Oak Brook, Dupage County, Illinois Property Taxes

Name: Property Tax Bills Across Oak Brook, Dupage County, Illinois
Creator: Ownwell
License: https://creativecommons.org/licenses/by-nc/4.0/

Median OAK BROOK, IL effective property tax rate: 1.32%, significantly higher than the national median of 1.02%, but lower than the Illinois state median of 2.35%.
Median OAK BROOK, IL home value: $743,760
Median annual OAK BROOK, IL tax bill: $10,691, $8,291 higher than the national median property tax bill of $2,400.

How are property taxes in DuPage calculated?

Property taxes in OAK BROOK, IL 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 OAK BROOK’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in OAK BROOK, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Oak Brook, Dupage County, Illinois Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.32%

Estimate Property Tax Bill

$9,818

$9,110

Ownwell’s Oak Brook Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Oak Brook with just two data points. By entering your property's estimated assessed value, our calculator applies Oak Brook’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by DuPage County — reflects any exemptions you may have, ensuring a precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in DuPage County. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Oak Brook, Dupage County, Illinois

Local government entities are responsible for setting tax rates, and these rates can differ significantly within a state. Each year, counties estimate the budget needed to provide essential services and divide this by the total value of all taxable properties in their jurisdiction, resulting in the property tax rate. While votes and laws play a role in determining tax rates and budgets, this is the core of the annual process.

In Oak Brook, located in DuPage County, Illinois, the effective property tax rate is 1.32%. This rate is higher than the national median property tax rate of 1.02%. However, it's important to note that Oak Brook's property tax rate is consistent with the median rate for Illinois, which also stands at 1.32%.

Comparing Oak Brook's property tax rate to other cities within Illinois and the national average provides valuable insights for property owners. Understanding these differences can help residents make informed decisions about property investments and financial planning.

Property Tax Rates Across Oak Brook, Dupage County, Illinois

Source: Ownwell

1.32%

2.17%

3.03%

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 Oak Brook Taxx Rate

1.32%

Median Effective Dupage County Taxx Rate

2.22%

Median Effective Illinois Tax Rate

2.35%

Median Effective United States Tax Rate

0.99%

Property Tax Rates Across Oak Brook, Dupage County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
60521	N/A	N/A	N/A	N/A	N/A
60522	N/A	N/A	N/A	N/A	N/A
60523	1.21%	1.23%	1.32%	1.71%	1.91%

Source: Ownwell

Property Tax Assessment Values Across Oak Brook, Dupage County, Illinois

When examining property taxes in Oak Brook, IL, 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 DuPage 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.

In DuPage County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. 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 providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Oak Brook. For example, the median home price in Oak Brook is $743,760, with tax bills ranging significantly across the county. Zip code 60523 has the highest median home price at $743,760.

Property Tax Assessment Values Across Oak Brook, Dupage County, Illinois

Source: Ownwell

$72,210

$441,000

$809,790

Median Oak Brook Market Value

$743,760

Median Dupage County Market Value

$319,350

Median Illinois Market Value

$194,700

Median United States Market Value

$244,900

Property Tax Assessment Values Across Oak Brook, Dupage County, Illinois

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
60521	N/A	N/A	N/A	N/A	N/A
60522	N/A	N/A	N/A	N/A	N/A
60523	$271,410	$431,670	$743,760	$1,129,950	$1,668,660

Source: Ownwell

Property Tax Bills Across Oak Brook, Dupage County, Illinois

In Oak Brook, located in DuPage County, IL, property tax bills are determined by assessing the property's value and applying the local tax rate. Unlike the national median property tax bill of $2,400, Oak Brook residents face significantly higher tax bills, with the median tax bill reaching $10,691. This substantial figure is due to the high median home price of $743,760 and the local tax rate. The property tax bill can vary widely, with the 25th percentile at $6,674 and the 90th percentile reaching $21,952. Such disparities highlight how factors like property location, assessed value, and local tax rates impact homeowners' tax obligations. For homeowners, these taxes can be a financial burden, making it crucial to seek potential savings. Ownwell offers valuable assistance by providing property tax appeal and exemption services, helping homeowners potentially reduce their tax liabilities. By leveraging expertise in local tax regulations and market assessments, Ownwell aims to secure the most favorable outcomes for its clients, effectively alleviating the financial strain of property taxes.

Property Tax Bills Across Oak Brook, Dupage County, Illinois

Source: Ownwell

$1,758

$7,802

$13,846

Median Oak Brook Tax Bill

$10,691

Median Dupage County Tax Bill

$7,313

Median Illinois Tax Bill

$4,715

Median United States Tax Bill

$2,690

Property Tax Bills Across Oak Brook, Dupage County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
60521	N/A	N/A	N/A	N/A	N/A
60522	N/A	N/A	N/A	N/A	N/A
60523	$3,828	$6,674	$10,691	$15,457	$21,949

Source: Ownwell