Chicago
City
City of Chicago
Clockwise from top: Downtown Chicago, the Chicago Theatre, the 'L', Navy Pier, Millennium Park, the Field Museum, and Willis Tower
Clockwise from top: Downtown Chicago, the Chicago Theatre, the 'L'Navy PierMillennium Park, the Field Museum, and Willis Tower
Flag of Chicago
Flag
Official seal of Chicago
Seal
Etymology: Miami-Illinoisshikaakwa ("wild onion" or "wild garlic")
PotawatomiGaa-zhigaagwanzhikaag
Nickname(s): Windy City, Chi-Town, City of Broad Shoulders, Second City
(for more, see full list)
Motto(s): LatinUrbs in Horto (City in a Garden), I Will
Location of Chicago in Cook County and DuPage County, Illinois
Location of Chicago in Cook County and DuPage County, Illinois
Chicago is located in the US
Chicago
Chicago
Location in the United States
Coordinates: 41°50′13″N 87°41′05″W[1]
Country United States
State Illinois
CountiesCookDuPage
Settledcirca 1780
Incorporated (town)August 12, 1833
Incorporated (city)March 4, 1837
Founded byJean Baptiste Point du Sable
Named forMiami-Illinoisshikaakwa
(wild onion or wild garlic)
Government
 • TypeMayor–council
 • BodyChicago City Council
 • MayorRahm Emanuel (D)
 • City ClerkAnna Valencia (D)
 • City TreasurerKurt Summers Jr. (D)
Area[2]
 • City234.14 sq mi (606.42 km2)
 • Land227.34 sq mi (588.81 km2)
 • Water6.80 sq mi (17.62 km2)  3.0%
 • Urban2,122.8 sq mi (5,498 km2)
 • Metro10,874 sq mi (28,160 km2)
Elevation[1] (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)[4]
 • City2,695,598
 • Estimate (2016)[5]2,704,958
 • Rank3rd, U.S.
 • Density11,898.29/sq mi (4,593.95/km2)
 • Metro9,512,999 (3rd)[3]
 • CSA9,882,634 (US: 3rd)[3]
Demonym(s)Chicagoan
Time zoneCentral (UTC-6)
 • Summer (DST)Central (UTC-5)
ZIP Code Prefixes606xx, 607xx, 608xx
Area codes312/872 and 773/872
FIPS code17-14000
GNIS feature ID0428803
Websitewww.cityofchicago.org