Chicago (Chicago, Illinois – Overview)
Chicago is the largest city in the U.S. state of Illinois and the third-largest city in the United States after New York and Los Angeles. It is located along the southwestern shore of Lake Michigan. The city was incorporated in 1837, rapidly growing due to its strategic location as a transportation and trade hub between the eastern and western United States. By the late 19th century, Chicago became one of the nation’s most important industrial, financial, and railroad centers.
Chicago played a major role in American economic development, especially after the Great Chicago Fire of 1871. The fire destroyed much of the central business district, but the city rebuilt quickly. This rebuilding period led to innovations in architecture, including the early skyscraper designs that influenced modern urban development. Today, Chicago is recognized internationally for its skyline featuring Willis Tower (formerly Sears Tower), John Hancock Center, and numerous architecturally significant buildings.
The city is composed of 77 officially designated community areas and hundreds of unique neighborhoods. Major cultural attractions include Millennium Park, Navy Pier, the Art Institute of Chicago, and the Museum Campus (home to the Field Museum, Shedd Aquarium, and Adler Planetarium). Chicago is also known for its theater scene, deep-dish pizza, blues and jazz music heritage, and professional sports teams such as the Chicago Cubs, Chicago White Sox, Chicago Bears, Chicago Bulls, and Chicago Blackhawks.
Chicago has one of the most diverse economies in the United States. Key industries include finance, logistics, manufacturing, technology, healthcare, and higher education. It is home to O’Hare International Airport—consistently one of the busiest airports in the world—and serves as a central hub for national and international transportation.
Chicago’s population exceeds 2.6 million residents, with the broader metropolitan area reaching nearly 10 million people. The city is known for its cultural diversity, strong academic institutions, lakefront parks, and ongoing influence in business, arts, politics, and architecture.