Illinois property taxes by county
Across Illinois, the median owner-occupied home pays $5,298 a year in real-estate taxes on a median home value of $263,300 — an effective property-tax rate of 2.012%. That ranks Illinois #2 of 51 states and the District of Columbia (1 = highest). This page carries all 102 Illinois county-equivalents in the Census data — 102 with a published effective rate — sortable by rate, taxes paid, home value, income, or five-year change. 16 of them also carry a full detail card here — every median with its Census margin of error, both rankings, the six nearest counties, and the five-year change. It also sets out how property tax actually works in Illinois: how property is assessed, which exemptions exist and who qualifies, the deadline and body for an appeal, and the payment schedule and penalties — each hand-sourced from official Illinois sources. Figures are U.S. Census Bureau ACS 2020-2024 5-year estimates.
- Effective tax rate
- 2.012%
- Median real-estate taxes
- $5,298 ± $22
- Median home value
- $263,300
- Median household income
- $83,390
- National rank
- #2 of 51
- County-equivalents
- 102
Median real-estate taxes ÷ median home value — a ratio of two independently-estimated medians, not a statutory (millage) rate.
How property tax varies across Illinois
Across Illinois's 102 county-equivalents with a published rate, the effective property-tax rate runs from 2.581% in Lake County down to 0.964% in Hardin County — a 2.7× spread inside a single state, which is why a statewide average tells a buyer very little.
Lake County carries both the state's highest effective rate (2.581%) and its largest median bill ($8,923) — an unusual alignment; in most states the two rank differently because home values vary more than rates do.
Measured against the national median effective rate of 0.937%, 102 of Illinois's 102 ranked counties sit above it and 0 below. Illinois as a whole ranks #2 of 51 (1 = highest).
Median home value statewide is $263,300, but within Illinois it ranges from $391,400 in DuPage County to $59,800 in Alexander County — the denominator of the effective rate, and the main reason two counties with similar bills can show very different rates.
Statewide, the median real-estate tax bill equals about 6.4% of median household income. That share is heaviest in DeKalb County (8.4%) and lightest in Hardin County (1.8%).
Comparing the non-overlapping Census periods 2015–2019 and 2020–2024, median real-estate taxes rose by a statistically significant amount in 86 of Illinois's 102 counties with a comparable trend, fell significantly in 0, and showed no statistically significant change in 16.
Estimate a Illinois property tax bill
A median-based estimate, not a quote, an assessment, or a tax bill — it cannot know your assessed value, exemptions, or special districts. How this is computed.
Every Illinois county
All 102 Illinois county-equivalents in the Census data (102 with a published effective rate). Click a column heading to sort. Counties in bold have a full detail card further down this page — margins of error, nearby counties, and their five-year trend.
| Lake County | 2.581% | $8,923 | $9,334 | $8,093 | $345,700 | $110,416 | 8.1% | #1 | #9 | +17.6% |
|---|---|---|---|---|---|---|---|---|---|---|
| DeKalb County | 2.452% | $5,974 | $6,144 | $5,601 | $243,600 | $70,724 | 8.4% | #2 | #17 | +19.5% |
| Stephenson County | 2.402% | $3,240 | $3,388 | $3,108 | $134,900 | $64,043 | 5.1% | #3 | #22 | +20.5% |
| Winnebago County | 2.389% | $3,930 | $4,182 | $3,562 | $164,500 | $65,837 | 6.0% | #4 | #23 | +10.9% |
| Kendall County | 2.373% | $7,651 | $7,800 | $7,144 | $322,400 | $111,601 | 6.9% | #5 | #24 | +13.4% |
| McHenry County | 2.361% | $7,274 | $7,467 | $6,870 | $308,100 | $104,802 | 6.9% | #6 | #26 | +13.4% |
| Rock Island County | 2.277% | $3,425 | $3,540 | $3,227 | $150,400 | $67,159 | 5.1% | #7 | #34 | +26% |
| Kane County | 2.257% | $7,382 | $7,753 | $6,609 | $327,000 | $103,163 | 7.2% | #8 | #38 | +17.4% |
| Will County | 2.244% | $7,173 | $7,370 | $6,698 | $319,600 | $109,984 | 6.5% | #9 | #41 | +18.1% |
| Peoria County | 2.241% | $3,552 | $3,862 | $3,109 | $158,500 | $65,108 | 5.5% | #10 | #42 | +14.8% |
| Kankakee County | 2.215% | $4,266 | $4,651 | $3,571 | $192,600 | $71,281 | 6.0% | #11 | #44 | +22.1% |
| Boone County | 2.183% | $4,735 | $4,815 | $4,428 | $216,900 | $84,571 | 5.6% | #12 | #49 | +20.5% |
