| Chicago |
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| City | | City of Chicago |  | | Etymology: Miami-Illinois: shikaakwa ("wild onion" or "wild garlic")
Potawatomi: Gaa-zhigaagwanzhikaag | Nickname(s): Windy City, Chi-Town, City of Broad Shoulders, Second City
(for more, see full list) | | Motto(s): Latin: Urbs in Horto (City in a Garden), I Will | 
Location of Chicago in Cook County and DuPage County, Illinois | Location in the United States | Coordinates:  41°50′13″N 87°41′05″W[1] | | Country |  United States |
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| State |  Illinois |
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| Counties | Cook, DuPage |
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| Settled | circa 1780 |
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| Incorporated (town) | August 12, 1833 |
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| Incorporated (city) | March 4, 1837 |
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| Founded by | Jean Baptiste Point du Sable |
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| Named for | Miami-Illinois: shikaakwa
(wild onion or wild garlic) |
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| Government |
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| • Type | Mayor–council |
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| • Body | Chicago City Council |
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| • Mayor | Rahm Emanuel (D) |
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| • City Clerk | Anna Valencia (D) |
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| • City Treasurer | Kurt Summers Jr. (D) |
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| Area[2] |
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| • City | 234.14 sq mi (606.42 km2) |
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| • Land | 227.34 sq mi (588.81 km2) |
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| • Water | 6.80 sq mi (17.62 km2) 3.0% |
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| • Urban | 2,122.8 sq mi (5,498 km2) |
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| • Metro | 10,874 sq mi (28,160 km2) |
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| Elevation[1] (mean) | 594 ft (181 m) |
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Highest elevation
– near Blue Island | 672 ft (205 m) |
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Lowest elevation
– at Lake Michigan | 578 ft (176 m) |
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| Population (2010)[4] |
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| • City | 2,695,598 |
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| • Estimate (2016)[5] | 2,704,958 |
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| • Rank | 3rd, U.S. |
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| • Density | 11,898.29/sq mi (4,593.95/km2) |
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| • Metro | 9,512,999 (3rd)[3] |
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| • CSA | 9,882,634 (US: 3rd)[3] |
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| Demonym(s) | Chicagoan |
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| Time zone | Central (UTC-6) |
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| • Summer (DST) | Central (UTC-5) |
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| ZIP Code Prefixes | 606xx, 607xx, 608xx |
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| Area codes | 312/872 and 773/872 |
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| FIPS code | 17-14000 |
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| GNIS feature ID | 0428803 |
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| Website | www.cityofchicago.org |
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