Cook County , Illinois

Cook County: County in Illinois, United States

Cook County locator map
Location of Cook County on Illinois map.

About

Cook County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 5,194,675 and a population density of 1,227 people per km². After 10 years in 2020 county had an estimated population of 2,020 inhabitants. Its county seat is Chicago. The county was created 190 years ago in 1831.

Daley Plaza 060716 image
Daley Plaza 060716
Daley Plaza 060716 image

Geography

Cook County is located at 41°53'43"N 87°38'46"W (41.8954000, -87.6461600). It has 6 neighbors: DuPage County, McHenry County, Will County, Lake County, Porter County and Berrien County.

Cook County map

The largest city of Cook County is Markham with a population of 328,966. Other cities include, Niles population 102,186, Evanston population 72,683, Des Plaines population 58,179 and Berwyn population 53,701. See all Cook County cities & populated places.

Cook County Quick Facts

Population : 5,108,284 (2020)
Country : United States of America
State : Illinois (United States)
Different from : Cooke County, Cook County, Cook County
Twitter username : cookcountygov
Area : 4235 km2
Official name : Cook County
Water as percent of area : 42.2%
Land as percent of area : 57.8%
Named for : Daniel Pope Cook
Altitude : 3,117 feet / 950 meters
Capital : Chicago
Establishment : January 01, 1831
Time Zone : UTC−05:00, UTC−06:00, Central Time Zone
Local time : 18:45:04 (19th September 2021)
Density : 1,206 Pop. per km² as of 2020
Population growth : -1.69% (2010-2020)

Cook County has 6 neighbours.

  • Chicago
  • Maywood
  • Barrington
  • Glenview
  • Bridgeview
  • Oak Lawn

Demographics

According to census records, the population of Cook County decreased by 1.69% in 10 years.

Year Population % Change Method
2010 5,194,675 - census
2011 5,219,780 0.48% estimation process
2012 5,239,351 0.37% estimation process
2013 5,252,875 0.26% estimation process
2014 5,254,675 0.03% estimation process
2015 5,244,088 -0.2% estimation process
2016 5,224,272 -0.38% estimation process
2017 5,200,821 -0.45% estimation process
2018 5,171,960 -0.56% estimation process
2019 5,150,233 -0.42% estimation process
2020 5,108,284 -0.82% estimation process

Comte de Cook, Comté de Cook, Condado de Cook, Condado han Cook, Contea di Cook, Cook, Cook Comitatus, Cook Kun, Cook Kūn, Cook konderria, Cooki maakond, Hrabstwo Cook, Kuk, Kuk srjan, Okrug Kuk, Quan Cook, Quận Cook, koka ka'unti, ku ke xian, kukku jun, mhwz qwq, mqatʿt kwk, Кук, Округ Кук, Կուկ շրջան, מחוז קוק, קוק קאונטי, مقاطعة كوك, کک کاؤنٹی, کک کاؤنٹی، الینوائے, কোক কাউন্টি, クック郡, 庫克縣

People born in Cook County (29)

People born in Cook County, including actor Christopher Denham, journalist Lon Grahnke, US composer, Associate Professor of Composition at University of Colorado Boulder Carter Pann, you can see a list of people who born in Cook County.

  • Gerald Nicosia (American literary critic) he was born in 18/11/1949
  • James Dewar (American baker, inventor of the Twinkie) he was born in 05/02/1897
  • Anne Hopkins Aitken (American Zen Buddhist) she was born in 08/02/1911
  • Fred Noonan (American flight navigator, sea captain, and aviation pioneer) he was born in 04/04/1893
  • Eric Knott (American baseball player) he was born in 23/09/1974
  • Janet Ayer Fairbank (Novelist, suffragette) she was born in 07/06/1878
  • John Fitzgerald (American soldier, born in Cook County, Illinois) he was born in 01/01/1817
  • John Warden (Union Army Medal of Honor recipient) he was born in 11/06/1841
  • Morris N Beitman (Author, Publisher and Radio Instructor) he was born in 01/12/1911
  • Robert Bandurski he was born in 11/05/1924
  • J. A. Konrath (American writer) he was born in 01/03/1970
  • Edward Burkhardt (American businessman) he was born in 23/07/1938
  • Connor Carrick (American ice hockey player) he was born in 13/04/1994
  • Chester Stranczek (American politician) he was born in 19/11/1929
  • Lynnette Love (American taekwondo practitioner) she was born in 21/09/1957
  • Ethelbert Stewart he was born in 01/01/1857
  • Al Hoffman, Jr. (American businessperson) he was born in 27/03/1934
  • Zach Monaghan (American basketball player) he was born in 01/12/1992

Other places with the same name (3)

Cook County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in Cook County.

City Name Population Title
Markham 328,966 City in Cook County, Illinois, United States
Niles 102,186 City in Trumbull County, Ohio
Cicero 79,727 Town in Illinois
Arlington Heights 75,101 Village in Cook County, Illinois, United States; suburb of Chicago, Illinois
Evanston 72,683 Suburban city in Cook County, Illinois, United States
Schaumburg 72,049 Large village located in Cook County in Illinois, USA
Palatine 66,830 Village in Cook County, Illinois, United States
Skokie 62,404 Village in Cook County, Illinois, United States
Des Plaines 58,179 City in Cook County, Illinois
Orland Park 57,347 Village in Illinois
Tinley Park 55,221 Village located in Cook County, Illinois, United States
Oak Lawn 54,376 Village in Illinois, United States of America
Berwyn 53,701 City in Illinois
Mount Prospect 53,299 Village in Elk Grove and Wheeling Townships in Cook County, Illinois, United States
Oak Park 51,852 Village in Cook County, Illinois, United States; suburb of Chicago, Illinois
Hoffman Estates 50,495 Northwestern suburb of Chicago in Illinois, United States

Illinois Other Counties (more counties)

County Name Population Title
Chicago 2,677,643 City and county seat of Cook County, Illinois, United States
DuPage County 917,481 County in Illinois, United States
Lake County 693,593 County in Oregon, United States
Will County 688,726 County in Illinois, United States
Kane County 531,010 County in southern Utah, United States
Markham 328,966 City in Cook County, Illinois, United States
McHenry County 305,888 County in Illinois, United States
Winnebago County 281,295 County in Illinois, United States
Madison County 262,635 County in Montana, United States
Saint Clair County 258,046 The County of St.
Champaign County 209,192 County in Illinois, United States
Aurora 196,383 City in Kane County, Illinois, United States
Sangamon County 193,882 County in Illinois, United States
Peoria County 177,652 County in Illinois, United States of America
McLean County 171,256 County in North Dakota, United States
Naperville 147,986 City in DuPage and Will counties in Illinois, United States