Oak Brook, Illinois

Oak Brook is a village mostly in DuPage County with a small portion in Cook County in Illinois. Per the 2020 census, the population was 8,163.[3] This suburb of Chicago has the headquarters of several companies and organizations including Ace Hardware, Blistex, Federal Signal, CenterPoint Properties, Sanford L.P., TreeHouse Foods, and Lions Clubs International. It is the former corporate home of McDonald's and Ferrara Candy (now both moved to Chicago).

Oak Brook, Illinois
Village of Oak Brook
Mayslake Peabody Estate
Location of Oak Brook in DuPage and Cook Counties, Illinois.
Location of Oak Brook in DuPage and Cook Counties, Illinois.
Coordinates: 41°49′58″N 87°55′44″W / 41.83281°N 87.92895°W / 41.83281; -87.92895Coordinates: 41°49′58″N 87°55′44″W / 41.83281°N 87.92895°W / 41.83281; -87.92895[1]
Country United States
CountiesDuPage, Cook
TownshipsYork, Downers Grove, Proviso
 • TypeCouncil–manager
 • PresidentDr. Gopal Lalmalani
 • Total8.30 sq mi (21.49 km2)
 • Land7.98 sq mi (20.66 km2)
 • Water0.32 sq mi (0.83 km2)  3.99%
663 ft (202 m)
 • Total8,163
 • Density1,023.45/sq mi (395.15/km2)
 Down 9.41% from 2000
Standard of living (2013)
 • Per capita income$77,387
 • Median home value$728,296
ZIP code(s)
Area code(s)630 and 331
FIPS code17-54534
Websitewww.oak-brook.org Edit this at Wikidata
Mayslake Peabody Estate Forest Preserve


Oak Brook was originally known as Fullersburg, named after Ben Fuller, an early settler.[4]

Oak Brook was incorporated as a village in 1958, due in large part to the efforts of Paul Butler, a prominent civic leader and landowner whose father had first moved to the vicinity in 1898 and opened a dairy farm shortly thereafter. Prior to incorporation, the name Oak Brook was used by local residents to distinguish their community from neighboring Hinsdale and Elmhurst, going back to the founding of the Oak Brook Civic Association almost two decades earlier.[5]

The original boundaries were smaller than the present extent of the village, but a considerable amount of land was annexed soon after the founding of the village, including the land that is now the site of the Oakbrook Center shopping mall, which opened in 1962.

In 1964 Butler entered a joint venture with the Del E. Webb Corporation of Phoenix, Arizona to increase development of the area. Webb's construction company constructed dozens of buildings in Oak Brook both commercial and residential. The Webb Corporation's involvement in the development of the village lasted into the late 1970s.[6]

Paul Butler's interest in sport was reflected in the Oak Brook Sports Core, which features polo fields, a golf course (which was at one time the venue for the Western Open), swimming and tennis facilities, and other recreational facilities not commonly found in a village of this size.[7]


According to the 2021 census gazetteer files, Oak Brook has a total area of 8.29 square miles (21.47 km2), of which 7.96 square miles (20.62 km2) (or 96.11%) is land and 0.32 square miles (0.83 km2) (or 3.89%) is water.[8]

Oak Brook is located about 19 miles (31 km) west of the Chicago Loop (downtown Chicago) and is served by a network of major federal, state, and county roads, including the Tri-State Tollway (Interstate 294), the Ronald Reagan Memorial Tollway (Interstate 88), and the Eisenhower Expressway (Interstate 290). Although Oak Brook is not directly served by any CTA or Metra trains, the commercial corridor along 22nd Street is served by several Pace bus routes, and train stations in neighboring villages offer commuter train access to downtown Chicago.

Most of Oak Brook consists of residential subdivisions, with the exception of the Oakbrook Center shopping mall and other retail and office properties along 22nd Street and the Interstate 88 corridor in the northern part of the village.

The village's adjacent neighbors are Elmhurst to the north, Hillside to the northeast, Westchester to the east, Hinsdale and Westmont to the south, Downers Grove to the southwest, and Lombard and Oakbrook Terrace to the northwest.


