Oak Brook's Village Tax Line Is Zero. Why Do Oak Brook Tax Bills Still Vary So Much?

Every residential tax code inside the Village of Oak Brook shows the same entry for the village itself. In DuPage County's final 2025 rate book, for taxes payable in 2026, the Village of Oak Brook is listed at .0000. The composite rates on those same codes still range from about 3.59 to just over 5.00 per $100 of equalized assessed value. The grade school district line causes most of that spread. On some Oak Brook parcels, the total rate sits only a fraction of a point below Hinsdale's.

For a buyer, this changes where the due diligence starts. The useful number is the tax code on the parcel's PIN, and two homes a few streets apart can carry very different rates while both truthfully claim "no village property tax."

Same Village, Four Different Rates

DuPage County publishes every taxing body's rate and every tax code's composite in its 2025 tax rate booklet. These are the Oak Brook codes and two neighboring benchmarks, with all rates per $100 of EAV for tax year 2025, payable 2026.

Code 6143 is the one the county lists as Oak Brook's principal code. A residential parcel on Baybrook Lane falls in it, and the county's property record names Grade School District 53, Hinsdale High School District 86, and College of DuPage 502 as its education bodies. That code's composite also fell from 3.7277 in 2024 to 3.5937 in 2025.

The table shows an Oak Brook address in District 205 carrying a higher composite than a standard Hinsdale code. An Oak Brook address in District 181 lands 0.23 points below Hinsdale.

Where the Gap Against Hinsdale Actually Comes From

Codes 6143 and 6091 make a clean comparison. Both sit in York Township, both pay the same county, forest preserve, airport authority, township, and road district rates, and both send the same 1.5616 to High School District 86 and 0.1687 to College of DuPage. The total gap between them is 1.3788 points. It breaks down like this:

• Grade school district: Butler District 53 levies 1.2055 and District 181 levies 2.3541, a difference of 1.1486.
• Village and library: Hinsdale's code carries the Village of Hinsdale at 0.3685 and the Hinsdale library at 0.1559, together 0.5244. Oak Brook's line is zero.
• Park district: Oak Brook's code adds the Oak Brook Park District at 0.2942, which takes back more than half of the village-and-library advantage. Hinsdale's code lists no separate park district.

The net municipal advantage, the part that comes from Oak Brook having no village levy, is 0.2302. The other 1.1486 comes from the school district boundary. Put in dollars, every $100,000 of EAV works out to about $1,379 less in tax under code 6143 than under 6091 for 2025. About $1,149 of that comes from the grade school line, and about $230 from the village and park lines together.

Elmhurst follows the same pattern. Oak Brook's District 205 code and Elmhurst's code 6046 send an identical 4.1767 to Unit District 205. Of the 0.7843-point gap between them, the City of Elmhurst accounts for 0.4330, its library for 0.1874, and the difference between the Elmhurst and Oak Brook park districts for the rest. Each municipality's own line is modest. Hinsdale's village rate is about 7.4% of its composite, and Elmhurst's city rate is about 7.5%.

Each rate reflects what that body levies relative to its own tax base. The rate book publishes the result, and the reason one district's rate is lower than another's sits in each district's levy and assessed value. None of this compares the districts as schools. They appear here only as taxing bodies on a bill.

What Pays for the Zero

The village line can stay at zero because sales tax carries the General Fund. Oak Brook's audited report for the year ended December 31, 2025 says the village has operated without a real estate tax "since inception due to the sales taxes generated from retail business activities." In 2025, sales and Local Use Tax revenue rose $5.9 million, or 22.3%, over 2024, and the same report calls those receipts highly sensitive to economic conditions.

The 2026 adopted budget shows how heavily the village leans on that revenue. Sales tax accounts for $18.5 million of $30.4 million in General Fund operating revenue, roughly 61%. Through March 31, 2026, General Fund sales tax receipts were $6.66 million, compared with $5.42 million in the same period of 2025.