| McLean County | 2.171% | $4,524 | $4,702 | $4,173 | $208,400 | $79,905 | 5.7% | #13 | #51 | +16% |
| Fulton County | 2.135% | $2,289 | $2,563 | $2,066 | $107,200 | $60,599 | 3.8% | #14 | #55 | +20.8% |
| Woodford County | 2.133% | $4,215 | $4,466 | $3,964 | $197,600 | $91,483 | 4.6% | #15 | #56 | +12.3% |
| McDonough County | 2.126% | $2,285 | $2,325 | $2,231 | $107,500 | $52,795 | 4.3% | #16 | #57 | +23.8% |
| Ford County | 2.120% | $2,587 | $2,801 | $2,334 | $122,000 | $62,439 | 4.1% | #17 | #59 | +16.2% |
| Macon County | 2.118% | $2,696 | $2,923 | $2,354 | $127,300 | $62,666 | 4.3% | #18 | #60 | +23% |
| LaSalle County | 2.111% | $3,418 | $3,753 | $2,950 | $161,900 | $73,045 | 4.7% | #19 | #61 | +20.2% |
| Tazewell County | 2.111% | $3,536 | $3,657 | $3,327 | $167,500 | $77,982 | 4.5% | #20 | #62 | +15.3% |
| Mason County | 2.091% | $2,162 | $2,255 | $2,099 | $103,400 | $62,845 | 3.4% | #21 | #65 | +18% |
| Champaign County | 2.058% | $4,353 | $4,501 | $4,108 | $211,500 | $63,683 | 6.8% | #22 | #68 | +20.7% |
| Ogle County | 2.055% | $3,889 | $4,032 | $3,660 | $189,200 | $82,132 | 4.7% | #23 | #69 | +23.3% |
| DuPage County | 2.046% | $8,007 | $8,170 | $7,688 | $391,400 | $112,096 | 7.1% | #24 | #72 | +18% |
| Livingston County | 2.045% | $2,908 | $3,144 | $2,674 | $142,200 | $73,790 | 3.9% | #25 | #73 | +11.8% |
| Whiteside County | 2.044% | $2,598 | $2,783 | $2,327 | $127,100 | $67,500 | 3.9% | #26 | #74 | +6.7% |
| St. Clair County | 2.033% | $3,665 | $4,189 | $2,871 | $180,300 | $73,854 | 5.0% | #27 | #76 | +27.8% |
| Cass County | 2.016% | $1,958 | $1,890 | $2,057 | $97,100 | $68,125 | 2.9% | #28 | #82 | +22.7% |
| Bureau County | 2.008% | $2,548 | $2,640 | $2,420 | $126,900 | $69,257 | 3.7% | #29 | #84 | +7.4% |
| Grundy County | 1.995% | $5,420 | $5,828 | $4,549 | $271,700 | $92,235 | 5.9% | #30 | #89 | +29.6% |
| Sangamon County | 1.992% | $3,512 | $3,786 | $3,121 | $176,300 | $75,357 | 4.7% | #31 | #91 | +22.4% |
| Carroll County | 1.989% | $2,277 | $2,369 | $2,199 | $114,500 | $60,758 | 3.8% | #33 | #93 | +12.2% |
| Henry County | 1.989% | $3,016 | $3,340 | $2,666 | $151,600 | $71,911 | 4.2% | #32 | #92 | +20.6% |
| Lee County | 1.972% | $3,048 | $3,162 | $2,916 | $154,600 | $70,292 | 4.3% | #34 | #96 | +19.5% |
| Mercer County | 1.962% | $2,878 | $3,144 | $2,476 | $146,700 | $74,182 | 3.9% | #35 | #97 | +25.2% |
| Knox County | 1.957% | $2,190 | $2,451 | $1,872 | $111,900 | $57,030 | 3.8% | #36 | #98 | +29.9% |
| Jasper County | 1.951% | $2,448 | $2,916 | $1,844 | $125,500 | $74,755 | 3.3% | #37 | #100 | +54.2% |
| Coles County | 1.942% | $2,474 | $2,795 | $2,120 | $127,400 | $56,478 | 4.4% | #38 | #102 | +18.8% |
| Marshall County | 1.937% | $2,766 | $2,763 | $2,772 | $142,800 | $71,585 | 3.9% | #39 | #104 | +13.5% |
| Madison County | 1.918% | $3,319 | $3,682 | $2,789 | $173,000 | $75,793 | 4.4% | #40 | #110 | +21.4% |
| Cook County | 1.908% | $6,191 | $6,502 | $5,638 | $324,500 | $83,498 | 7.4% | #41 | #113 | +19.8% |
| Bond County | 1.885% | $2,747 | $3,103 | $2,154 | $145,700 | $65,959 | 4.2% | #42 | #118 | +31.9% |
| Washington County | 1.868% | $2,908 | $3,353 | $2,500 | $155,700 | $78,224 | 3.7% | #43 | #123 | +22.2% |
| Jackson County | 1.840% | $2,526 | $3,050 | $2,015 | $137,300 | $48,763 | 5.2% | #44 | #131 | +15% |
| Clinton County | 1.832% | $3,524 | $3,816 | $3,076 | $192,400 | $86,588 | 4.1% | #45 | #132 | +21% |
| Iroquois County | 1.817% | $2,504 | $2,711 | $2,275 | $137,800 | $66,255 | 3.8% | #46 | #137 | +14.9% |
| Alexander County | 1.813% | $1,084 | $1,623 | $750 | $59,800 | $47,043 | 2.3% | #47 | #138 | +57.3% |
| Warren County | 1.812% | $1,903 | $1,825 | $2,056 | $105,000 | $67,385 | 2.8% | #48 | #139 | +16% |
| Hancock County | 1.809% | $2,059 | $2,123 | $2,007 | $113,800 | $65,865 | 3.1% | #49 | #144 | +30.4% |
| Piatt County | 1.808% | $3,265 | $3,459 | $2,848 | $180,600 | $94,811 | 3.4% | #50 | #146 | +30.8% |
| Vermilion County | 1.808% | $1,757 | $2,363 | $1,378 | $97,200 | $56,877 | 3.1% | #51 | #147 | +15.1% |
| Moultrie County | 1.801% | $2,414 | $2,689 | $2,092 | $134,000 | $71,784 | 3.4% | #52 | #148 | +2.7% |
| De Witt County | 1.782% | $2,322 | $2,583 | $1,959 | $130,300 | $71,678 | 3.2% | #53 | #156 | +23.9% |
| Schuyler County | 1.778% | $1,950 | $2,213 | $1,664 | $109,700 | $65,948 | 3.0% | #54 | #157 | +16.6% |
