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Chicago

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Chicago
NameChicago
Nickname"The Windy City"; "Second City"
CountryUnited States
StateIllinois
Founded1833
Area km2606.1
Population2,746,388 (2020)
Density km24,590
MayorBrandon Johnson

Chicago is a major city in the United States located on the southwestern shore of Lake Michigan. It is a regional hub for finance, transportation, culture, and industry, with a skyline defined by skyscrapers such as the Willis Tower and the John Hancock Center. The city has been a focal point in the histories of United States, Illinois, Great Lakes, and Midwestern United States development. Chicago's institutions include major universities, museums, and professional sports franchises that have influenced national trends.

History

Chicago developed rapidly after its 1833 incorporation amid competing interests including the Illinois and Michigan Canal, the Erie Canal-linked trade networks, and frontier migration. The city's growth accelerated with the arrival of the Illinois Central Railroad, the Galena and Chicago Union Railroad, and later the Chicago and North Western Railway, making it a transportation nexus for the Midwestern United States. The Great Chicago Fire of 1871 devastated large areas, prompting an international rebuilding effort that involved architects from the Chicago School such as Louis Sullivan and firms like Burnham and Root. The 1893 World's Columbian Exposition showcased innovations by figures associated with Daniel Burnham and influenced urban planning movements including the City Beautiful movement. Industrial expansion linked Chicago to national networks including the Meatpacking industry centralized around Union Stock Yards and to labor struggles exemplified by the Pullman Strike and organizations like the American Federation of Labor. In the 20th century, figures such as Jane Addams and institutions like the Hull House shaped social reform, while gangs and organized crime featured in accounts involving Al Capone during the Prohibition in the United States era. Postwar developments included suburbanization tied to the Interstate Highway System and political machines led by the Cook County Democratic Party.

Geography and Climate

Chicago lies on the southwestern shore of Lake Michigan at the nexus of the Great Lakes basin and the Mississippi River watershed, influencing its role in inland water trade tied to the Saint Lawrence Seaway and the Illinois Waterway. Neighborhoods spread from the downtown Loop out to areas like Hyde Park, Wicker Park, and Englewood. The city's topography is largely flat due to glacial deposits dating from the Wisconsin glaciation, and its shoreline and river channels were extensively modified by engineers tied to projects like the Chicago River reversal overseen historically by the Chicago Sanitary District (now the Metropolitan Water Reclamation District of Greater Chicago). The climate is classified as humid continental under the Köppen climate classification, producing cold winters influenced by Arctic air masses and lake-effect snow, and warm summers moderated by Lake Michigan. Severe weather episodes have included tornadoes affecting the Midwest tornado outbreaks and blizzards that have impacted urban services.

Demographics

The metropolitan area anchors a diverse population with large communities of descendants from Germany, Poland, Ireland, Italy, and Scotland from 19th-century immigration, alongside significant 20th-century migrations from the Great Migration of African Americans from the Southern United States. Later waves included immigrants from Mexico, the Philippines, India, China, and countries across Central America and Eastern Europe. Neighborhood cultural institutions include the Polish Museum of America and the National Museum of Mexican Art. Religious life spans institutions such as the Roman Catholic Archdiocese of Chicago, the First Unitarian Church of Chicago, and various synagogues and mosques. Educational attainment is shaped by universities including University of Chicago, Northwestern University, and Loyola University Chicago, which attract domestic and international students.

Economy

Chicago's economy combines financial services centered in the Chicago Loop with commodity trading on exchanges such as the Chicago Board of Trade and the Chicago Mercantile Exchange. Corporate headquarters for firms like Boeing (historically), McDonald's Corporation, United Airlines, and Exelon Corporation have anchored sectors including manufacturing, aviation, energy, and foodservice. The Port of Chicago and rail hubs tied to the BNSF Railway and Canadian National Railway support freight movement, while trade is further connected to the O'Hare International Airport complex. Professional services involve law firms, accounting networks, and consultancies with ties to national markets, and the city hosts conventions at venues such as McCormick Place.

Culture and Arts

Chicago's cultural institutions include museums like the Art Institute of Chicago, the Field Museum, and the Museum of Science and Industry, and performance venues such as the Chicago Theatre and the Lyric Opera of Chicago. The city is a birthplace and incubator for musical forms including Chicago blues, Chicago jazz, and the House music scene associated with neighborhoods and clubs like those frequented by DJs such as Frankie Knuckles. Literary and architectural movements involved figures like Carl Sandburg, Gwendolyn Brooks, and structural innovations by Mies van der Rohe. Sports franchises including the Chicago Cubs, Chicago White Sox, Chicago Bulls, and Chicago Bears play significant cultural roles, with venues such as Wrigley Field and Soldier Field. Festivals such as the Taste of Chicago and the Chicago Jazz Festival draw national audiences.

Government and Infrastructure

Municipal administration operates from City Hall in the Loop with elected officials including the Mayor of Chicago and alderpersons representing wards. County-level functions are managed by Cook County institutions such as the Cook County Board of Commissioners and the Cook County Circuit Court. Public agencies overseeing utilities and services include the Chicago Transit Authority, the Metropolitan Water Reclamation District of Greater Chicago, and the Chicago Public Library. Law enforcement and legal systems feature the Chicago Police Department and offices like the Cook County State's Attorney. The region participates in intergovernmental initiatives with entities such as the Metropolitan Planning Council and federal partnerships tied to agencies like the United States Environmental Protection Agency for projects on waterways and air quality.

Transportation and Urban Planning

Chicago's transportation network integrates hubs including O'Hare International Airport, Midway International Airport, Union Station, and an extensive commuter rail system operated by Metra. Rapid transit is provided by the Chicago "L" system, connecting the Loop with neighborhoods and suburbs. The street grid and boulevard plans were influenced by planners such as Daniel Burnham and movements tied to the City Beautiful movement, while modern zoning and redevelopment efforts reference statutes and plans enacted by the Chicago Plan Commission. Major thoroughfares and expressways like the Kennedy Expressway and the Dan Ryan Expressway link to the interstate network, and initiatives such as the Chicago Riverwalk project and transit-oriented developments aim to balance waterfront access with mixed-use growth. Amtrak services, freight corridors, and multimodal terminals continue to position the city as a national logistics and passenger hub.

Category:Cities in Illinois