In tax year 2026, the median Illinois homeowner paid $5,277 in property taxes, a median effective rate of 2.33% of market value, compared with 1.27% nationally. Illinois has some of the highest property tax rates in the country, largely because schools and local governments depend on them. Rates range from 1.60% in Pope County to 7.35% in Jasper County.
- Median Illinois effective property tax rate: 2.33%
- Median Illinois home value: $227,888
- Median Illinois property tax bill: $5,277
- Highest median bill: Lake County $8,402
- Lowest median bill: Hardin County $459
Last Updated October 26, 2026
How Property Taxes Work in Illinois
Township or county assessors estimate your home's market value. Outside Cook County, assessors value homes at one-third (33.33%) of market value. In Cook County, residential property is assessed at 10% of market value. The state then applies an equalization factor, often called the multiplier, to make assessments consistent across counties.
Your bill is your equalized assessed value, minus exemptions, multiplied by the combined rate of every taxing district that covers your home, including the county, township, city, school districts, park district, library, and more. Illinois property taxes are paid in arrears, so the bill you pay this year is for last year's taxes.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Illinois Effective Property Tax Rate
2.33%
Median Illinois Home Value
$227,888
Median Illinois Tax Bill
$5,277
What is the Median Effective Property Tax Rate?
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Because Cook County and the rest of Illinois assess at different levels, the effective rate is the fairest way to compare counties.
Counties With the Highest and Lowest Property Taxes
Five Highest Median Property Tax Bills
| Rank | County | Median Tax Bill |
|---|---|---|
| 1. | Lake County | $8,402 |
| 2. | Kendall County | $8,237 |
| 3. | Will County | $7,585 |
| 4. | DuPage County | $7,578 |
| 5. | McHenry County | $7,056 |
Five Lowest Median Property Tax Bills
| Rank | County | Median Tax Bill |
|---|---|---|
| 90. | Gallatin County | $823 |
| 91. | Clay County | $804 |
| 92. | Edwards County | $774 |
| 93. | Washington County | $590 |
| 94. | Hardin County | $459 |
94 of 102 Illinois counties have a median effective rate above the national 1.27%. Jasper County has the highest median effective rate at 7.35%, and Pope County has the lowest at 1.60%.
Property Tax Rates and Bills by County
| Rank | County | Median Effective Tax Rate | Median Home Value | Median Tax Bill | 25th % Bill | 75th % Bill | 90th % Bill |
|---|---|---|---|---|---|---|---|
| 1 | Lake County | 2.61% | $317,980 | $8,402 | $5,391 | $12,509 | $17,971 |
| 2 | Kendall County | 2.55% | $326,865 | $8,237 | $6,104 | $10,178 | $12,149 |
| 3 | Will County | 2.67% | $280,557 | $7,585 | $5,414 | $10,431 | $13,551 |
| 4 | DuPage County | 2.16% | $340,350 | $7,578 | $5,385 | $10,316 | $14,230 |
| 5 | McHenry County | 2.42% | $297,576 | $7,056 | $5,133 | $9,362 | $11,747 |
