Cook County, Illinois

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Cook County, Illinois
County
The century-old, neoclassical County and City Hall building (left) in the Chicago Loop houses the County Board chambers and administrative offices. The Chicago Picasso stands in front of Daley Center, the home of Cook County Circuit Court.
The century-old, neoclassical County and City Hall building (left) in the Chicago Loop houses the County Board chambers and administrative offices. The Chicago Picasso stands in front of Daley Center, the home of Cook County Circuit Court.
Map of Illinois showing Cook County
Map of Illinois showing Cook County
Illinois's location in the United States
Illinois's location in the United States
Coordinates: 41°48′N 87°43′W / 41.800°N 87.717°W / 41.800; -87.717Coordinates: 41°48′N 87°43′W / 41.800°N 87.717°W / 41.800; -87.717
Country United States
State Illinois
Region Northern Illinois
Metro area Chicago Metropolitan
Incorporated January 15, 1831
Named for Daniel Cook
County seat Chicago
Largest city Chicago
Incorporated municipalities
Government
 • Type County
 • Body Board of Commissioners
 • Board President Toni R. Preckwinkle (D)
 • County Board 17 commissioners
Area
 • County 1,635 sq mi (4,230 km2)
 • Land 945 sq mi (2,450 km2)
 • Water 690 sq mi (1,800 km2)
 • Metro 10,874 sq mi (28,160 km2)
Area rank 6th largest county in Illinois
Highest elevation[1][2] 950 ft (290 m)
Lowest elevation[1][3] 580 ft (180 m)
Population (2010)
 • County 5,194,675
 • Estimate (2015) 5,238,216
 • Rank 1st largest county in Illinois
2nd largest county in U.S.
 • Density 5,530/sq mi (2,140/km2)
 • Metro 9,522,434
Time zone Central (UTC-6)
 • Summer (DST) Central (UTC-5)
ZIP Code prefixes 600xx thru 608xx
Area codes 224/847, 312/872, 773/872, 708
Congressional districts 1st, 2nd, 3rd, 4th, 5th, 6th, 7th,
8th, 9th 10th and 11th
FIPS code 17-031
GNIS feature ID 1784766
Interstates

I-55.svg I-57.svg I-80.svg I-88.svg 27px I-90.svg I-94.svg I-190.svg I-290.svg I-294.svg I-355.svg


U.S. Routes

US 6.svg US 12.svg US 14.svg US 20.svg US 30.svg US 34.svg US 41.svg US 45.svg US 66 (historic).svg


State Routes

Illinois 1.svg Illinois 7.svg Illinois 19.svg Illinois 21.svg Illinois 25.svg Illinois 38.svg Illinois 43.svg Illinois 50.svg Illinois 53.svg Illinois 56.svg Illinois 58.svg Illinois 59.svg Illinois 62.svg Illinois 64.svg Illinois 68.svg Illinois 72.svg Illinois 83.svg Illinois 110.svg Illinois 171.svg Illinois 390.svg Illinois 394.svg


Airports

Chicago O'Hare International
Chicago Midway International
Chicago Executive
Lansing Municipal
Schaumburg Regional


Waterways

Lake Michigan – Chicago River
Chicago Sanitary and Ship Canal
Calumet River – Des Plaines River
North Shore Channel


Amtrak stations

Chicago Union Station
Glenview – Homewood
La Grange – Summit


Public transit Chicago Transit Authority (CTA)
Metra – Pace – South Shore Line
Website www.cookcountyil.gov

Cook County is a county in the American state of Illinois. Chicago is the county seat of Cook County. Los Angeles County, California is the only county with a higher population than Cook County.

About 5,231,000 people live in Cook County.[4] This is 40.6 percent of all the people who live in Illinois. Cook County's population is more than the population of 29 U.S. states. More people live in Cook County than in the seven smallest U.S. states combined. There is a tax on canned beverages in Cook County.[5]

References[change | change source]

  1. 1.0 1.1 "Lowest and Highest Points in Cook County". Illinois State Geological Survey. Retrieved 2016-11-30. Greater than 950 ft max and Less than 580 ft min 
  2. United States Geological Survey. Streamwood Quadrangle – Illinois – Cook Co. [map], 1:24,000, 7.5-Minute Series (Topographic). (2013)
  3. United States Geological Survey. Chicago Loop Quadrangle – Illinois – Cook Co. [map], 1:24,000, 7.5-Minute Series (Topographic). (2013)
  4. "Cook County QuickFacts". US Census Bureau. Retrieved 22 June 2013. 
  5. County Population Estimates

Other websites[change | change source]

Media related to Cook County, Illinois at Wikimedia Commons