | 1.33% | $1,992 |
| Kane | 630-208-3818 | 2.18% | $7,382 |
| Kankakee | See page | 2.04% | $4,266 |
| Kendall | See page | 2.28% | $7,651 |
| Knox | See page | 1.81% | $2,190 |
| Lake | See page | 2.26% | $8,923 |
| LaSalle | See page | 1.90% | $3,418 |
| Lawrence | See page | 0.90% | $1,174 |
| Lee | See page | 1.77% | $3,048 |
| Livingston | See page | 1.88% | $2,908 |
| Logan | See page | 1.72% | $2,385 |
| Macon | 217-424-1364 | 1.99% | $2,696 |
| Macoupin | 217-854-8281 | 1.39% | $2,073 |
| Madison | 618-692-6210 | 1.79% | $3,319 |
| Marion | See page | 1.54% | $1,759 |
| Marshall | See page | 1.70% | $2,766 |
| Mason | See page | 1.80% | $2,162 |
| Massac | See page | 1.30% | $1,704 |
| McDonough | See page | 1.82% | $2,285 |
| McHenry | See page | 2.26% | $7,274 |
| McLean | 309-888-5130 | 2.11% | $4,524 |
| Menard | 217-632-4461 | 1.66% | $3,190 |
| Mercer | 309-582-7814 | 1.77% | $2,878 |
| Monroe | See page | 1.46% | $4,588 |
| Montgomery | See page | 1.32% | $1,887 |
| Morgan | 217-243-8557 | 1.70% | $2,306 |
| Moultrie | See page | 1.74% | $2,414 |
| Ogle | 815-732-1150 | 1.81% | $3,889 |
| Peoria | See page | 2.15% | $3,552 |
| Perry | See page | 1.42% | $1,807 |
| Piatt | See page | 1.66% | $3,265 |
| Pike | See page | 1.42% | $1,556 |
| Pope | See page | 0.99% | $1,477 |
| Pulaski | 618-748-9321 | 1.03% | $869 |
| Putnam | See page | 1.46% | $2,705 |
| Randolph | See page | 1.29% | $1,927 |
| Richland | See page | 1.16% | $1,769 |
| Rock Island | See page | 2.13% | $3,425 |
| Saline | 618-252-0691 | 1.65% | $1,597 |
| Sangamon | 217-753-6805 | 1.89% | $3,512 |
| Schuyler | See page | 1.55% | $1,950 |
| Scott | See page | 1.35% | $1,446 |
| Shelby | See page | 1.34% | $2,063 |
| St. Clair | 618-825-2704 | 1.83% | $3,665 |
| Stark | See page | 1.62% | $1,768 |
| Stephenson | See page | 2.09% | $3,240 |
| Tazewell | See page | 1.98% | $3,536 |
| Union | See page | 1.15% | $1,712 |
| Vermilion | See page | 1.62% | $1,757 |
| Wabash | See page | 1.30% | $1,475 |
| Warren | 309-734-8561 | 1.28% | $1,903 |
| Washington | See page | 1.58% | $2,908 |
| Wayne | See page | 1.42% | $1,653 |
| White | 618-382-2332 | 1.01% | $1,444 |
| Whiteside | See page | 1.74% | $2,598 |
| Will | 815-740-4648 | 2.10% | $7,173 |
| Williamson | 618-998-2189 | 1.57% | $2,690 |
| Winnebago | 815-319-4444 | 2.28% | $3,930 |
| Woodford | See page | 1.90% | $4,215 |