Historical population
Census Pop.
U.S. Decennial Census[9]
2010[10] 2020[11]

As of the 2020 census[12] there were 8,163 people, 3,029 households, and 2,320 families residing in the village. The population density was 985.16 inhabitants per square mile (380.37/km2). There were 3,308 housing units at an average density of 399.23 per square mile (154.14/km2). The racial makeup of the village was 57.79% White, 32.84% Asian, 1.85% African American, 0.09% Native American, 0.02% Pacific Islander, 1.58% from other races, and 5.83% from two or more races. Hispanic or Latino of any race were 4.85% of the population.

There were 3,029 households, out of which 48.00% had children under the age of 18 living with them, 63.19% were married couples living together, 6.54% had a female householder with no husband present, and 23.41% were non-families. 22.85% of all households were made up of individuals, and 19.02% had someone living alone who was 65 years of age or older. The average household size was 3.11 and the average family size was 2.63.

The village's age distribution consisted of 19.4% under the age of 18, 5.9% from 18 to 24, 15.8% from 25 to 44, 23.1% from 45 to 64, and 35.6% who were 65 years of age or older. The median age was 55.1 years. For every 100 females, there were 85.9 males. For every 100 females age 18 and over, there were 87.9 males.

The median income for a household in the village was $140,743, and the median income for a family was $175,500. Males had a median income of $136,125 versus $77,067 for females. The per capita income for the village was $79,838. About 2.0% of families and 4.2% of the population were below the poverty line, including 1.0% of those under age 18 and 5.6% of those age 65 or over.

Oak Brook village, Illinois – Demographic Profile
(NH = Non-Hispanic)
Race / Ethnicity Pop 2010[10] Pop 2020[11] % 2010 % 2020
White alone (NH) 5,395 4,648 68.44% 56.94%
Black or African American alone (NH) 154 149 1.95% 1.83%
Native American or Alaska Native alone (NH) 2 5 0.03% 0.06%
Asian alone (NH) 1,830 2,678 23.21% 32.81%
Pacific Islander alone (NH) 0 2 0.00% 0.02%
Some Other Race alone (NH) 3 40 0.04% 0.49%
Mixed Race/Multi-Racial (NH) 160 245 2.03% 3.00%
Hispanic or Latino (any race) 339 396 4.30% 4.85%
Total 7,883 8,163 100.00% 100.00%

Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.


Public schoolsEdit

Oak Brook has its own school district, District 53, which includes Brook Forest Elementary School (grades K-5) and Butler Junior High School (grades 6–8). Students that live within the district attend Hinsdale Central High School, District 86. However, some residents of the village are within other DuPage county school districts and attend schools in Elmhurst, Downers Grove or Villa Park.

Elementary schools

  • Brook Forest Elementary School (Butler District 53)
  • Hinsdale Community Consolidated School District 181
  • Elmhurst Community Unit School District 205
  • Downers Grove Elementary School District 58
  • Salt Creek School District 48

Middle schools

  • Paul Butler Jr. High School (Butler District 53)

High schools


Private schoolsEdit

  • Sunshine Montessori of Oakbrook[13]

Economy and businessEdit

McDonald's Plaza, the former headquarters of McDonald's

While many Oak Brook residents commute to jobs scattered throughout the Chicago metropolitan area, Oak Brook is also the home of many corporate offices. The world headquarters of McDonald's Corporation was in Oak Brook from 1971, when McDonald's moved into the Oak Brook facility from an office within the Chicago Loop, until 2018, when it moved back to Chicago.[14] Other corporations include Ace Hardware,[15] Blistex,[16] Crowe Horwath, TreeHouse Foods, Federal Signal,[17] Sanford, CenterPoint Properties, Dantech Information Technology,[18] Hub Group and Follett Higher Education Group.[19] Global non-profit organizations such as Lions Clubs International,[20] Zonta International[21] and Institute in Basic Life Principles[22] are also based in Oak Brook.

Top employersEdit

According to the Village's 2011 Comprehensive Annual Financial Report,[23] the top employers in the city are:

# Employer # of Employees
1 Oakbrook Center 3,150
2 McDonald's 3,000
3 Advocate Health Care 1,075
4 Inland Real Estate Corporation 846
5 Ace Hardware 796
6 ADT Security Services 725
7 Newell Rubbermaid 323
8 Follett Higher Education Group 320
9 Lions Clubs International 300
10 Reed Elsevier 230


Oak Brook vote
by party in presidential elections
Year Democratic Republican Third Parties
2020[24] 46.09% 2,743 52.49% 3,124 1.43% 85
2016[25] 41.35% 2,145 53.96% 2,799 4.68% 243
2012[26] 29.76% 1,403 69.35% 3,270 0.89% 42

Oak Brook is a predominantly Republican village in presidential elections. Unlike most of DuPage county, it voted for Republican nominees Donald Trump, and Mitt Romney in each of the past three presidential elections.

