Cook County, Administrative county in Illinois, United States
Cook County extends across 1,635 square miles, including both urban zones and water bodies, with Chicago serving as its administrative center.
The county formation occurred on January 15, 1831, named after Daniel Pope Cook, the first Attorney General and second representative of Illinois in Congress.
The population of 5.2 million inhabitants represents numerous ethnic communities, with substantial White, African American, and Hispanic populations forming distinct neighborhoods.
The Cook County Board of Commissioners manages public services through 135 municipalities, including 23 cities and 111 villages across the territory.
The county courthouse processes over 1.2 million cases annually, operating the largest single-site detention facility in the United States.
Location: Illinois
Inception: January 15, 1831
Capital city: Chicago
Elevation above the sea: 950 m
Shares border with: McHenry County, Lake County, Will County, DuPage County, Kane County, Porter County, Berrien County
Website: https://cookcountyil.gov
GPS coordinates: 41.80000,-87.71667
Latest update: May 27, 2025 20:08
Willis Tower
11 km
Cloud Gate
12 km
Wrigley Field
17.2 km
Trump International Hotel and Tower
12.4 km
Soldier Field
10.8 km
875 North Michigan Avenue
13.5 km
United Center
9.6 km
U-505
11.3 km
Barack Obama Presidential Center
11.1 km
Art Institute of Chicago
11.7 km
Chicago Pile-1
9.7 km
Hull House
9.9 km
Millennium Park
12.1 km
Navy Pier
14.1 km
Allstate Arena
26.9 km
Robie House
10.1 km
Field Museum of Natural History
11.1 km
St. Regis Chicago
12.7 km
Aon Center
12.4 km
Kenneth C. Griffin Museum of Science and Industry
11.2 km
Marina City
12.2 km
Bahá'í House of Worship for the North American Continent
30.7 km
Buckingham Fountain
11.7 km
Pier Park
13.7 km
Symphony Center
11.6 km
Grant Park
11.7 km
Chicago Water Tower
13.2 km
Chicago Theatre
12 kmReviews
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