| Logan County | 1.775% | $2,385 | $2,320 | $2,511 | $134,400 | $66,358 | 3.6% | #55 | #158 | +22% |
| Morgan County | 1.763% | $2,306 | $2,344 | $2,270 | $130,800 | $66,306 | 3.5% | #56 | #164 | +7.2% |
| Jersey County | 1.757% | $3,020 | $3,337 | $2,676 | $171,900 | $80,361 | 3.8% | #57 | #166 | +11.4% |
| Greene County | 1.745% | $1,661 | $1,928 | $1,393 | $95,200 | $62,192 | 2.7% | #58 | #168 | +24.6% |
| Jo Daviess County | 1.721% | $3,613 | $3,799 | $3,381 | $209,900 | $73,993 | 4.9% | #59 | #181 | +23.6% |
| Menard County | 1.720% | $3,190 | $3,478 | $2,589 | $185,500 | $82,176 | 3.9% | #61 | #184 | +11.5% |
| Williamson County | 1.720% | $2,690 | $3,136 | $2,062 | $156,400 | $65,604 | 4.1% | #60 | #182 | +47.2% |
| Marion County | 1.708% | $1,759 | $2,264 | $1,331 | $103,000 | $61,240 | 2.9% | #62 | #187 | +19.6% |
| Jefferson County | 1.705% | $2,148 | $2,502 | $1,629 | $126,000 | $63,118 | 3.4% | #63 | #188 | +31.1% |
| Douglas County | 1.698% | $2,554 | $2,839 | $1,992 | $150,400 | $77,320 | 3.3% | #64 | #192 | +15.4% |
| Saline County | 1.694% | $1,597 | $2,139 | $1,308 | $94,300 | $53,117 | 3.0% | #65 | #196 | +32.9% |
| Stark County | 1.692% | $1,768 | $2,148 | $1,452 | $104,500 | $62,878 | 2.8% | #66 | #198 | +6.5% |
| Montgomery County | 1.680% | $1,887 | $2,136 | $1,634 | $112,300 | $63,620 | 3.0% | #67 | #202 | +27% |
| Christian County | 1.637% | $1,891 | $2,050 | $1,598 | $115,500 | $62,611 | 3.0% | #68 | #234 | +12.2% |
| Monroe County | 1.626% | $4,588 | $4,848 | $4,275 | $282,100 | $102,880 | 4.5% | #69 | #240 | +19.4% |
| Perry County | 1.605% | $1,807 | $1,958 | $1,679 | $112,600 | $62,118 | 2.9% | #70 | #256 | +19.7% |
| Cumberland County | 1.590% | $2,004 | $2,026 | $1,963 | $126,000 | $73,327 | 2.7% | #71 | #267 | +9% |
| Adams County | 1.582% | $2,573 | $2,689 | $2,433 | $162,600 | $66,220 | 3.9% | #72 | #272 | +19.3% |
| Henderson County | 1.581% | $1,651 | $1,860 | $1,480 | $104,400 | $62,227 | 2.6% | #73 | #273 | +15.8% |
| Richland County | 1.579% | $1,769 | $2,170 | $1,511 | $112,000 | $62,455 | 2.8% | #74 | #276 | +4.8% |
| Gallatin County | 1.574% | $1,305 | $1,312 | $1,295 | $82,900 | $59,219 | 2.2% | #75 | #281 | +43.2% |
| Franklin County | 1.566% | $1,394 | $1,716 | $1,166 | $89,000 | $56,740 | 2.5% | #77 | #289 | +12.2% |
| Putnam County | 1.566% | $2,705 | $2,871 | $2,572 | $172,700 | $75,590 | 3.6% | #76 | #288 | +27.2% |
| Clark County | 1.559% | $2,064 | $1,994 | $2,132 | $132,400 | $72,927 | 2.8% | #78 | #293 | +20% |
| Pike County | 1.535% | $1,556 | $1,724 | $1,433 | $101,400 | $59,777 | 2.6% | #79 | #307 | +2.8% |
| Brown County | 1.524% | $2,291 | $2,269 | $2,318 | $150,300 | $67,917 | 3.4% | #80 | #315 | +52.8% |
| Shelby County | 1.505% | $2,063 | $2,235 | $1,895 | $137,100 | $72,095 | 2.9% | #81 | #341 | +21.1% |
| Macoupin County | 1.500% | $2,073 | $2,199 | $1,953 | $138,200 | $70,805 | 2.9% | #82 | #345 | +24.4% |
| Scott County | 1.500% | $1,446 | $1,861 | $1,241 | $96,400 | $66,705 | 2.2% | #83 | #346 | +1.3% |
| Wayne County | 1.493% | $1,653 | $1,823 | $1,487 | $110,700 | $55,521 | 3.0% | #84 | #352 | +35.2% |
| Crawford County | 1.491% | $1,806 | $2,205 | $1,421 | $121,100 | $71,674 | 2.5% | #85 | #356 | +31.6% |
| Effingham County | 1.490% | $2,823 | $2,988 | $2,594 | $189,500 | $80,404 | 3.5% | #86 | #359 | +22.6% |
| Edwards County | 1.451% | $1,451 | $1,901 | $1,265 | $100,000 | $60,519 | 2.4% | #87 | #405 | +23.3% |
| Fayette County | 1.449% | $1,894 | $2,280 | $1,625 | $130,700 | $60,944 | 3.1% | #88 | #409 | +30.4% |
| Edgar County | 1.448% | $1,409 | $1,498 | $1,291 | $97,300 | $59,941 | 2.4% | #89 | #411 | +0.8% |
| Clay County | 1.429% | $1,392 | $1,792 | $839 | $97,400 | $60,417 | 2.3% | #90 | #434 | −3.7% |
| Randolph County | 1.426% | $1,927 | $2,300 | $1,518 | $135,100 | $68,131 | 2.8% | #91 | #438 | +20.1% |
| Wabash County | 1.406% | $1,475 | $1,831 | $1,212 | $104,900 | $57,086 | 2.6% | #92 | #463 | −1.3% |
| Massac County | 1.398% | $1,704 | $2,017 | $1,416 | $121,900 | $65,116 | 2.6% | #93 | #470 | +25.3% |
| Calhoun County | 1.385% | $2,644 | $3,213 | $2,395 | $190,900 | $93,203 | 2.8% | #94 | #482 | +24% |
| White County | 1.336% | $1,444 | $1,533 | $1,378 | $108,100 | $54,813 | 2.6% | #95 | #547 | +42.4% |
| Hamilton County | 1.330% | $1,512 | $2,056 | $1,260 | $113,700 | $65,746 | 2.3% | #96 | #552 | +18.5% |
| Union County | 1.300% | $1,712 | $2,273 | $1,246 | $131,700 | $55,728 | 3.1% | #97 | #597 | +3.7% |