Notable peopleEdit

In popular cultureEdit

In the medical drama series ER, John Carter's parents are said to live in Oak Brook, referencing it as a rich area. The show filmed a funeral scene in Oak Brook's Bronswood cemetery in its 267th episode, "Twenty-One Guns".[citation needed]

In a popular ad campaign by Hanes, Michael Jordan is asked by an irreverent yet likable "everyman" to join him at a conference in Oak Brook, Illinois, explaining to Jordan that, "...it would mean a lot to the people of Oak Brook."[citation needed]

In the TV series "The X-Files" Oak Brook, IL is the setting for the episode titled "Folie a Deux."


  1. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
  2. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved March 15, 2022.
  3. ^ "Oak Brook village, Illinois". United States Census Bureau. Retrieved April 15, 2022.
  4. ^ "Several Towns Named After Founders and Heroes". The Daily Herald. December 28, 1999. p. 220. Retrieved August 17, 2014 – via Newspapers.com.  
  5. ^ "Oak Brook, IL". Encyclopedia.chicagohistory.org. Retrieved October 17, 2011.
  6. ^ "NEWSLETTERS – "Webb Spinner" – Del Webb Sun Cities Museum". 27 June 2016. Retrieved 2019-10-15.
  7. ^ "History of DuPage County : Oak Brook". Dupagehistory.org. Retrieved October 17, 2011.
  8. ^ Bureau, US Census. "Gazetteer Files". Census.gov. Retrieved 2022-06-29.
  9. ^ "Decennial Census of Population and Housing by Decades". US Census Bureau.
  10. ^ a b "P2 HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE – 2010: DEC Redistricting Data (PL 94-171) – Oak Brook village, Illinois". United States Census Bureau.
  11. ^ a b "P2 HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE – 2020: DEC Redistricting Data (PL 94-171) – Oak Brook village, Illinois". United States Census Bureau.
  12. ^ "Explore Census Data". data.census.gov. Retrieved 2022-06-28.
  13. ^ "Sunshine Montessori of Oakbrook". Sunshinemontessoriobt.com. Retrieved October 17, 2011.
  14. ^ Cross, Robert. "Inside Hamburger Central." Chicago Tribune. January 9, 1972. G18. Retrieved on September 17, 2009.
  15. ^ "Ace". Acehardware.com. Retrieved October 17, 2011.
  16. ^ "About Blistex". Blistex.com. Retrieved October 17, 2011.
  17. ^ "Federal Signal Locations". Federalsignal.com. February 17, 2011. Archived from the original on October 10, 2011. Retrieved October 17, 2011.
  18. ^ "Managed IT Services by DantechIT". DantechIT.com. Retrieved August 4, 2012.
  19. ^ "Follett - Educational Products, Services and Technology".
  20. ^ "Contact Us". Lionsclubs.org. Retrieved October 17, 2011.
  21. ^ "Zonta International". Zonta.org. Retrieved May 24, 2015.
  22. ^ "Contact Us". IBLP. Retrieved October 17, 2011.
  23. ^ "Village of Oak Brook CAFR" (PDF). Retrieved August 31, 2012.
  24. ^ "List Elections".
  25. ^ "List Elections".
  26. ^ "List Elections".
  27. ^ Megan, Graydon (2013-01-16). "William Cullerton, 1923-2013 WWII pilot, entrepreneur, radio host and well-known outdoorsman championed conservation". Chicago Tribune. Retrieved 2013-01-25.
  28. ^ Goldsborough, Bob (9 December 2014). "House built by White Sox slugger Frank Thomas sells for $2.71 million". Chicago Tribune. Archived from the original on 18 January 2015. Retrieved 28 May 2016.
  29. ^ Smith, Bryan (21 April 2014). "Behind the Beanie Babies: The Secret Life of Ty Warner". Chicago Magazine. Retrieved 8 August 2021.
  30. ^ O'Connor, Matt (October 16, 1997). "Top mob loan shark, son are sentenced to prison". Chicago Tribune. p. 8.

External linksEdit