Chicago, officially the City of Chicago, is the most populous city in the U.S. state of Illinois, and the third most populous city in the United States, following New York and Los Angeles. With an estimated population of 2,693,976 in 2019, it is also the most populous city in the Midwestern United States and the fifth most populous city in North America. Chicago is the county seat of Cook County, the second most populous county in the U.S., while a small portion of the city's O'Hare Airport also extends into DuPage County. Chicago is the principal city of the Chicago metropolitan area, defined as either the U.S. Census Bureau's metropolitan statistical area or the combined statistical area, often called Chicagoland. It constitutes the third most populous urban area in the United States after New York City and Los Angeles.
| Counties | Cook, DuPage |
| Settled | circa 1780 |
| Incorporated (town) | August 12, 1833 |
| Incorporated (city) | March 4, 1837 |
| Founded by | Jean Baptiste Point du Sable |
| • Type | Mayor–council |
| • Body | Chicago City Council |
| • Mayor | Lori Lightfoot (D) |
| • City Clerk | Anna Valencia (D) |
| • City Treasurer | Melissa Conyears-Ervin (D) |
| • Water | 3.0% |
| Population (2010) | 2,695,598 |
| • Estimate (2019) | 2,693,976 |
| • Rank | 3rd, U.S. |
| • Urban | 8,667,303 |
| • Metro | 9,533,040 (3rd) |
| • CSA | 9,901,711 (US: 3rd) |
| Demonym(s) | Chicagoan |
| Time zone | Central (UTC−06:00) |
| • Summer (DST) | Central (UTC−05:00) |
| ZIP Code Prefixes | 606xx, 607xx, 608xx |
| Area codes | 312/872 and 773/872 |
| FIPS code | 17-14000 |
| GNIS feature ID | 0428803 |
| Major Airports | O'Hare Airport, Midway Airport, Rockford Airport |
About Chicago
Six-time Academy Award winning film, including Best Picture, set in 1920s Chicago that centers on two murderesses who await trial in jail.
Achievement of Chicago
The movie was based on a Broadway musical from 1975. Catherine Zeta-Jones won an Oscar as well as BAFTA Award, among others, for her performance.
Top Facts You Did Not Know About Chicago
Chicago Category.. Chicago area water quality - Ever since the village of Chicago, later changed to City of Chicago in 1857, was formed in 1834 for its unique geography and accessibility to one of the largest bodies of fresh water, the Great Lakes, it has had to deal with a number of issues concerning water quality to deal with the changes in.... Chicago Wilderness - Chicago Wilderness is a regional alliance of more than 250 different organizations that work together to improve the quality of life of the individuals and the many other species living in the Chicago area.. Gentrification of Chicago - The Gentrification of Chicago is a process that has altered the demographic composition of some neighborhoods in Chicago usually by decreasing the percentage of low-income minority residents and increasing the percentage of typically white, higher-income residents.. National Register of Historic Places listings in Central Chicago - Currently there are 124 properties listed on the National Register of Historic Places in Central Chicago, out of more than 350 listings in the City of Chicago.. National Register of Historic Places listings in North Side Chicago - There are 96 sites in the National Register of Historic Places listings in North Side Chicago — of more than 350 listings within the City of Chicago, in Cook County, Illinois.. National Register of Historic Places listings in West Side Chicago - There are 68 sites in the National Register of Historic Places listings in West Side, Chicago, out of more than 350 listings in the City of Chicago.. Cities in DuPage County, Illinois.. Cities in Cook County, Illinois.. Inland port cities and towns of the United States.. County seats in Illinois.. Cities in Illinois.
