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City of Chicago

Chicago, Illinois
City
City of Chicago
Clockwise from top: Downtown Chicago, the Chicago Theatre, the 'L', Navy Pier, Millennium Park, the Field Museum, and Willis Tower.
Flag of Chicago, Illinois
Flag
Official seal of Chicago, Illinois
Seal
Etymology: Miami-Illinois: shikaakwa ("wild onion" or "wild garlic")
Potawatomi: Gaa-zhigaagwanzhikaag
Nickname(s): Windy City, Chi-Town, Second City, City of Big Shoulders
(for more, see full list)
Motto: Latin: Urbs in Horto (City in a Garden), I Will
Location in Cook County and the state of Illinois.
Location in Cook County and the state of Illinois.
Chicago is located in the US
Chicago
Chicago
Location in the United States
Coordinates: 41°50′13″N 87°41′05″W / 41.83694°N 87.68472°W / 41.83694; -87.68472Coordinates: 41°50′13″N 87°41′05″W / 41.83694°N 87.68472°W / 41.83694; -87.68472
Country  United States
State  Illinois
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)
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 9,512,999 (3rd)
 • CSA 9,882,634 (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.cityofchicago.org

Chicago (Listeni/ʃˈkɑːɡ/ or /ʃˈkɔːɡ/), officially the City of Chicago, is the third-most populous city in the United States. With over 2.7 million residents, it is also the most populous city in both the state of Illinois and the Midwestern United States. It is 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 has been called a global architecture capital. In terms of wealth and economy, Chicago is considered one of the most important business centers in the world.


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