American Society for Gastrointestinal Endoscopy

Butterfield is an unincorporated community spanning Milton Township and York Township, DuPage County, Illinois, United States. Butterfield is located north of Butterfield Road, west of Finley Road, south (and just north) of 22nd Street, and east of the East Branch of the DuPage River. It is nestled in between the communities of Glen Ellyn, Downers Grove, and Lombard. The Butterfield subdivision was founded in 1961 by F&S Construction Co. (later known as the Hoffman Rosner Corp., the same company that built Hoffman Estates). Originally named “Beautiful Butterfield”, the subdivision was later informally renamed “Butterfield East” due to the creation in 1965 of the “Butterfield West” neighborhood in the eastern edge of Glen Ellyn. However, it is usually just referred to as “Butterfield”. Butterfield contains 833 homes, and has approximately 4,636 residents, based on the 2010 Census. Children attend District 44 for grade school, and District 87 for high school. Postal service is provided by the Lombard Post Office, police service is provided by the DuPage County Sheriff's Office, and fire service is provided by contract with the Lombard Fire Department. Water and sewer services are supplied by the Illinois American Water Company, who purchase Lake Michigan water from the DuPage Water Commission. As an unincorporated subdivision, Butterfield falls under DuPage County jurisdiction, but its roads, sidewalks and parkways (that part of the lawn between the sidewalk and the street) are managed by the townships. This includes snow plowing, managing trees in the parkway, and brush pickup.Being unincorporated, Butterfield has no governmental structure, so the Butterfield Homeowners Administration serves as the “voice of the community” and as liaison to local government.

Doerhoefer Park is a public park located in the Orchard Brook neighborhood of Downers Grove, Illinois in the United States. The park was originally established in the 1960s, and in 1971 was named after Edward J. Doerhoefer, a former Park Commissioner and Board President. Its grounds, covering 14.02 acres, provide spaces for specific sports and activities, such as a turf field, basketball courts, tennis courts, and baseball fields. There is a football team, named Panthers. All of these areas have lighting available until 11:00 pm. Doerhoefer park also houses a playground, which is designed for children aged 5 years old through 12 years old. The playground is ADA compliant, and offers seating areas surrounding it. There are three parking lots surrounding the perimeter of the park, as well as parking along Venard Road, which is the western border of the park. The park is just north of Ogden Avenue, which is a main thoroughfare in the town of Downers Grove. It is positioned between Venard Road to the west, and Saratoga Avenue to the east.

Advocate Good Samaritan Hospital is a 333-bed community hospital located in Downers Grove, in the US state Illinois. The hospital opened in 1976, and operates the only Level I trauma center in the county of DuPage. Advocate Good Samaritan Hospital is a part of Advocate Aurora Health. Advocate Good Samaritan Hospital has earned a spot on the 100 Top Hospitals list five times.

Baitul Jaamay Mosque is an Ahmadi Muslim mosque in Glen Ellyn, DuPage County, in the US state of Illinois.

Chamberlain University is a private for-profit healthcare and nursing school with locations across the United States and online programs. It offers bachelor's, master's, and doctoral degree programs in nursing and a public health master's degree. It is a subsidiary of Adtalem Global Education, formerly DeVry Education Group. The university is regionally accredited by the Higher Learning Commission.

The Illinois State Toll Highway Authority (ISTHA) is an administrative agency of the U.S. state of Illinois charged with building, operating, and maintaining toll roads in the state. The roads, as well as the authority itself, are sometimes referred to as the Illinois Tollway. The system opened in 1958 in the Chicago area, and has subsequently expanded to include the eastern and central sections of Interstate 88 (I-88) extending into the northwestern part of the state. Beginning in 2005, the system was reconstructed to include more lanes and open road tolling, the latter of which uses I-Pass transponders to collect revenue as vehicles pass antennas at toll plazas or designated entrance or exit ramps. As of 2017, ISTHA maintains and operates 294 miles (473 km) of tollways in 12 counties in Northern Illinois.

