Chicago

Chicago, officially the City of Chicago, is the most populous city in the U.S. state of Illinois, and the third-most populous city in the United States, following New York... Wikipedia

  • Country:  United States
  • State:  Illinois
  • Counties:  Cook, 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:  Lori Lightfoot (D)
  • • City Clerk:  Anna Valencia (D)
  • • City Treasurer:  Melissa Conyears-Ervin (D)
  • Population (2020):  2,746,388
  • • Rank:  3rd in the United States, 1st in Illinois
  • • Metro:  9,618,502 (3rd)
  • Demonym(s):  Chicagoan
  • Time zone:  CST (UTC−06:00)
  • • Summer (DST):  CDT (UTC−05:00)
  • ZIP code prefixes:  606xx, 607xx, 608xx
  • Area codes:  312/872, 773/872
  • FIPS code:  17-14000
  • GNIS feature ID:  0428803
  • International airports:  O'Hare Airport, Midway Airport, Rockford Airport
  • Website:  chicago.gov
  • Data source:  DuckDuckGo