Cook County, Illinois
Property Taxes

The average property tax rate in Cook County, Illinois is 1.91%. On the county's median home value of $324,500, that works out to $6,191 per year in property taxes, the 73rd highest bill of all 3,211 counties nationally. The next deadline to protest your Cook County property tax assessment is set township by township, on a rolling schedule.

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A house in Cook County, Illinois
Median tax bill
$6,191
+2.3% year over year

Cook County, Illinois Property Tax Calculator

$50,000$1,500,000
Cook County median$324,500
Illinois median$263,300
U.S. median$332,700
Estimated Property Tax Bill
$6,191/yr
$516/mo
Home value$324,500
Effective Tax Rate1.91%
vs. county median bill$0
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How the Calculator Works

This Cook County, IL property tax calculator estimates your bill the same way the Cook County Assessor's Office does: your home's value multiplied by the local effective tax rate. The Cook County effective property tax rate is 1.91%, compared with the Illinois average of 2.01% and the U.S. average of 0.94%. On the county's median home value of $324,500, that works out to roughly $6,191 a year in Cook County property taxes. Use the estimate above as a starting point, then check the protest playbook below if your county's assessed value looks higher than your calculator estimate suggests it should.

Lower Your Cook County, Illinois Property Taxes

  1. Illustration of a mailbox receiving a tax notice

    Step 1: Check
    Your Timeline

    In Cook County, your assessment notice arrives in your township's reassessment year, and the deadline to appeal it is . It is free to file!

    Notice arrives
    your township's reassessment year
    Appeal deadline
    Filing fee
    free
  2. Illustration of a magnifying glass comparing three neighboring homes

    Step 2: Gather
    Your Evidence

    To file a strong appeal in Cook County, you need proof. Gather these four things before you begin to file.

    • Look up your current assessed property value
    • Research recent sales of similar properties in your area
    • Download the required form:
      Apply for an Appeal Online (Assessor); Submit an Appeal (Board of Review)
    • Take photos of any property issues that affect value
  3. Illustration of a completed protest form

    Step 3: Submit
    Your Appeal

    Appeals in Cook County are filed with the Cook County Assessor. View filing instructions

    File with
    Cook County Assessor (first level); Cook County Board of Review (second level); PTAB/Circuit Court beyond
    Appeal form
    Apply for an Appeal Online (Assessor); Submit an Appeal (Board of Review)
Doing it yourself compared with Abode handling your protest
 Doing it yourselfWith Abode
CostFree$99/yr flat
Time investment6-10 hrs (research + filing)3 min (enrollment only)
Comparable salesYou pull the sales yourselfAutomated comp analysis included
Evidence formattingYou gather and format itProfessional evidence packet included
Filing processYou file the Apply for an Appeal Online (Assessor); Submit an Appeal (Board of Review) yourselfWe file it for you
Hearing preparationYou appear before the review boardConsultant appears on your behalf
Success rate40-60%88%

Lower your property tax in minutes with Abode Money

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Cook County, Illinois Property Tax Rate

The typical Cook County homeowner pays an effective rate of 1.91% of market value each year, below the Illinois median of 2.01% and well above the U.S. median of 0.94%. By city the median rate runs from 1.48% in Chicago to 4.00% in Park Forest. The table lists the 25th, median, and 75th percentile effective rate for all 136 Cook County cities.

Cook County
1.91%
median effective rate
Illinois median
2.01%
median effective rate
U.S. median
0.94%
median effective rate
All 136 Cook County cities
25th percentile, median, and 75th percentile effective tax rate for every City
City25th percentileMedian75th percentile
Alsip2.12%2.34%2.51%
Arlington Heights1.89%2.11%2.33%
Bartlett2.23%2.43%2.61%
Bedford Park2.17%2.35%2.57%
Bellwood2.40%2.55%2.72%
Bensenville2.15%2.31%2.51%
Berkeley2.32%2.52%2.66%
Berwyn2.09%2.27%2.43%
Blue Island2.33%2.55%2.77%
Bridgeview2.21%2.46%2.67%

A dash means the Census withholds a figure this rate is worked out from: it does not publish a bill above $10,001 or a home value above $2,000,001. The 25th and 75th percentile rates are an Abode Money estimate, modelled from each city’s own home-value quartiles. The median is the city’s published effective rate.

Showing 1–10 of 136 Cook County cities

Cook County, Illinois Property Tax Bill

On a median home value of $324,500, the typical Cook County tax bill comes to $6,191 a year, above the Illinois median of $5,298 and well above the U.S. median of $3,119. Bills scale with value, so they track the map of where the expensive homes are. By city the median bill runs from $1,741 in Phoenix to $9,686 in Olympia Fields. Search all 136 Cook County cities below to compare the 25th, median, and 75th percentile bill.

