Chicago, IL
| Chicago, Illinois | |||
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| City | |||
| City of Chicago | |||
Clockwise from top: Downtown Chicago, the Chicago Theatre, the 'L', Navy Pier, Millennium Park, the Field Museum, and Willis Tower.
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| Etymology: Miami-Illinois: shikaakwa ("wild onion" or "wild garlic") Potawatomi: Gaa-zhigaagwanzhikaag |
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| Nickname(s): Windy City, Chi-Town, Second City, City of Big Shoulders (for more, see full list) |
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| Motto: Latin: Urbs in Horto (City in a Garden), I Will | |||
 Location in Cook County and the state of Illinois. |
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 Chicago
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| Coordinates: 41°50′13″N 87°41′05″W / 41.83694°N 87.68472°WCoordinates: 41°50′13″N 87°41′05″W / 41.83694°N 87.68472°W | |||
| Country |  United States |
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| State |
 Illinois
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| Counties | Cook and DuPage | ||
| Settled | 1780s | ||
| Incorporated (town) | August 12, 1833 | ||
| Incorporated (city) | March 4, 1837 | ||
| Founded by | Jean Baptiste Point du Sable | ||
| Named for |
Miami-Illinois: shikaakwa (wild onion or wild garlic) |
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| Government | |||
| • Type | Mayor–council | ||
| • Body | Chicago City Council | ||
| • Mayor | Rahm Emanuel (D) | ||
| • City Clerk | Anna Valencia (D) | ||
| • City Treasurer | Kurt Summers, Jr. (D) | ||
| Area | |||
| • City | 234.0 sq mi (606 km2) | ||
| • Land | 227.3 sq mi (589 km2) | ||
| • Water | 6.9 sq mi (18 km2) 3.0% | ||
| • Urban | 2,122.8 sq mi (5,498 km2) | ||
| • Metro | 10,874 sq mi (28,160 km2) | ||
| Elevation(mean) | 594 ft (181 m) | ||
| Highest elevation – near Blue Island |
672 ft (205 m) | ||
| Lowest elevation – at Lake Michigan |
578 ft (176 m) | ||
| Population (2010) | |||
| • City | 2,695,598 | ||
| • Estimate (July 1, 2015) | 2,720,546 | ||
| • Rank | 3rd, U.S. | ||
| • Density | 11,864.4/sq mi (4,447.4/km2) | ||
| • Metro | 9,551,031 (3rd) | ||
| • CSA | 9,923,358 (US: 3rd) | ||
| Demonym(s) | Chicagoan | ||
| Time zone | Central (UTC-6) | ||
| • Summer (DST) | Central (UTC-5) | ||
| ZIP Code Prefixes | 606xx, 607xx, 608xx | ||
| Area codes | 312/872 and 773/872 | ||
| FIPS code | 17-14000 | ||
| GNIS feature ID | 0428803 | ||
| Website | www |
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Chicago (
i/ʃᵻˈkɑːɡoʊ/ or /ʃᵻˈkɔːɡoʊ/), officially the City of Chicago, is the third-most populous city in the United States. With over 2.7 million residents, it is the most populous city in the state of Illinois and the Midwestern United States, and the county seat of Cook County. The Chicago metropolitan area, often referred to as Chicagoland, has nearly 10 million people and is the third-largest in the U.S.
Chicago was incorporated as a city in 1837, near a portage between the Great Lakes and the Mississippi River watershed, and grew rapidly in the mid-nineteenth century. Positioned along Lake Michigan, the city is an international hub for finance, commerce, industry, technology, telecommunications, and transportation: O'Hare International Airport is the second-busiest airport in the world when measured by aircraft traffic; the region also has the largest number of U.S. highways and rail road freight. In 2012, Chicago was listed as an alpha global city by the Globalization and World Cities Research Network, and ranked seventh in the world in the 2014 Global Cities Index. Chicago has the third-largest gross metropolitan product in the United States—about $640 billion according to 2015 estimates. The city has one of the world's largest and most diversified economies with no single industry employing more than 14% of the workforce.
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