chicago

Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States. Located on the western shore of Lake Michigan, it is the... Wikipedia

Counties: Cook (small part of Chicago O'Hare Airport in DuPage)
Settled: c. 1780
Incorporated (town): August 12, 1833
Incorporated (city): March 04, 1837
Founded by: Jean Baptiste Point du Sable
• Type: Mayor–council
• Body: Chicago City Council
• Mayor: Brandon Johnson (D)
• City Clerk: Anna Valencia (D)
• City Treasurer: Melissa Conyears Ervin (D)
Population (2020): 2,746,388
• Estimate (2025): 2,731,585
• Rank: 5th in North America, 3rd in the United States, 1st in Illinois
• Urban: 8,671,746 (US: 3rd)
• Metro: 9,408,576 (US: 3rd)
Demonym(s): Chicagoan
Time zone: CST (UTC−06:00)
• Summer (DST): CDT (UTC−05:00)
ZIP Code prefixes: 606xx, 607xx, 608xx
Area codes: 312, 773, 872
FIPS code: 17-14000
GNIS feature ID: 0428803
Climate: Hot-summer humid continental climate (Dfa)
Website: chicago.gov
Data source: DuckDuckGo