Suburban Trust and Savings Bank Building

Oak Park is a station on the Chicago 'L' system, serving the Blue Line's Forest Park branch and Oak Park, Illinois. The station is alongside the Eisenhower Expressway between Oak Park Avenue and East Avenue, near the Oak Park Conservatory. The auxiliary entrance on East Avenue is half a block from the Oak Park Conservatory.

On September 2, 2024, a mass shooting occurred aboard a Chicago Transit Authority (CTA) Blue Line train as it traveled between Oak Park station and Harlem station. Four people were killed at random. The alleged shooter was taken into custody and charged with four counts of first-degree murder.

Oak Park Conservatory is a conservatory and botanical garden located at 615 Garfield Street in the Chicago suburb of Oak Park, Illinois, United States. It is open daily with restricted hours; admission is free, but a donation is suggested.

WEUR (1490 AM) is a time-brokered radio station licensed to Oak Park, Illinois, United States, the station serves the Chicago metropolitan area. The station is currently owned by Daniela Wojcik, through licensee CSWWII, LLC.

The Oak Park Arms is an independent living and assisted living retirement community located at 408 S. Oak Park Avenue, Oak Park, Illinois. The Oak Park Township Senior Services and The Lifelong Learning Center of Oak Park - River Forest are both located inside the Oak Park Arms. More than ten other providers of senior-centered care maintain offices at the Oak Park Arms. Kindness Creators, an intergenerational daycare located inside of Oak Park Arms, opened on August 29, 2019.

The Gunderson Historic District is a residential historic district in southern Oak Park, Illinois. The district encompasses 230 residential buildings built between 1906 and 1920, the vast majority of which are single-family homes. The development was the second of two built in Oak Park by S.T. Gunderson and Sons, a housing company which mainly worked in Oak Park and the West Side of Chicago. The firm commissioned architect Frank DeMoney to design their Oak Park houses; most of his designs used the American Foursquare style, a simple style which could be executed affordably. DeMoney differentiated the houses by applying elements of other contemporary architectural styles, such as Arts and Crafts, Colonial Revival, or Prairie School. The uniform design and layout of its homes made the district an early example of tract housing, which would become much more widespread later in the twentieth century.The district was added to the National Register of Historic Places on March 1, 2002.

Fenwick High School is a selective private Catholic college preparatory school located in Oak Park, a town in Cook County, Illinois that is bordered by Chicago on the north, east, River Forest and Forest Park on the West, and Cicero and Berwyn on the south. Fenwick was founded in 1929 as part of the Province of St. Albert the Great (Dominican Friars). It is the only school directly operated and staffed by the Catholic Order of Dominican friars in the United States. It is named in honor of Cincinnati Bishop Edward D. Fenwick.

The George W. Smith House is a home in the Chicago suburb of Oak Park, Illinois, United States designed by American architect Frank Lloyd Wright in 1895. It was constructed in 1898 and occupied by a Marshall Field & Company salesman. The design elements were employed a decade later when Wright designed the Unity Temple in Oak Park. The house is listed as a contributing property to the Ridgeland-Oak Park Historic District which joined the National Register of Historic Places in December 1983.

Harlem is a station on the 'L' system, serving the Blue Line's Forest Park branch in Forest Park, Illinois. The station was built with an auxiliary entrance at Circle Avenue that was eventually converted to an exit only facility. The Circle Avenue entrance reopened as an auxiliary entrance/exit on September 26, 2009, at 4 PM. To the south of the station is the Ferrara Candy Company (formerly Ferrara Pan [the "Pan" part of the name was dropped in 2012.) A Roos chest-making factory was located west of the station and Circle Avenue until it was torn down in 2013 to make way for a new recreation park that opened there in 2018. The Roos company closed for good in 1951. Harlem opened in 1960 and is composed of a main entrance on Harlem Avenue and an auxiliary entrance on Circle Avenue, providing access to the station's platform. Harlem is open 24/7 365 days a year as part of the overnight service of the Blue Line and an annual total of 346,005 passengers have boarded the station in 2012. The station is not to be confused with the Blue Line's other station on Harlem Avenue that is located on the Kennedy Expressway portion of the line.

Wisconsin/Randolph was a rapid transit station on the Chicago "L" between 1899 and 1903 in Oak Park, Illinois. It was the western terminus of the Randolph Street branch operated by the Lake Street Elevated Railroad.

The Ridgeland–Oak Park Historic District is a historic district in Oak Park, Illinois that was listed on the National Register of Historic Places in 1983. It includes 1558 contributing buildings over 539 acres (218 ha).The district includes the George W. Smith House, an early example of Frank Lloyd Wright's work as a contributing property. The house is one of two Frank Lloyd Wright designed buildings within the Ridgeland Historic District and the only residential home; the other structure is the Unity Temple. Otherwise, the historic district lacks examples of Wright's full-fledged Prairie style that are found in abundance in the nearby Frank Lloyd Wright-Prairie School of Architecture Historic District.The district contains many buildings of merit, including the Oak Park Post Office on Lake Street, designed in 1933 by Charles E. White Jr. and his partner Bertram A. Weber, in 1933, and the Art Deco Medical Arts Building, designed by Oak Park architect Roy J. Hotchkiss.

Oak Park Elementary School District 97 operates 10 schools, (eight elementary schools (K–5, unless otherwise noted) and two middle schools (6–8) in Oak Park, Illinois, USA.) The district has 376 teachers (FTEs) serving 4,923 students. Note: Based on 2002–2003 school year data