| Johnson County | 1.241% | $1,992 | $3,120 | $1,608 | $160,500 | $62,528 | 3.2% | #98 | #683 | +23% |
| Lawrence County | 1.185% | $1,174 | $1,482 | $827 | $99,100 | $55,324 | 2.1% | #99 | #755 | +18% |
| Pope County | 1.027% | $1,477 | $1,651 | $1,330 | $143,800 | $60,050 | 2.5% | #100 | #1051 | +20.2% |
| Pulaski County | 1.021% | $869 | $1,342 | $531 | $85,100 | $42,463 | 2.0% | #101 | #1063 | +45.1% |
| Hardin County | 0.964% | $1,001 | $1,274 | $667 | $103,800 | $54,271 | 1.8% | #102 | #1214 | +40.4% |
Data: U.S. Census Bureau, American Community Survey (ACS) 2020-2024 5-year estimates — tables B25103 (real-estate taxes), B25077 (home value), B19013 (household income) — and the 2024 Census county gazetteer. Public domain (Title 17 U.S.C. §105).
County detail — 16 Illinois counties in depth
Full figures for the Illinois counties most searched for, each with the Census margin of error on every median, both rankings, the five-year change, and the six nearest county-equivalents by centroid distance — nearby, not necessarily bordering, and cross-state neighbours included. For any individual property's assessed value, exemptions and bill, use that county's own assessor or appraisal district; per-county assessor URLs are never guessed here (why).
Lake County 2.581% · median tax $8,923 · #9 nationally
- Median taxes — all owner-occupied
- $8,923 ± $108
- With a mortgage
- $9,334 ± $147
- Without a mortgage
- $8,093 ± $215
- Median home value
- $345,700 ± $3,502
- Median household income
- $110,416 ± $1,747
- Taxes as share of income
- 8.1%
- Effective rate
- 2.581%
- Rank in Illinois
- #1 of 102
- National rank
- #9 of 3,135
- Estimated tax on a $345,000 home
- $8,904
Median real-estate taxes rose 17.6% over five years ($7,587 → $8,923) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.281 percentage points (2.862% → 2.581%), a change that is itself statistically significant at 90% confidence. Median home value moved $265,100 → $345,700 (+30.4%), and the rate changed −0.281 percentage points.
Nearest counties to Lake County:
- Cook County, IL — 1.908%, median tax $6,191, 35 km away
- DuPage County, IL — 2.046%, median tax $8,007, 44 km away
- Kenosha County, WI — 1.574%, median tax $4,179, 45 km away
- McHenry County, IL — 2.361%, median tax $7,274, 55 km away
- Kane County, IL — 2.257%, median tax $7,382, 58 km away
- Racine County, WI — 1.630%, median tax $4,099, 66 km away
Winnebago County 2.389% · median tax $3,930 · #23 nationally
- Median taxes — all owner-occupied
- $3,930 ± $79
- With a mortgage
- $4,182 ± $109
- Without a mortgage
- $3,562 ± $118
- Median home value
- $164,500 ± $2,551
- Median household income
- $65,837 ± $1,162
- Taxes as share of income
- 6.0%
- Effective rate
- 2.389%
- Rank in Illinois
- #4 of 102
- National rank
- #23 of 3,135
- Estimated tax on a $165,000 home
- $3,942
Median real-estate taxes rose 10.9% over five years ($3,544 → $3,930) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.554 percentage points (2.944% → 2.389%), a change that is itself statistically significant at 90% confidence. Median home value moved $120,400 → $164,500 (+36.6%), and the rate changed −0.554 percentage points.
Nearest counties to Winnebago County:
- Boone County, IL — 2.183%, median tax $4,735, 28 km away
- Ogle County, IL — 2.055%, median tax $3,889, 35 km away
- Rock County, WI — 1.599%, median tax $3,703, 38 km away
- Stephenson County, IL — 2.402%, median tax $3,240, 42 km away
- Green County, WI — 1.600%, median tax $4,003, 52 km away
- McHenry County, IL — 2.361%, median tax $7,274, 58 km away
Kendall County 2.373% · median tax $7,651 · #24 nationally
- Median taxes — all owner-occupied
- $7,651 ± $221
- With a mortgage
- $7,800 ± $261
- Without a mortgage
- $7,144 ± $373
- Median home value
- $322,400 ± $5,720
- Median household income
- $111,601 ± $3,257
- Taxes as share of income
- 6.9%
- Effective rate
- 2.373%
- Rank in Illinois
- #5 of 102
- National rank
- #24 of 3,135
- Estimated tax on a $320,000 home
- $7,594
Median real-estate taxes rose 13.4% over five years ($6,749 → $7,651) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.491 percentage points (2.865% → 2.373%), a change that is itself statistically significant at 90% confidence. Median home value moved $235,600 → $322,400 (+36.8%), and the rate changed −0.491 percentage points.