Village leadership has said plainly where that base is exposed. In its April 2026 Q&A on the Amazon proposal, the village wrote that a new store would diversify a sales tax base that:

"currently is heavily dependent on luxury goods from the mall, which tend to be cyclical."

The mall's tenant roster turns over too. The Purple Pig opened at Oakbrook Center in March 2026 in an 11,700-square-foot former furniture showroom. Sony Pictures' 45,000-square-foot Wonderverse there announced it would close December 22, 2025, after less than two years.

The Butterfield Road Bet

In August 2026, the Village Board voted 4-0 to rezone 27 acres at 2901 Butterfield Road from office to retail. The vote cleared a 225,000-square-foot Amazon building with a grocery and general merchandise store in front and an order fulfillment center in back. Village President Laurence Herman cast a vote because three trustees were absent. Amazon is paying $1 million to replace a nearby water main and $125,000 for public safety projects. Seven three-story office buildings from the 1970s will come down. Amazon proposed starting demolition in October and finishing construction by the end of October 2028. The board also limited Baybrook Lane in the Ginger Creek neighborhood to local traffic, so shoppers do not use it to bypass Butterfield.

The village's Q&A describes the site as 527,000 square feet of office space, much of it vacant, with four buildings taken back by the lender. The village said it rejected several developers who wanted to build large rental apartment buildings there and chose retail as the use most compatible with "Oak Brook's sales tax driven economic model." It said the expected revenue would let it address aging infrastructure and pension liabilities "without the threat of a future property tax." The Daily Herald reported that, before final approval, Trustee Michael Manzo estimated the site could bring the village $2 million to $4 million a year.

This connects back to the school-line spread. The village is providing no tax increment financing for the Amazon project. According to its Q&A, that means the schools and the Oak Brook Park District receive the full benefit of the higher assessed value, which "should also result in a decrease in the relative property tax burden to the homes in those taxing jurisdictions." That is a village forecast, not a recorded assessment. It does point at the right line on the bill. The zero village levy depends on sales tax, and any rate relief for homeowners would show up in the school and park lines.

Before You Write an Offer in Oak Brook

1. Pull the tax code from the PIN. DuPage County's property lookup shows the tax code and the taxing bodies for each parcel. In Oak Brook, the code tells you which of the four composites in the table applies.
2. Match the code to the rate book. The 2025 booklet lists every component rate, so you can see exactly where your rate sits relative to a Hinsdale or Elmhurst home you are also considering.
3. Treat rate and bill as separate numbers. The county states rates per $100 of EAV. The actual bill also depends on the parcel's assessed value and any exemptions. A low-rate parcel with a high assessment can still carry a substantial bill.
4. Know the appeal calendar. DuPage County lets owners appeal assessments to the Board of Review each year, and written decisions typically come the following March.

For specific tax planning, talk with a tax professional. This post explains how the published rates are built. It is not tax advice.

FAQ

Does Oak Brook really have no property tax? The Village of Oak Brook levies no property tax on residential codes for 2025. Homeowners still pay county, township, school, park, and college levies. In 2025, the composites on Oak Brook codes ranged from 3.5937 to 5.0033 per $100 of EAV.

Is every Oak Brook home cheaper to tax than a Hinsdale home? No. Oak Brook's District 205 code, 6106, carries a 5.0033 composite, above Hinsdale's 4.9725 on code 6091. Oak Brook's District 181 code, 6108, sits at 4.7423.

Could the village start a property tax? The village said in April 2026 that new sales tax from the Amazon project and future Butterfield Road redevelopment would let it address infrastructure and pension needs without the threat of a future property tax. Whether that happens depends on how those revenue forecasts play out.

In Oak Brook, the tax code on a parcel's PIN can matter as much as the house itself, and it rarely shows up in a listing headline. Maranda Real Estate Group pulls the code and the full rate breakdown for every Oak Brook home our clients consider, so the comparison with Hinsdale or Elmhurst is accurate before an offer goes in. If you already own in Oak Brook and want to know how your tax code fits into your home's value, start with a Free Home Valuation.