be of any race. Education Public schools 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. Middle schools Paul Butler Jr. High School (Butler District 53) High schools Hinsdale Township High School District 86 - Hinsdale Central High School Elmhurst Community Unit School District 205 - York Community High School Community High School District 99 - Downers Grove North High School DuPage High School District 88 - Willowbrook High School Westmont Community Unit School District 201 - Westmont High School Colleges Community College District 502 - College of DuPage Private schools Sunshine Montessori of Oakbrook Economy and business 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. Other corporations include Ace Hardware, Blistex, Crowe Horwath, TreeHouse Foods, Federal Signal, Sanford, CenterPoint Properties, Dantech Information Technology, Hub Group and Follett Higher Education Group. Global non-profit organizations such as Lions Clubs International, Zonta International and Institute in Basic Life Principles are also based in Oak Brook. Top employers According to the Village's 2020 Comprehensive Annual Financial Report, the top employers in the city are: Politics 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 people Chris Chelios, Stanley Cup-winning defenseman with the Detroit Red Wings, who also played for the Montreal Canadiens, Chicago Blackhawks, and Atlanta Thrashers William J. Cullerton, World War II flying ace, former host of "Great Outdoors" on WGN Radio Bill Gothard, founder of "The Institute In Basic Life Principles", IBLP Stan Mikita, Stanley Cup-winning center with the Chicago Blackhawks Dick Portillo, founder of the Portillo Restaurant Group Ed Rensi, a former CEO of McDonald's Frank Thomas, first baseman with several Major League Baseball teams; lived in Oak Brook (1996–2003) Ty Warner, founder