Nearest counties to Kendall County:
- Grundy County, IL — 1.995%, median tax $5,420, 33 km away
- Kane County, IL — 2.257%, median tax $7,382, 39 km away
- Will County, IL — 2.244%, median tax $7,173, 41 km away
- DuPage County, IL — 2.046%, median tax $8,007, 41 km away
- DeKalb County, IL — 2.452%, median tax $5,974, 44 km away
- LaSalle County, IL — 2.111%, median tax $3,418, 47 km away
McHenry County 2.361% · median tax $7,274 · #26 nationally
- Median taxes — all owner-occupied
- $7,274 ± $94
- With a mortgage
- $7,467 ± $118
- Without a mortgage
- $6,870 ± $174
- Median home value
- $308,100 ± $3,743
- Median household income
- $104,802 ± $2,178
- Taxes as share of income
- 6.9%
- Effective rate
- 2.361%
- Rank in Illinois
- #6 of 102
- National rank
- #26 of 3,135
- Estimated tax on a $310,000 home
- $7,319
Median real-estate taxes rose 13.4% over five years ($6,416 → $7,274) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.497 percentage points (2.858% → 2.361%), a change that is itself statistically significant at 90% confidence. Median home value moved $224,500 → $308,100 (+37.2%), and the rate changed −0.497 percentage points.
Nearest counties to McHenry County:
- Boone County, IL — 2.183%, median tax $4,735, 31 km away
- Walworth County, WI — 1.333%, median tax $4,036, 39 km away
- Kane County, IL — 2.257%, median tax $7,382, 43 km away
- DeKalb County, IL — 2.452%, median tax $5,974, 55 km away
- Kenosha County, WI — 1.574%, median tax $4,179, 55 km away
- Lake County, IL — 2.581%, median tax $8,923, 55 km away
Kane County 2.257% · median tax $7,382 · #38 nationally
- Median taxes — all owner-occupied
- $7,382 ± $103
- With a mortgage
- $7,753 ± $120
- Without a mortgage
- $6,609 ± $190
- Median home value
- $327,000 ± $4,132
- Median household income
- $103,163 ± $2,082
- Taxes as share of income
- 7.2%
- Effective rate
- 2.257%
- Rank in Illinois
- #8 of 102
- National rank
- #38 of 3,135
- Estimated tax on a $325,000 home
- $7,335
Median real-estate taxes rose 17.4% over five years ($6,286 → $7,382) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.38 percentage points (2.638% → 2.257%), a change that is itself statistically significant at 90% confidence. Median home value moved $238,300 → $327,000 (+37.2%), and the rate changed −0.38 percentage points.
Nearest counties to Kane County:
- DeKalb County, IL — 2.452%, median tax $5,974, 29 km away
- DuPage County, IL — 2.046%, median tax $8,007, 30 km away
- Kendall County, IL — 2.373%, median tax $7,651, 39 km away
- McHenry County, IL — 2.361%, median tax $7,274, 43 km away
- Boone County, IL — 2.183%, median tax $4,735, 53 km away
- Lake County, IL — 2.581%, median tax $8,923, 58 km away
Will County 2.244% · median tax $7,173 · #41 nationally
- Median taxes — all owner-occupied
- $7,173 ± $64
- With a mortgage
- $7,370 ± $81
- Without a mortgage
- $6,698 ± $110
- Median home value
- $319,600 ± $3,152
- Median household income
- $109,984 ± $1,819
- Taxes as share of income
- 6.5%
- Effective rate
- 2.244%
- Rank in Illinois
- #9 of 102
- National rank
- #41 of 3,135
- Estimated tax on a $320,000 home
- $7,181
Median real-estate taxes rose 18.1% over five years ($6,073 → $7,173) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.373 percentage points (2.618% → 2.244%), a change that is itself statistically significant at 90% confidence. Median home value moved $232,000 → $319,600 (+37.8%), and the rate changed −0.373 percentage points.
Nearest counties to Will County:
- Kankakee County, IL — 2.215%, median tax $4,266, 36 km away
- Grundy County, IL — 1.995%, median tax $5,420, 39 km away
- Kendall County, IL — 2.373%, median tax $7,651, 41 km away
- DuPage County, IL — 2.046%, median tax $8,007, 46 km away
- Lake County, IN — 0.916%, median tax $2,112, 50 km away
- Cook County, IL — 1.908%, median tax $6,191, 57 km away
Peoria County 2.241% · median tax $3,552 · #42 nationally
- Median taxes — all owner-occupied
- $3,552 ± $108
- With a mortgage
- $3,862 ± $159
- Without a mortgage
- $3,109 ± $173
- Median home value
- $158,500 ± $2,588
- Median household income
- $65,108 ± $1,355
- Taxes as share of income
- 5.5%
- Effective rate
- 2.241%
- Rank in Illinois
- #10 of 102
- National rank
- #42 of 3,135
- Estimated tax on a $160,000 home
- $3,586
Median real-estate taxes rose 14.8% over five years ($3,094 → $3,552) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.143 percentage points (2.384% → 2.241%), a change that is itself statistically significant at 90% confidence. Median home value moved $129,800 → $158,500 (+22.1%), and the rate changed −0.143 percentage points.