Cook County
$6,191
median tax bill
Illinois median
$5,298
median tax bill
U.S. median
$3,119
median tax bill
All 136 Cook County cities
25th percentile, median, and 75th percentile annual property tax bill for every City
City25th percentileMedian75th percentile
Alsip$3,974$5,257$6,505
Arlington Heights$6,297$8,759$11,703
Bartlett$7,071$9,136$11,295
Bedford Park$5,045$6,373$8,334
Bellwood$4,904$5,866$7,052
Bensenville$5,073$6,283$7,997
Berkeley$4,903$6,224$7,273
Berwyn$5,370$6,805$8,353
Blue Island$3,511$4,550$5,836
Bridgeview$4,231$5,808$7,390

A dash means the Census withholds that bill. It does not publish a bill above $10,001.

Showing 1–10 of 136 Cook County cities

Cook County, Illinois Home Values

The median Cook County home is worth $324,500, the value your tax bill is calculated from, versus an Illinois median of $263,300 and a U.S. median of $332,700. Values range widely, with the middle half of Cook County homes between $213,400 and $474,300. By city the median value runs from $66,300 in Ford Heights to $1,560,300 in Kenilworth. The table lists the 25th, median, and 75th percentile value for all 136 cities.

Cook County
$324,500
median home value
Illinois median
$263,300
median home value
U.S. median
$332,700
median home value
All 136 Cook County cities
25th percentile, median, and 75th percentile home value for every City
City25th percentileMedian75th percentile
Alsip$170,100$225,000$278,400
Arlington Heights$298,000$414,500$553,800
Barrington$419,500$582,500$733,800
Barrington Hills$675,500$913,600$1,518,400
Bartlett$290,800$375,700$464,500
Bedford Park$215,100$271,700$355,300
Bellwood$192,300$230,000$276,500
Bensenville$219,600$272,000$346,200
Berkeley$194,500$246,900$288,500
Berwyn$236,600$299,800$368,000

A dash means the Census withholds that value. It does not publish a home value above $2,000,001.

Showing 1–10 of 136 Cook County cities

Cook County, Illinois Property Tax History

Effective tax rate, median annual bill, and median home value in Cook County, tracked year by year. Across the published years the median annual bill rose 15.9%, the median home value rose 27.0%, and the effective tax rate fell 8.7%.

Cook County, Illinois Property Tax Rate
Effective tax rate
1.80%1.90%2.00%2.10%2020: 2.09%2021: 2.10%2022: 2.02%2023: 1.98%2024: 1.91%2025: 1.86% (Abode prediction)2026: 1.82% (Abode prediction)2020202120222023202420252026TAX YEAREFFECTIVE TAX RATE
Cook County, Illinois Property Tax Bill
Median annual bill
$5,000$5,500$6,000$6,500$7,0002020: $5,3422021: $5,5932022: $5,9412023: $6,0532024: $6,1912025: $6,424 (Abode prediction)2026: $6,665 (Abode prediction)2020202120222023202420252026TAX YEARMEDIAN ANNUAL BILL
Cook County, Illinois Home Values
Median home value
$250,000$300,000$350,000$400,0002020: $255,5002021: $266,8002022: $293,7002023: $305,2002024: $324,5002025: $344,485 (Abode prediction)2026: $365,701 (Abode prediction)2020202120222023202420252026TAX YEARMEDIAN HOME VALUE

Solid years are published figures. Dashed years are Abode predictions, from each county's own past trend.

Cook County, Illinois Property Tax History by Year
Effective rate, median bill, and median home value
Cook County, Illinois Property Tax History by Year, by tax year with year-over-year change
Tax yearEffective rateRate changeMedian billBill changeMedian home valueValue change
20202.09%-$5,342-$255,500-
20212.10%+0.26%$5,593+4.70%$266,800+4.42%
20222.02%-3.51%$5,941+6.22%$293,700+10.08%
20231.98%-1.95%$6,053+1.89%$305,200+3.92%
20241.91%-3.80%$6,191+2.28%$324,500+6.32%
2025(predicted)1.86%-2.26%$6,424+3.76%$344,485+6.16%
2026(predicted)1.82%-2.26%$6,665+3.75%$365,701+6.16%

Cook County, Illinois vs. Nearby Counties

Thinking of moving? Run the tax math first. Of the five counties bordering Cook County, none taxes the same home for less. Move a $324,500 home into DuPage County, the cheapest neighbor, and the bill still rises $447 a year, while Lake County, the most expensive, costs $2,185 more. Bordering effective rates run from 2.05% to 2.58% against Cook County’s 1.91%. None of the five largest Illinois metro counties taxes the same home for less: Cook has the lowest effective rate of the group. The widest gap across the county line is $1,738 a year.