| 6 | Kane County | 2.49% | $279,433 | $6,802 | $4,815 | $9,504 | $12,296 |
| 7 | Cook County | 2.14% | $248,820 | $5,588 | $2,954 | $8,435 | $12,450 |
| 8 | DeKalb County | 2.44% | $222,627 | $5,381 | $4,089 | $7,181 | $9,264 |
| 9 | Livingston County | 3.08% | $143,247 | $5,077 | $3,058 | $7,889 | $11,486 |
| 10 | Grundy County | 2.61% | $179,043 | $4,909 | $3,106 | $7,918 | $13,104 |
| 11 | Boone County | 2.48% | $205,580 | $4,861 | $3,265 | $7,320 | $9,633 |
| 12 | Piatt County | 2.65% | $166,368 | $4,789 | $2,873 | $8,499 | $13,592 |
| 13 | Kankakee County | 3.15% | $151,347 | $4,678 | $2,965 | $7,115 | $10,123 |
| 14 | Logan County | 2.68% | $162,930 | $4,563 | $2,458 | $7,323 | $10,583 |
| 15 | Putnam County | 2.81% | $142,992 | $4,451 | $2,637 | $6,695 | $9,281 |
| 16 | De Witt County | 2.09% | $167,912 | $4,278 | $2,481 | $6,725 | $9,493 |
| 17 | Mercer County | 2.81% | $150,030 | $4,254 | $2,247 | $6,848 | $10,539 |
| 18 | McLean County | 2.12% | $202,755 | $4,175 | $2,778 | $6,035 | $8,336 |
| 19 | Champaign County | 2.30% | $183,720 | $4,115 | $2,544 | $6,146 | $8,995 |
| 20 | Jo Daviess County | 2.07% | $193,008 | $4,046 | $2,478 | $5,744 | $8,316 |
| 21 | Ogle County | 2.51% | $162,136 | $3,993 | $2,699 | $5,711 | $7,597 |
| 22 | Marshall County | 2.89% | $135,138 | $3,953 | $2,123 | $5,822 | $8,493 |
| 23 | Stark County | 2.47% | $164,277 | $3,805 | $2,186 | $6,785 | $9,834 |
| 24 | Woodford County | 2.39% | $166,185 | $3,784 | $1,882 | $5,870 | $8,148 |
| 25 | Winnebago County | 2.49% | $151,126 | $3,565 | $2,131 | $5,343 | $7,202 |
| 26 | Iroquois County | 2.86% | $113,187 | $3,480 | $1,976 | $5,868 | $8,661 |
| 27 | Rock Island County | 2.93% | $121,995 | $3,439 | $2,281 | $5,008 | $7,108 |
| 28 | Sangamon County | 2.28% | $152,802 | $3,372 | $1,945 | $5,358 | $8,055 |
| 29 | Tazewell County | 2.23% | $149,430 | $3,287 | $2,057 | $5,038 | $7,382 |
| 30 | Madison County | 2.11% | $152,490 | $3,074 | $1,820 | $5,266 | $7,820 |
| 31 | Jersey County | 2.18% | $135,510 | $3,033 | $1,477 | $4,668 | $6,414 |
| 32 | Effingham County | 1.88% | $171,690 | $3,031 | $1,895 | $4,570 | $6,506 |
| 33 | St. Clair County | 2.51% | $123,447 | $2,978 | $1,710 | $4,933 | $7,203 |
| 34 | Clinton County | 2.02% | $152,625 | $2,950 | $1,654 | $4,569 | $6,227 |
| 35 | LaSalle County | 2.91% | $101,838 | $2,856 | $1,956 | $4,542 | $6,881 |
| 36 | Henry County | 2.16% | $132,510 | $2,832 | $1,535 | $4,578 | $6,838 |
| 37 | Montgomery County | 2.68% | $101,482 | $2,749 | $1,452 | $4,642 | $6,307 |
| 38 | Peoria County | 2.62% | $109,950 | $2,655 | $1,157 | $4,782 | $7,715 |
| 39 | Whiteside County | 2.36% | $107,532 | $2,559 | $1,666 | $3,761 | $5,334 |
| 40 | Jackson County | 2.77% | $91,218 | $2,526 | $1,360 | $4,141 | $6,333 |
| 41 | Moultrie County | 2.26% | $110,660 | $2,485 | $1,380 | $4,192 | $6,220 |
| 42 | Ford County | 2.39% | $108,705 | $2,483 | $1,443 | $3,925 | $6,279 |
| 43 | Brown County | 2.76% | $91,365 | $2,451 | $1,310 | $4,021 | $5,930 |
| 44 | Carroll County | 2.17% | $106,464 | $2,444 | $1,368 | $4,474 | $8,011 |
