Glenbard South High School

Russell R. Kirt Prairie is a restored tallgrass prairie and savanna within the College of DuPage Natural Areas. A Trail Guide published by the college provides background information and ecological notes. In addition to the mesic prairie and oak savanna, the site also includes a small hill prairie, swale, marsh and wetland areas.: 8 Professor Russell R. Kirt states on the back cover of his book Prairie Plants of the Midwest: Identification and Ecology that he "began restoring prairie in 1974, two years after Ray Schulenberg of the Morton Arboretum introduced him to the prairie". In 1981 he started the restoration project by obtaining grant money from the college's Board Of Trustees, and began collecting native seeds and seedlings from sites within a 40-km radius of the college to ensure local genotypes. In 1984, he reestablished a former farmland and parking lot at the college to prairie with the help of numerous volunteers, including students. The restoration used two methods, either seed broadcast or seedling transplant. Whenever possible, species associations as described by Swink and Wilhelm were planted together. He monitored the site for at least 16 years, and published his findings at the North American Prairie Conference. After 16 years, the Floristic Quality Index (Index Value in Professor Kirt's papers) in areas restored by either method reached about 30, with no significant difference between the two.: 103 The college Board Of Trustees designated the site as West Prairie-Marsh Nature Preserve in December 1993, and renamed it Russell R. Kirt Prairie in November 1999.: 8 The prairie is located less than 100 meters from the college's Health and Science Center, making it the only sizable restored prairie in the U.S. that is within walking distance of a college classroom building, and it is often used for field study by biology, botany, and environmental science classes. The college offers a Prairie Ecology class that focuses on the tallgrass prairie ecosystem, with extensive hands-on studies in the prairie.: 17  Other disciplines that make use of the prairie resource include earth science, art, and photography.

College of DuPage is a public community college with its main campus in Glen Ellyn, Illinois. The college also owns and operates satellite campuses in Addison, Carol Stream, Naperville and Westmont. With more than 20,000 students, the College of DuPage is the second largest provider of undergraduate education in Illinois, after University of Illinois Urbana-Champaign. The college serves students residing in Illinois' Community College District 502.

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

The Morton Arboretum, in Lisle, Illinois, United States, is a public garden and outdoor museum with a library, herbarium, and program in tree research including the Center for Tree Science. Its grounds, covering 1,700 acres (6.9 square kilometres), include cataloged collections of trees and other living plants, gardens, and restored areas, among which is a restored tallgrass prairie. The living collections include more than 4,100 different plant species. There are more than 200,000 cataloged plants.As a place of recreation, the Arboretum has hiking trails, roadways for driving and bicycling, a 4-acre (16,000 m2) interactive children's garden and a 1-acre (4,000 m2) maze. The Schulenberg Prairie at the Arboretum was one of the earliest prairie restoration projects in the Midwest, begun in 1962. It is one of the largest restored prairies in the Chicago suburban area. Three dozen cuttings from the old burr oak that had been in Lincoln Park Zoo will be grafted onto rootstocks at the Arboretum.The Arboretum offers an extensive nature-centered education program for children, families, school groups, scouts, and adults, including tree and restoration professionals. The Natural Areas Conservation Training (N-ACT) Program offers classroom and online courses in ecological restoration techniques. The Arboretum also offers credit courses through the Associated Colleges of the Chicago Area, a regional consortium.

WDCB (90.9 MHz is a non-commercial public FM radio station licensed to Glen Ellyn, Illinois, and serving the Chicago metropolitan area. It largely airs jazz programming and is owned by the College of DuPage. Most shows are locally-hosted but some select programs come from National Public Radio (NPR) and the Public Radio Exchange (PRX). WDCB is listener-supported and seeks donations on the air and on its website. Funding also comes from grants and corporate sponsorships. The studios are on Fawell Boulevard on the DuPage campus. WDCB has an effective radiated power (ERP) of 5,000 watts. The transmitter is off Fawell Boulevard at Briarcliff Boulevard in Wheaton. Programming can be heard on CAN TV channel 42 in Chicago. It is also simulcast on WRTE 90.7 FM on Chicago's west side.