Nearest counties to Peoria County:
- Stark County, IL — 1.692%, median tax $1,768, 35 km away
- Tazewell County, IL — 2.111%, median tax $3,536, 37 km away
- Knox County, IL — 1.957%, median tax $2,190, 41 km away
- Marshall County, IL — 1.937%, median tax $2,766, 45 km away
- Woodford County, IL — 2.133%, median tax $4,215, 47 km away
- Fulton County, IL — 2.135%, median tax $2,289, 51 km away
McLean County 2.171% · median tax $4,524 · #51 nationally
- Median taxes — all owner-occupied
- $4,524 ± $74
- With a mortgage
- $4,702 ± $96
- Without a mortgage
- $4,173 ± $152
- Median home value
- $208,400 ± $3,688
- Median household income
- $79,905 ± $2,544
- Taxes as share of income
- 5.7%
- Effective rate
- 2.171%
- Rank in Illinois
- #13 of 102
- National rank
- #51 of 3,135
- Estimated tax on a $210,000 home
- $4,559
Median real-estate taxes rose 16% over five years ($3,899 → $4,524) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.164 percentage points (2.335% → 2.171%), a change that is itself statistically significant at 90% confidence. Median home value moved $167,000 → $208,400 (+24.8%), and the rate changed −0.164 percentage points.
Nearest counties to McLean County:
- De Witt County, IL — 1.782%, median tax $2,322, 35 km away
- Woodford County, IL — 2.133%, median tax $4,215, 45 km away
- Livingston County, IL — 2.045%, median tax $2,908, 51 km away
- Ford County, IL — 2.120%, median tax $2,587, 54 km away
- Tazewell County, IL — 2.111%, median tax $3,536, 57 km away
- Piatt County, IL — 1.808%, median tax $3,265, 58 km away
Macon County 2.118% · median tax $2,696 · #60 nationally
- Median taxes — all owner-occupied
- $2,696 ± $86
- With a mortgage
- $2,923 ± $113
- Without a mortgage
- $2,354 ± $162
- Median home value
- $127,300 ± $4,307
- Median household income
- $62,666 ± $2,127
- Taxes as share of income
- 4.3%
- Effective rate
- 2.118%
- Rank in Illinois
- #18 of 102
- National rank
- #60 of 3,135
- Estimated tax on a $125,000 home
- $2,648
Median real-estate taxes rose 23% over five years ($2,191 → $2,696) — a statistically significant increase at 90% confidence. The change in the effective tax rate (2.227% → 2.118%) is not statistically significant at 90% confidence. Median home value moved $98,400 → $127,300 (+29.4%), and the rate changed −0.109 percentage points.
Nearest counties to Macon County:
- Piatt County, IL — 1.808%, median tax $3,265, 36 km away
- De Witt County, IL — 1.782%, median tax $2,322, 36 km away
- Moultrie County, IL — 1.801%, median tax $2,414, 38 km away
- Christian County, IL — 1.637%, median tax $1,891, 44 km away
- Logan County, IL — 1.775%, median tax $2,385, 46 km away
- Shelby County, IL — 1.505%, median tax $2,063, 55 km away
LaSalle County 2.111% · median tax $3,418 · #61 nationally
- Median taxes — all owner-occupied
- $3,418 ± $90
- With a mortgage
- $3,753 ± $115
- Without a mortgage
- $2,950 ± $159
- Median home value
- $161,900 ± $2,651
- Median household income
- $73,045 ± $2,890
- Taxes as share of income
- 4.7%
- Effective rate
- 2.111%
- Rank in Illinois
- #19 of 102
- National rank
- #61 of 3,135
- Estimated tax on a $160,000 home
- $3,378
Median real-estate taxes rose 20.2% over five years ($2,844 → $3,418) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.125 percentage points (2.236% → 2.111%), a change that is itself statistically significant at 90% confidence. Median home value moved $127,200 → $161,900 (+27.3%), and the rate changed −0.125 percentage points.
Nearest counties to LaSalle County:
- Putnam County, IL — 1.566%, median tax $2,705, 38 km away
- Grundy County, IL — 1.995%, median tax $5,420, 41 km away
- Kendall County, IL — 2.373%, median tax $7,651, 47 km away
- Marshall County, IL — 1.937%, median tax $2,766, 52 km away
- Bureau County, IL — 2.008%, median tax $2,548, 54 km away
- Lee County, IL — 1.972%, median tax $3,048, 57 km away
Tazewell County 2.111% · median tax $3,536 · #62 nationally
- Median taxes — all owner-occupied
- $3,536 ± $72
- With a mortgage
- $3,657 ± $101
- Without a mortgage
- $3,327 ± $164
- Median home value
- $167,500 ± $2,913
- Median household income
- $77,982 ± $1,962
- Taxes as share of income
- 4.5%
- Effective rate
- 2.111%
- Rank in Illinois
- #20 of 102
- National rank
- #62 of 3,135
- Estimated tax on a $170,000 home
- $3,589
Median real-estate taxes rose 15.3% over five years ($3,066 → $3,536) — a statistically significant increase at 90% confidence. The change in the effective tax rate (2.159% → 2.111%) is not statistically significant at 90% confidence. Median home value moved $142,000 → $167,500 (+18%), and the rate changed −0.048 percentage points.