| 45 | Crawford County | 2.65% | $84,738 | $2,426 | $1,304 | $4,236 | $6,372 |
| 46 | Shelby County | 1.92% | $135,435 | $2,407 | $1,110 | $3,958 | $5,718 |
| 47 | Macon County | 2.49% | $102,602 | $2,391 | $1,102 | $3,923 | $6,305 |
| 48 | Knox County | 2.82% | $93,540 | $2,355 | $990 | $5,090 | $8,889 |
| 49 | Mason County | 3.12% | $72,273 | $2,327 | $1,123 | $4,256 | $6,147 |
| 50 | Douglas County | 2.20% | $106,882 | $2,297 | $1,333 | $3,685 | $5,770 |
| 51 | Bureau County | 2.27% | $105,186 | $2,296 | $1,331 | $3,690 | $5,425 |
| 52 | Cumberland County | 1.98% | $105,876 | $2,239 | $1,183 | $3,667 | $5,001 |
| 53 | Jasper County | 7.35% | $34,878 | $2,236 | $1,045 | $4,011 | $5,890 |
| 54 | Stephenson County | 3.02% | $75,993 | $2,141 | $1,226 | $3,632 | $5,507 |
| 55 | Morgan County | 2.08% | $107,895 | $2,129 | $1,164 | $3,647 | $5,412 |
| 56 | Adams County | 2.17% | $96,300 | $2,088 | $1,170 | $3,461 | $5,199 |
| 57 | McDonough County | 2.96% | $74,048 | $2,037 | $1,083 | $3,559 | $5,502 |
| 58 | Williamson County | 2.31% | $92,430 | $1,966 | $997 | $3,751 | $6,004 |
| 59 | Menard County | 2.31% | $87,915 | $1,925 | $665 | $4,271 | $6,525 |
| 60 | Richland County | 2.29% | $86,475 | $1,915 | $997 | $3,694 | $6,072 |
| 61 | Calhoun County | 2.17% | $95,760 | $1,875 | $980 | $3,248 | $5,262 |
| 62 | Saline County | 2.76% | $62,342 | $1,858 | $833 | $3,588 | $5,403 |
| 63 | Cass County | 2.16% | $82,410 | $1,851 | $1,202 | $2,798 | $4,020 |
| 64 | Coles County | 2.02% | $97,527 | $1,798 | $745 | $3,616 | $6,408 |
| 65 | Fulton County | 2.65% | $72,042 | $1,787 | $986 | $2,811 | $4,120 |
| 66 | Hancock County | 3.10% | $58,838 | $1,760 | $839 | $3,082 | $5,549 |
| 67 | Clark County | 1.95% | $89,572 | $1,620 | $798 | $2,783 | $4,393 |
| 68 | Perry County | 1.76% | $91,395 | $1,599 | $813 | $2,715 | $3,919 |
| 69 | Schuyler County | 2.06% | $81,402 | $1,569 | $669 | $2,711 | $3,965 |
| 70 | Wayne County | 2.08% | $66,490 | $1,567 | $667 | $2,957 | $4,692 |
| 71 | Macoupin County | 1.75% | $93,672 | $1,566 | $843 | $2,611 | $3,928 |
| 72 | Vermilion County | 2.41% | $73,644 | $1,557 | $793 | $2,855 | $4,621 |
| 73 | Franklin County | 2.43% | $58,980 | $1,556 | $774 | $2,738 | $4,339 |
| 74 | Scott County | 2.34% | $62,602 | $1,529 | $979 | $2,143 | $4,869 |
| 75 | Massac County | 2.45% | $63,555 | $1,476 | $499 | $2,800 | $4,102 |
| 76 | Fayette County | 1.85% | $91,032 | $1,441 | $656 | $2,578 | $3,902 |
| 77 | Pike County | 1.79% | $81,742 | $1,400 | $726 | $2,431 | $4,019 |
| 78 | Jefferson County | 1.82% | $80,739 | $1,350 | $563 | $2,687 | $4,196 |
| 79 | Johnson County | 2.08% | $72,777 | $1,260 | $479 | $2,518 | $3,957 |
| 80 | Randolph County | 2.00% | $54,615 | $1,257 | $562 | $2,172 | $3,656 |
| 81 | Wabash County | 2.35% | $50,700 | $1,152 | $815 | $1,552 | $2,072 |
| 82 | Marion County | 1.85% | $68,010 | $1,146 | $440 | $2,788 | $4,674 |
| 83 | Hamilton County | 1.67% | $72,514 | $1,129 | $473 | $2,254 | $3,636 |
| 84 | Greene County | 2.00% | $57,052 | $1,067 | $522 | $1,758 | $2,590 |