The Village Links of Glen Ellyn is a public golf course located in Glen Ellyn, Illinois, a suburb of Chicago. Founded in 1967, it was the first publicly owned 18-hole golf course in DuPage County, Illinois. It has long been recognized as one of the top golf courses in the Chicago area. It was the host course for the PGA Tour's Western Open General Qualifying virtually every year from 1980 through 2006. It has hosted other high level golf events including the 1986 Illinois Open and multiple State Match Play Championships. It has hosted the 36-hole U.S. Open Sectional Qualifying five times (1985, 1991, 1995, 2005 and 2012). In 2005 it was the only golf course in the United States to host both a PGA Tour event qualifying and a U.S. Open Sectional Qualifying in the same season. The Village Links of Glen Ellyn has long been one of the leading golf courses in the United States in promoting environmental friendly management. It was the first public golf course in the world to become fully certified as a Wildlife Sanctuary by Audubon International. Golf Course Superintendent Timothy Kelly was recognized as the National Public Golf Course Environmental Steward of the Year three consecutive years in the 1990s. The Village Links of Glen Ellyn was one of the first golf courses to develop and implement a pace of play program. Its KEEP PACE program, created in 1979, is arguably the most successful program of its kind and has been adopted by hundreds of courses nationwide in some form or another. KEEP PACE encourages golfers to maintain their position with the group ahead, while traditional efforts focused on not slowing down the golfers in the group behind. The Village Links of Glen Ellyn has both a 9-hole course and an 18-hole course. The 18-hole course was extensively renovated in 2004. The golf course architect for that renovation, Garrett Gill of River Falls, Wisconsin, is the son of the Village Links original architect David Gill of St. Charles, Illinois. In 2013 the golf course clubhouse was expanded and a new restaurant and bar, Reserve 22, opened. Reserve 22 features a full-service restaurant and bar, and a 150-seat banquet facility.

The George Baker House is a historic residence in unincorporated Milton Township near Glen Ellyn, Illinois. The Greek Revival house features a limestone exterior on a stone foundation, and an asphalt roof. It was constructed for and designed by George Baker in 1847. It was listed on the National Register of Historic Places in 2010.

DuPage County ( doo-PAYJ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat is Wheaton.Known for its vast tallgrass prairies, DuPage County has become mostly developed and suburbanized, although some pockets of farmland remain in the county's western and northern parts. Located in the Rust Belt, the area is one of few in the region whose economy quickly became dependent on the headquarters of several large corporations due to its close proximity to Chicago. As quarries closed in the 1990s, land that was formerly used for mining and plants was converted into mixed-use, master-planned developments to meet the growing tax base. The county has a mixed socioeconomic profile and residents of Hinsdale, Naperville and Oak Brook include some of the wealthiest people in the Midwest. On the whole, the county enjoys above average median household income levels and low overall poverty levels when compared to the national average. In 2023, Niche ranked four DuPage municipalities (Clarendon Hills at #125, Naperville at #130, Hinsdale at #166, and Lisle at #280) amongst the best places to live in America.

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

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.

Area codes 630 and 331 are telephone area codes in the North American Numbering Plan (NANP) for portions of Chicago's near and far western suburbs, including the majority of DuPage County, Illinois. To the northwest, the numbering plan area (NPA) also includes a small portion of Cook County, including parts of Schaumburg, Streamwood and Hanover Park. To the west, Kane County is divided between area codes 847 and 224 in the north, including Elgin, and area codes 630 and 331 in the south, including Aurora. To the south, the northern part of Will County and a small part of southern Cook County, including the village of Burr Ridge and parts of the village of Lemont, are also included in the 630 and 331 area codes. To the southwest, the city of Yorkville, in exurban Kendall County, is included, as well. Area code 630 is the parent area code of the numbering plan area, created in a three-way area code split of area code 708 on August 3, 1996, with the southern suburbs keeping 708 and the northern suburbs receiving 847. Within a decade, 630 was close to exhaustion due to the growth of the Chicago suburbs and the proliferation of cell phones and pagers. On October 7, 2007, area code 331 began overlaying area code 630, making ten-digit dialing mandatory in the area. The Illinois side of the Chicago area–312/773/872, 708, 847/224, 630/331 and portions of 815/779–is one of the largest local calling areas in the United States; with few exceptions, no long-distance charges are applied from one portion of the metro area to another.

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.