Nearest counties to Tazewell County:
- Peoria County, IL — 2.241%, median tax $3,552, 37 km away
- Woodford County, IL — 2.133%, median tax $4,215, 41 km away
- Logan County, IL — 1.775%, median tax $2,385, 44 km away
- Mason County, IL — 2.091%, median tax $2,162, 45 km away
- McLean County, IL — 2.171%, median tax $4,524, 57 km away
- Fulton County, IL — 2.135%, median tax $2,289, 58 km away
DuPage County 2.046% · median tax $8,007 · #72 nationally
- Median taxes — all owner-occupied
- $8,007 ± $58
- With a mortgage
- $8,170 ± $74
- Without a mortgage
- $7,688 ± $107
- Median home value
- $391,400 ± $2,511
- Median household income
- $112,096 ± $1,607
- Taxes as share of income
- 7.1%
- Effective rate
- 2.046%
- Rank in Illinois
- #24 of 102
- National rank
- #72 of 3,135
- Estimated tax on a $390,000 home
- $7,979
Median real-estate taxes rose 18% over five years ($6,783 → $8,007) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.153 percentage points (2.199% → 2.046%), a change that is itself statistically significant at 90% confidence. Median home value moved $308,500 → $391,400 (+26.9%), and the rate changed −0.153 percentage points.
Nearest counties to DuPage County:
- Kane County, IL — 2.257%, median tax $7,382, 30 km away
- Cook County, IL — 1.908%, median tax $6,191, 37 km away
- Kendall County, IL — 2.373%, median tax $7,651, 41 km away
- Lake County, IL — 2.581%, median tax $8,923, 44 km away
- Will County, IL — 2.244%, median tax $7,173, 46 km away
- DeKalb County, IL — 2.452%, median tax $5,974, 57 km away
St. Clair County 2.033% · median tax $3,665 · #76 nationally
- Median taxes — all owner-occupied
- $3,665 ± $90
- With a mortgage
- $4,189 ± $119
- Without a mortgage
- $2,871 ± $151
- Median home value
- $180,300 ± $5,056
- Median household income
- $73,854 ± $1,990
- Taxes as share of income
- 5.0%
- Effective rate
- 2.033%
- Rank in Illinois
- #27 of 102
- National rank
- #76 of 3,135
- Estimated tax on a $180,000 home
- $3,659
Median real-estate taxes rose 27.8% over five years ($2,868 → $3,665) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.208 percentage points (2.241% → 2.033%), a change that is itself statistically significant at 90% confidence. Median home value moved $128,000 → $180,300 (+40.9%), and the rate changed −0.208 percentage points.
Nearest counties to St. Clair County:
- Monroe County, IL — 1.626%, median tax $4,588, 31 km away
- St. Louis city, MO — 1.029%, median tax $2,033, 33 km away
- Madison County, IL — 1.918%, median tax $3,319, 40 km away
- Clinton County, IL — 1.832%, median tax $3,524, 46 km away
- Washington County, IL — 1.868%, median tax $2,908, 46 km away
- Randolph County, IL — 1.426%, median tax $1,927, 47 km away
Sangamon County 1.992% · median tax $3,512 · #91 nationally
- Median taxes — all owner-occupied
- $3,512 ± $86
- With a mortgage
- $3,786 ± $127
- Without a mortgage
- $3,121 ± $126
- Median home value
- $176,300 ± $4,624
- Median household income
- $75,357 ± $1,749
- Taxes as share of income
- 4.7%
- Effective rate
- 1.992%
- Rank in Illinois
- #31 of 102
- National rank
- #91 of 3,135
- Estimated tax on a $175,000 home
- $3,486
Median real-estate taxes rose 22.4% over five years ($2,869 → $3,512) — a statistically significant increase at 90% confidence. The change in the effective tax rate (2.032% → 1.992%) is not statistically significant at 90% confidence. Median home value moved $141,200 → $176,300 (+24.9%), and the rate changed −0.04 percentage points.
Nearest counties to Sangamon County:
- Menard County, IL — 1.720%, median tax $3,190, 32 km away
- Christian County, IL — 1.637%, median tax $1,891, 40 km away
- Morgan County, IL — 1.763%, median tax $2,306, 47 km away
- Logan County, IL — 1.775%, median tax $2,385, 49 km away
- Cass County, IL — 2.016%, median tax $1,958, 55 km away
- Mason County, IL — 2.091%, median tax $2,162, 58 km away
Madison County 1.918% · median tax $3,319 · #110 nationally
- Median taxes — all owner-occupied
- $3,319 ± $80
- With a mortgage
- $3,682 ± $106
- Without a mortgage
- $2,789 ± $112
- Median home value
- $173,000 ± $2,415
- Median household income
- $75,793 ± $1,799
- Taxes as share of income
- 4.4%
- Effective rate
- 1.918%
- Rank in Illinois
- #40 of 102
- National rank
- #110 of 3,135
- Estimated tax on a $175,000 home
- $3,357
Median real-estate taxes rose 21.4% over five years ($2,734 → $3,319) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.098 percentage points (2.016% → 1.918%), a change that is itself statistically significant at 90% confidence. Median home value moved $135,600 → $173,000 (+27.6%), and the rate changed −0.098 percentage points.
