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Northbrook, Cook County, Illinois Property Taxes

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Property Taxes in Northbrook, Illinois

  • Median Northbrook, Illinois effective property tax rate: 2.15%, significantly higher than the national median of 1.02%, and lower than the Illinois state median of 2.33%.

  • Median Northbrook, Illinois home value: $500,000

  • Median annual Northbrook, Illinois tax bill: $10,728, higher than the national median property tax bill of $2,400.

How are property taxes in Cook calculated?

Property taxes in Northbrook, Illinois are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Northbrook's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Northbrook, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Northbrook, Cook County, Illinois Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.15%

Estimate Property Tax Bill

$10,750

$9,976

SAVE WITH OWNWELL

$774

Average Annual Tax Savings

How Does the Northbrook Property Tax Calculator Work?

Use this Northbrook property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Northbrook's median effective tax rate of 2.15% — based on actual property records in Cook County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Northbrook's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Northbrook: rates range from 2.15% in 60062 to 2.15% in 60062, primarily due to differences in school district levies and local assessment districts.

If your estimate is higher than expected, Ownwell can appeal your Northbrook assessment — you only pay if we save you money.

About Northbrook Property Taxes

About Property Taxes in Northbrook, Cook, Illinois

Northbrook’s median effective property tax rate of 2.15% is lower than the Illinois state median of 2.33% and higher than the national median of 1.02%. This rate reflects the Cook County levy combined with local school district levies and special service areas that can vary by subdivision throughout the city.

Property tax rates are not uniform across Northbrook. Homeowners in the 60062 ZIP code carry a median effective rate of 2.15%, and the same ZIP code also shows the lowest median rate of 2.15%. That means the local tax burden is shaped less by ZIP code variation here and more by how assessed values and district boundaries affect each home’s bill.

Northbrook homeowners who believe their assessed value is too high can file a formal appeal with the Cook County Assessor’s Office before the annual deadline.

If your estimated bill seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Northbrook, Cook County, Illinois

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Northbrook's effective property tax rate to other cities in Illinois and the median property tax rates in Illinois and the U.S.

Property Tax Rates Across Northbrook, Cook County, Illinois

Source: Ownwell

1.11%

5.02%

8.93%

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 Effective Northbrook Tax Rate

2.15%

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 Effective Cook County Tax Rate

2.14%

Median Effective Illinois Tax Rate

2.33%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Northbrook, Cook County, Illinois

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
600621.78%2.02%2.15%2.28%2.36%

Source: Ownwell

Property Tax Assessment Values Across Northbrook, Cook County, Illinois

When examining property taxes in Northbrook, Illinois, understanding the distinction between market value and assessed value is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Cook County assessor estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Cook County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By understanding how assessed and market values are determined, property owners can better navigate their tax responsibilities and the valuation process affecting their property taxes in Northbrook.

For example, the median home price in Northbrook is $500,000, with tax bills ranging significantly across the county. 60062 has the highest median home price at $500,000.

Property Tax Assessment Values Across Northbrook, Cook County, Illinois

Source: Ownwell

$28,470

$625,355

$1,222,240

Median Northbrook Market Value

$500,000

Median Cook County Market Value

$248,820

Median Illinois Market Value

$227,888

Median United States Market Value

$235,294

Property Tax Assessment Values Across Northbrook, Cook County, Illinois

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
60062$195,918$343,120$500,000$650,000$887,374

Source: Ownwell

Property Tax Bills Across Northbrook, Cook County, Illinois

Property tax bills in Northbrook are calculated by applying the local tax rate to a home’s assessed market value, then adjusting for exemptions and the share of taxes needed to fund local services. For a $500,000 home, the bill can vary widely depending on the property’s assessment and location within Cook County. Homeowners in Northbrook face a median tax bill of $10,728, which is far above the national median property tax bill of $2,400 and reflects the area’s higher tax burden.

What factors are considered? The assessed value, local taxing districts, and any eligible exemptions all play a role in determining the final amount. Bills at the 25th percentile are $6,781, while the 75th percentile reaches $14,172 and the 90th percentile climbs to $19,543.

Ownwell helps homeowners lower property tax bills by reviewing assessments, identifying savings opportunities, and filing appeals when a home is overassessed. That can make a meaningful difference for Northbrook homeowners facing high annual property taxes.

Property Tax Bills Across Northbrook, Cook County, Illinois

Source: Ownwell

$634

$15,281

$29,928

Median Northbrook Tax Bill

$10,728

Median Cook County Tax Bill

$5,588

Median Illinois Tax Bill

$5,277

Median United States Tax Bill

$2,400

Property Tax Bills Across Northbrook, Cook County, Illinois

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
60062$3,378$6,781$10,728$14,172$19,543

Source: Ownwell

Don't miss the deadline to appeal!

Frequently Asked Property Tax Questions in Northbrook, Illinois

How are property taxes calculated in Northbrook, Illinois?
Property taxes in Northbrook, Illinois are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.
How do I appeal my property taxes in Northbrook, Illinois?
To appeal your property taxes in Northbrook, Illinois, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.
What property tax exemptions are available in Northbrook, Illinois?
Common property tax exemptions in Northbrook, Illinois include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.
When are property taxes due in Northbrook, Illinois?
Property tax deadlines in Northbrook, Illinois vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.
How can Ownwell help reduce my property taxes in Northbrook, Illinois?
Ownwell provides professional property tax appeal services in Northbrook, Illinois. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.