| 85 | Pope County | 1.60% | $77,966 | $1,063 | $500 | $1,980 | $3,169 |
| 86 | Alexander County | 2.60% | $42,570 | $1,043 | $493 | $2,227 | $3,610 |
| 87 | Bond County | 2.38% | $46,862 | $1,042 | $352 | $2,168 | $4,545 |
| 88 | Lawrence County | 3.83% | $27,140 | $1,032 | $418 | $2,180 | $3,656 |
| 89 | White County | 1.83% | $58,494 | $968 | $468 | $1,735 | $2,899 |
| 90 | Gallatin County | 2.07% | $47,868 | $823 | $294 | $1,804 | $2,959 |
| 91 | Clay County | 1.75% | $51,015 | $804 | $262 | $1,825 | $3,081 |
| 92 | Edwards County | 2.26% | $35,190 | $774 | $453 | $1,315 | $1,923 |
| 93 | Washington County | 2.33% | $35,342 | $590 | $195 | $1,241 | $1,996 |
| 94 | Hardin County | 1.68% | $34,482 | $459 | $195 | $871 | $1,535 |
| — | Christian County | N/A | N/A | N/A | N/A | N/A | N/A |
| — | Edgar County | N/A | N/A | N/A | N/A | N/A | N/A |
| — | Henderson County | N/A | N/A | N/A | N/A | N/A | N/A |
| — | Lee County | N/A | N/A | N/A | N/A | N/A | N/A |
| — | Monroe County | N/A | N/A | N/A | N/A | N/A | N/A |
| — | Pulaski County | N/A | N/A | N/A | N/A | N/A | N/A |
| — | Union County | N/A | N/A | N/A | N/A | N/A | N/A |
| — | Warren County | N/A | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
How to Appeal Your Property Taxes in Illinois
You can appeal if your assessed value is too high for your home's market value, higher than similar homes, or if your property details are wrong.
Review your assessment notice
Notices are mailed or published after reassessment. Cook County reassesses one-third of the county each year, while most other counties reassess every four years and make annual adjustments.
Cook County: Appeal to the Assessor
Cook County homeowners can first appeal to the Cook County Assessor's Office during their township's filing window, usually about 30 days after notices are mailed.
Board of Review
In every county, you can appeal to the county Board of Review, typically within 30 days of when assessments are published. In Cook County, this is a separate, second chance to appeal.
Further appeal
If you disagree with the Board of Review, you can appeal to the state Property Tax Appeal Board (PTAB) or to circuit court.
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Illinois Property Tax Exemptions
The General Homestead Exemption reduces the equalized assessed value of a primary residence and is larger in Cook County than in the rest of the state. Illinois also offers a Senior Citizens Homestead Exemption, a Senior Citizens Assessment Freeze for income-eligible seniors, and exemptions for homeowners with disabilities and veterans with disabilities. Apply through your county assessor's office, per the Illinois Department of Revenue.
Key Dates
Dates vary by county and, in Cook County, by township.
| Date | What Happens |
|---|---|
| January 1 | Property valued for the tax year |
| Varies by county or township | Assessment notices mailed or published |
| About 30 days after notices | Appeal deadline (Assessor in Cook; Board of Review elsewhere) |
| Following year | Tax bills mailed and paid, usually in two installments |