Nearest counties to Madison County:
- St. Louis city, MO — 1.029%, median tax $2,033, 37 km away
- St. Clair County, IL — 2.033%, median tax $3,665, 40 km away
- Bond County, IL — 1.885%, median tax $2,747, 41 km away
- Clinton County, IL — 1.832%, median tax $3,524, 48 km away
- Jersey County, IL — 1.757%, median tax $3,020, 49 km away
- Macoupin County, IL — 1.500%, median tax $2,073, 49 km away
Cook County 1.908% · median tax $6,191 · #113 nationally
- Median taxes — all owner-occupied
- $6,191 ± $30
- With a mortgage
- $6,502 ± $41
- Without a mortgage
- $5,638 ± $66
- Median home value
- $324,500 ± $1,460
- Median household income
- $83,498 ± $630
- Taxes as share of income
- 7.4%
- Effective rate
- 1.908%
- Rank in Illinois
- #41 of 102
- National rank
- #113 of 3,135
- Estimated tax on a $325,000 home
- $6,201
Median real-estate taxes rose 19.8% over five years ($5,168 → $6,191) — a statistically significant increase at 90% confidence. The effective tax rate fell 0.188 percentage points (2.096% → 1.908%), a change that is itself statistically significant at 90% confidence. Median home value moved $246,600 → $324,500 (+31.6%), and the rate changed −0.188 percentage points.
Nearest counties to Cook County:
- Lake County, IL — 2.581%, median tax $8,923, 35 km away
- DuPage County, IL — 2.046%, median tax $8,007, 37 km away
- Lake County, IN — 0.916%, median tax $2,112, 52 km away
- Will County, IL — 2.244%, median tax $7,173, 57 km away
- Porter County, IN — 0.826%, median tax $2,326, 64 km away
- Kane County, IL — 2.257%, median tax $7,382, 65 km away
Comparing the non-overlapping Census periods 2015-2019 and 2020-2024 — consecutive 5-year estimates share survey sample and are never compared here.
How property tax works in Illinois
Assessment, exemptions, appeals and payment are set by Illinois law and practice, so they apply to every county in the table above. Each fact is taken from an official government source and linked to it.
- How property is assessed
- Most real property is assessed at 33⅓% of market value and reassessed once every 4 years (3 years in Cook County) by the local township or county assessor; farmland is reassessed annually at use value. Illinois has no state property tax. source →
- Exemptions & credits
- General Homestead Exemption (up to $10,000 EAV in Cook County), Senior Citizens Homestead Exemption, a Low-Income Senior Assessment Freeze, exemptions for persons and veterans with disabilities, a Returning Veterans' Exemption, plus farmland use-value assessment and a senior tax-deferral program. source →
- Appealing an assessment
- File a written complaint with the county Board of Review (deadlines set locally); if unsatisfied, appeal in writing to the State Property Tax Appeal Board within 30 days of the board's decision notice, or pay under protest in circuit court — only one path is allowed, and once the tax bill arrives it is generally too late to appeal that year. source →
- Payment schedule & penalties
- Taxes are typically paid in two installments, usually due June 1 and September 1 (accelerated-billing counties, including Cook, use earlier dates); a four-payment option is also allowed. Late payment draws 1.5% interest per month or part-month. source →
- Why rates vary within the state
- The rate on a bill is the sum of overlapping taxing districts' individual levies (county, township, school district, community college, city, and special districts), and "home rule" municipalities aren't subject to statutory rate limits — both are real sources of cross-county variation. source →
Hand-sourced from official government sources — not a substitute for your own assessor's notice, and not legal or tax advice. Where a fact isn't confirmed on an official source, it is left off rather than guessed, which is why some states show fewer rows than others.
Frequently asked questions
- What is the average property tax rate in Illinois?
- Statewide, Illinois's effective property-tax rate is 2.012% — the state median real-estate taxes ($5,298) divided by the state median home value ($263,300), from the Census ACS 2020-2024 5-year estimates. The national figure is about 0.937%, which puts Illinois at #2 of 51 (1 = highest). Individual counties vary widely; the table above shows every one.
- Which Illinois county has the highest property taxes?
- By effective rate, Lake County is highest in Illinois at 2.581% (median bill $8,923), and Hardin County is lowest at 0.964% (median bill $1,001). Ranked by dollars paid rather than rate the order changes, because home values differ so much across the state — the table above shows both columns and sorts on either.
- What property tax exemptions are available in Illinois?
- General Homestead Exemption (up to $10,000 EAV in Cook County), Senior Citizens Homestead Exemption, a Low-Income Senior Assessment Freeze, exemptions for persons and veterans with disabilities, a Returning Veterans' Exemption, plus farmland use-value assessment and a senior tax-deferral program. Eligibility and filing are handled by your county assessor, and the exemption you qualify for changes your bill far more than the county you are in — the rates above are county medians and do not account for any exemption.
- How do I appeal a property tax assessment in Illinois?
- File a written complaint with the county Board of Review (deadlines set locally); if unsatisfied, appeal in writing to the State Property Tax Appeal Board within 30 days of the board's decision notice, or pay under protest in circuit court — only one path is allowed, and once the tax bill arrives it is generally too late to appeal that year. Missing the deadline usually means waiting a full year, so check the date on your own assessment notice rather than relying on a general figure.
- When are property taxes due in Illinois?
- Taxes are typically paid in two installments, usually due June 1 and September 1 (accelerated-billing counties, including Cook, use earlier dates); a four-payment option is also allowed. Late payment draws 1.5% interest per month or part-month. If your taxes are paid through a mortgage escrow account, your servicer pays on this schedule on your behalf.
- How is property assessed in Illinois?
- Most real property is assessed at 33⅓% of market value and reassessed once every 4 years (3 years in Cook County) by the local township or county assessor; farmland is reassessed annually at use value. Illinois has no state property tax. This is why an effective rate computed from market value — as every rate on this page is — will not match the millage rate printed on your bill: the two are applied to different bases.
Compare & explore
See the national highest and lowest property-tax rates, or read the methodology behind every figure. The national median effective rate is 0.937%; Illinois's statewide figure is 2.012%.