Wheeler-Magnus Round Barn

Arlington Heights is a municipality in Cook County with a small portion in Lake County in the U.S. state of Illinois. A suburb of Chicago, it lies about 25 miles (40 km) northwest of the city's downtown. Per the 2020 Census, the population was 77,676. Per the 2010 Census, it is the most populous community in the United States that is incorporated as a "village", and is the 13th most populous municipality in Illinois, although it is not far ahead of its nearby Illinois neighboring villages of Schaumburg and adjacent Palatine. Arlington Heights is known for the former Arlington Park Race Track, home of the Arlington Million, a Breeders' Cup qualifying event; it also hosted the Breeders' Cup World Thoroughbred Championships in 2002. The village is also home to the Arlington Heights Memorial Library, which has one of the largest collections of books in the state.

Arlington Heights School District 25 (AHSD25) is a school district that serves and is based in Arlington Heights, Illinois, a suburb of Chicago. The school district serves over 5,550 students in nine schools.

The Arlington Heights Park District is one of the oldest and (financially) largest park districts in the Chicago metropolitan area. With two golf clubs and five outdoor pools, plus one indoor, it can be considered one of the most elaborate park districts northwest of Chicago. The district collects property taxes through the village of Arlington Heights. The annual budget for 2010/2011 was a near $25,000,000. The Board of Commissioners are selected by the community, each of whom selected will serve a four-year term.

The Nathaniel Moore Banta House is an Arts and Crafts residence adjacent to the Muller House on the grounds of the Arlington Heights Historical Museum, United States. It has been on the National Register of Historic Places since May 20, 1998.

The Müller House is a historic house located at 500 North Vail Avenue in Arlington Heights, Illinois. F.W. Müller built the house for his family and their soda water business in 1882. The Müller business was one of the first commercial establishments in Arlington Heights and was part of the city's early transition from a rural settlement to a large suburb of Chicago. The house is also an uncommon blend of architectural styles; while it features a Greek Revival cornice with scrolled brackets and a symmetrical front facade, the style is not seen elsewhere in the house, which otherwise has a Victorian design. The design also combines the functional necessities of the factory with the decorative features of a middle-class home; prominent among the latter is the house's woodwork, which includes a carved oak staircase.The house was added to the National Register of Historic Places on March 26, 1979. It is now part of the Arlington Heights Historical Museum.

Arlington High School was a public high school located in Arlington Heights, Illinois, which operated from 1922 to 1984. It was the oldest school in Township High School District 214 which served students in Arlington Heights, Buffalo Grove, Elk Grove Village, Mount Prospect, Prospect Heights, Rolling Meadows and Wheeling, Illinois. The school occupied a site that is approximately 1.3 km due east of Arlington Racetrack. In the mid-1980s, District 214 had budget concerns with declining enrollment. As a result, the district board members decided to close Arlington High School in 1984, and Forest View High School in 1986.

Christian Liberty Academy (CLA) is a private Christian school serving about 500 students, located in Arlington Heights, Cook County, Illinois. The school serves families who live in 69 surrounding cities. CLA has grades preschool through twelfth grade and was founded in 1968 under the auspices of the Church of Christian Liberty. The church provides oversight for the school as one of its ministries, though students and parents are not required to be members or attend the church.

Arlington Heights is one of two commuter railroad stations along Metra's Union Pacific Northwest Line in the village of Arlington Heights, Illinois. The station is located at 45 West Northwest Highway (US 14), between Vail and Dunton Avenues, and lies 22.9 miles (36.9 km) from Ogilvie Transportation Center in Chicago and 40.3 miles (64.9 km) from Harvard. In Metra's zone-based fare system, Arlington Heights is in zone E. As of 2018, Arlington Heights is the fifth busiest of the 236 non-downtown stations in the Metra system, with an average of 2,506 weekday boardings.As of April 25, 2022, Arlington Heights is served by 27 inbound trains and 28 outbound trains on weekdays, by all 17 trains in both directions on Saturdays, and by all 10 inbound trains and all 11 outbound trains on Sundays. Four inbound trains originate from Arlington Heights, and four outbound trains terminate at Arlington Heights on weekdays. One inbound train originates from Arlington Heights on weekends. Parking is available along Northwest Highway and the north side of the tracks from east of Walnut Avenue to Dunton Avenue. It is also available on the south side of the tracks between Vail and Dunton Avenues leading into Payton Run. A much larger parking lot exists on the south side of the track between Evergreen Avenue and Arlington Heights Road north of Sigwalt Street. A fourth parking lot is available north of US 14 along Vail Avenue between St. James and Fremont Streets. Three others are not available to commuters. There is a newsstand, restroom and staffed (weekday mornings) ticket agent inside the station building.

Saint Viator High School is a private Roman Catholic co-educational secondary school run by the Clerics of Saint Viator in Arlington Heights, Illinois. It was founded by Father Louis Querbes and opened in 1961 to serve as a college-preparatory school for students from the northwest suburbs of Chicago, which is part of the Archdiocese of Chicago.

WCLR was a radio station that broadcast on 88.3 FM in Arlington Heights, Illinois. It was owned by the Educational Media Foundation and broadcast its Air1 Contemporary Christian network. Throughout its existence, WCLR shared the 88.3 frequency with Palatine-based WHCM at William Rainey Harper College, broadcasting on weekends and when the college was not in session. Pursuant to an agreement with the college, the WCLR license was canceled in 2017 to allow WHCM to broadcast full-time on 88.3.

John Hersey High School (also referred to as Hersey or JHHS) is a four-year public high school located in Arlington Heights, Illinois, a northwest suburb of Chicago in the United States. It has its students from Arlington Heights and also enrolls students from Prospect Heights and Mount Prospect. The attendance zone also includes small portions of Des Plaines and Glenview which lack residents. Named after writer John Hersey, it is part of Township High School District 214 which also includes Buffalo Grove High School, Elk Grove High School, Prospect High School, Rolling Meadows High School, and Wheeling High School.

Chicago Futabakai Japanese School (シカゴ双葉会日本語学校, Shikago Futabakai Nihongo Gakkō, CFJS; "Futabakai" means "two leaves" or "bud" organization, or "organization of growing sprouts"), alternately in Japanese Shikago Nihonjin Gakkō (シカゴ日本人学校, Chicago Japanese person School), is a Japanese elementary and junior high day school and Saturday education program in Arlington Heights, Illinois near Chicago. As of 1988 it is sponsored by the Japanese Ministry of Education, now the Ministry of Education, Culture, Sports, Science and Technology (MEXT). Before moving to Arlington Heights in 1998, the Futabakai education program was previously located in Chicago, Skokie, and Niles in Illinois, with the day program beginning during the period in Skokie. As of 1994 the school is not affiliated with any Japanese school system or university.