$50,000$1,500,000

Cook County vs. Its Neighboring Counties

Effective rate, median bill, and the tax on the same $324,500 home · Cook County and its five bordering counties

Effective tax rate, median bill, and the tax on a $324,500 home in Cook County and each bordering county
CountyEffective rateTheir median billSame home herevs. Cook
Cook CountyCook1.91%$6,191$6,191-
DuPage County2.05%$8,007$6,638+$447/yr
Kane County2.26%$7,382$7,326+$1,135/yr
Lake County2.58%$8,923$8,376+$2,185/yr
McHenry County2.36%$7,274$7,661+$1,470/yr
Will County2.24%$7,173$7,283+$1,092/yr

Cook County vs. the Big Illinois Metros

Effective rate, median bill, and the tax on the same $324,500 home · Illinois’s five largest metro counties

Effective tax rate, median bill, and the tax on a $324,500 home across the five largest Illinois metro counties
CountyEffective rateTheir median billSame home herevs. Cook
Cook County1.91%$6,191$6,191-
DuPage County2.05%$8,007$6,638+$447/yr
Kane County2.26%$7,382$7,326+$1,135/yr
Lake County2.58%$8,923$8,376+$2,185/yr
Will County2.24%$7,173$7,283+$1,092/yr

Cook County, Illinois Property Tax Exemptions

There are 6 property tax exemptions available in Cook County, Illinois. What each saves depends on your own assessed value and local rate, so no fixed yearly figure is shown.

Property tax exemptions available in Cook County, Illinois: who qualifies, what each is worth, and when to file
ExemptionWhat you getSaves a yearWhen to file
Homeowner (General) ExemptionOwner-occupants using the property as principal residenceReduces EAV by $10,000 (avg ~$950/yr)VariesBy the annual deadline; auto-renews
Senior ExemptionHomeowners age 65+ occupying as principal residenceReduces the property's EAVVariesBy the annual deadline; auto-renews
Senior FreezeSenior Exemption qualifiers, household income $65,000 or lessFreezes the property's EAV against increasesVariesEvery year
Persons with Disabilities ExemptionHomeowners who are disabled$2,000 EAV reductionVariesAnnually (now auto-renews under new law)
Veterans with Disabilities ExemptionVeterans with a VA-certified service-connected disabilityEAV reduction scaling with rating (full at 70%+)VariesAnnual filing
Longtime Homeowner ExemptionLong-tenured owner-occupants meeting income/residency limitsExpanded homeowner exemption with no maximumVariesBy the annual deadline

Cook County, Illinois Cheat Sheet

Value, rate, bill, rank, and the protest and payment dates · every figure the sections above establish, restated as label and value · Cook County, Illinois

Cook County, Illinois Cheat Sheet
Median tax bill$6,191 a year+2.3% year over year
Effective tax rate1.91%of market value · Illinois 2.01% · U.S. 0.94%
Median home value$324,500the value your bill is calculated from
Middle half of homes$213,400 – $474,30025th to 75th percentile home value
National rank73rd highestmedian bill, of 3,211 U.S. counties
Change since 2020+15.9%median bill, $5,342 to $6,191
Effective rate since 2020-8.7%percent change in the rate, not percentage points
Cheapest neighborDuPage County$447 a year less on the same $324,500 home
Who values your homeCook County Assessor's Officemarket value as of the assessment date
Notice arrivesYour township's reassessment yearNotice of your proposed assessed value, mailed when your township is reassessed
Protest windowSet township by township, on a rolling scheduleApply for an Appeal Online (Assessor); Submit an Appeal (Board of Review) · free to file · Cook County Assessor (first level); Cook County Board of Review (second level); PTAB/Circuit Court beyond
Protest odds88% win a reductionwith Abode Money · we build the evidence, file, and argue it for you
Payment dueFirst installment around March 1, second around August 10.75% per month (9% a year), reduced from 1.5% per month in 2024

Statistics here come from the U.S. Census Bureau’s American Community Survey: what owners report their home is worth and what they paid in tax. They are not assessment roll figures, so they will not match your notice. Nothing here is tax advice.

Cook County, Illinois Property Tax FAQ

Straight answers about property taxes in Cook County, Illinois: the effective rate and typical bill, when taxes are due, the protest deadline, whether an appeal is worth filing, what evidence wins a reduction, and how Abode lowers your bill every year.

The effective property tax rate in Cook County is 1.91%. The typical homeowner pays $6,191 a year on a median home value of $324,500.

Cook County property taxes are due first installment around March 1, second around August 1. Bills are issued in two installments a year, in arrears, and late payments are charged 0.75% per month (9% a year), reduced from 1.5% per month in 2024. Due dates shift year to year, so confirm the current one with the tax office.

Usually yes. A protest backed by comparable sales or evidence of condition problems stands a real chance of a reduction, and most are settled at an informal review without a hearing. A lower value also becomes the starting point for the following year, so a single win keeps paying. Filing in Cook County is free, and your value cannot be raised because you protested.

The strongest evidence is recent sales of comparable homes: three to five from the past year, nearby, and similar in size, age, and condition. Photos and repair estimates for condition problems help too, because the assessor values homes from the outside. Budget about 2-4 hrs to assemble it.

Abode protests your Cook County assessment every year for $99/yr flat and wins a reduction 88% of the time. Doing it yourself is free but takes 6-10 hrs and wins 40-60% of the time.

Every house on this street pays a different bill.

Make sure yours is the right one. Abode checks your assessment, files your exemptions, and protests when the numbers are off.

Check my home in 15 seconds
Illustration of a residential street at dusk, every window glowing