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 9 years in 2019 county had an estimated population of 5,150,233 inhabitants. Its county seat is Chicago. The county was created 190 years ago in 1831.

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.

Daley Plaza 060716 image
Daley Plaza 060716

The largest city of Cook County is Markham with a population of 328,966. Other cities include, Evanston population 73,473, Des Plaines population 58,899, Berwyn population 54,391 and Hoffman Estates population 50,932. See all Cook County cities & populated places.

Cook County map

Cook County Quick Facts

Population : 5,150,233 (2019)
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 : 09:12:19 (13th June 2021)
Density : 1,216 Pop. per km² as of 2019
Population growth : -0.86% (2010-2019)

Cook County has 6 neighbours.

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

Demographics

According to census records, the population of Cook County decreased by 0.86% in 9 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

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.

Other places with the same name (2)

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
Elk Grove 91,251 Township in Cook County, Illinois
Cicero 80,796 Town in Illinois
Arlington Heights 75,101 Village in Cook County, Illinois, United States; suburb of Chicago, Illinois
Evanston 73,473 Suburban city in Cook County, Illinois, United States
Schaumburg 72,887 Large village located in Cook County in Illinois, USA
Palatine 67,482 Village in Cook County, Illinois, United States
Skokie 62,700 Village in Cook County, Illinois, United States
Des Plaines 58,899 City in Cook County, Illinois
Orland Park 57,857 Village in Illinois
Tinley Park 55,773 Village located in Cook County, Illinois, United States
Oak Lawn 55,022 Village in Illinois, United States of America
Berwyn 54,391 City in Illinois
Mount Prospect 53,719 Village in Elk Grove and Wheeling Townships in Cook County, Illinois, United States
Oak Park 52,381 Village in Cook County, Illinois, United States; suburb of Chicago, Illinois
Hoffman Estates 50,932 Northwestern suburb of Chicago in Illinois, United States

Illinois Other Counties (more counties)

County Name Population Title
Illinois 12,671,821 State of the United States of America
Chicago 2,693,976 City and county seat of Cook County, Illinois, United States
DuPage County 922,921 County in Illinois, United States
Lake County 696,535 County in Oregon, United States
Will County 690,743 County in Illinois, United States
Kane County 532,403 County in southern Utah, United States
Markham 328,966 City in Cook County, Illinois, United States
McHenry County 307,774 County in Illinois, United States
Winnebago County 282,572 County in Illinois, United States
Madison County 262,966 County in Montana, United States
Saint Clair County 259,686 The County of St.
Champaign County 209,689 County in Illinois, United States
Sangamon County 194,672 County in Illinois, United States
Peoria County 179,179 County in Illinois, United States of America
McLean County 171,517 County in North Dakota, United States
Rockford 169,980 County seat of Winnebago County, Illinois, United States
Daley Plaza 060716 image

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