Downers Grove North High School (DGN; sometimes Downers North or North; formerly Downers Grove High School) is public high school situated in the city of Downers Grove in the Illinois state of the United States. The school was established in 1928.

Yorktown Center is a shopping mall located in the village of Lombard, a suburb of Chicago, Illinois, United States. The mall's anchor stores are JCPenney, Marshalls, and Von Maur, with one vacant anchor store that was once Carson Pirie Scott. The Von Maur store is the second largest in the chain, the largest being at Perimeter Mall that opened in 2012 in Dunwoody, Georgia. The mall also features more than 100 other stores on its two levels. Other amenities include a food court and an outdoor concourse of shops known as The Shops on Butterfield. At the time of its 1968 opening, the 1,300,000-square-foot (120,000 m2) Yorktown Center ranked as the largest shopping center in America. The mall was originally a four-anchor indoor mall - three-story Carson Pirie Scott and Wieboldt's anchor department stores faced each other across a central courtyard, while wings for two-story JCPenney and Montgomery Ward anchor department stores stretched northward and southward, respectively, from the center courtyard. North of the mall proper, a strip mall dubbed the "Convenience Center" was constructed. This was originally anchored by a Grand Union supermarket. Other perimeter buildings included auto centers for the JCPenney and Montgomery Ward anchors, a General Cinema movie theater, and two restaurants. One unusual feature is the Boeger-Brinkman Cemetery on the southern end of the parking lot, along Butterfield Road. The cemetery was part of a family's farmland that was sold to develop Yorktown Center. A small section of the cemetery remains while others were moved for the construction of the shopping center. Since 2020, another new feature of the mall is that it is now considered the first dog-friendly mall in the entire state of Illinois.

Northern Seminary is a private Baptist seminary in Lisle, Illinois. It is affiliated with the American Baptist Churches USA.

Belmont is a railway station on Metra’s BNSF Line located on the outskirts of Downers Grove, Illinois in the small community of Belmont. The station is on Belmont Road 22.9 miles (36.9 km) from Union Station, the east end of the line. As of 2018, Belmont is the 25th busiest of Metra's 236 non-downtown stations, with an average of 1,408 weekday boardings.Like Downers Grove Main Street, Belmont has connections to both Pace Buses, and the Village's own Grove Commuter Shuttle. Unlike the stations at Main Street and Fairview Avenue however, Belmont has parking vendors. The station underwent major renovations in the late 2000s. In order to reduce level crossing accidents, an underpass was installed. Belmont Road was re-routed underneath the tracks. Demolition began in late 2008, construction started in 2010, and the new underpass and pedestrian tunnel opened in 2012. The $60 million project was funded by Metra, BNSF, DuPage County, and the State of Illinois.Many trains during the weekday rush hours skip this station. In addition, all weekend trains stop here.

Midwestern University (MWU) is a private medical and professional school with campuses in Downers Grove, Illinois and Glendale, Arizona. As of the 2020–21 academic year, a total of 2,987 students were enrolled at the Downers Grove campus and 3,902 were enrolled at the Glendale campus. Founded in 1900 as the American College of Osteopathic Medicine and Surgery, the Chicago College of Osteopathic Medicine is the fourth-oldest medical school currently active in Illinois. Over the years, the university expanded, adding additional degrees and programs; in 1993, the school united these programs under the name Midwestern University. In 1995, the school opened a campus in Glendale, Arizona, becoming the second and largest medical school to teach students in the state. The university is accredited by the Higher Learning Commission and the medical schools are also accredited by the American Osteopathic Association's Commission on Osteopathic College Accreditation.

The Metropolitan Library System (MLS) was an association of academic, public, school, and special libraries in Chicago and its suburbs in Cook, DuPage and Will counties. On July 1, 2011, Metropolitan Library System merged with Alliance Library System, DuPage Library System, North Suburban Library System, and Prairie Area Library System to form the Reaching Across Illinois Library System. Sarah Ann Long, director of the North Suburban Library System, summarized the evolution of organizations in northern Illinois in a 2011 essay,"Context is Everything."