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 (2024):  2,721,308
• • 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
• Website:  chicago.gov
• Data source:  DuckDuckGo