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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 5,276,000 people live in Cook County. This is 41 percent of all the people who live in Illinois.
Thornton Township is one of 29 townships in Cook County, Illinois. As of the 2020 census, its population was 157,865. [1] Incorporated in 1850, it is located immediately south of the city of Chicago. It is the second most populous township in Illinois as of the 2020 census, after Rockford Township (pop. 170,478) in Winnebago County.
More than 40 percent of all residents of Illinois live within Cook County. As of 2020, the population was 5,275,541. The county seat is Chicago, the most populous city in Illinois and the third most populous city in the United States. The county is at the center of the Chicago metropolitan area.
Cook County was created on January 15, 1831 by an act of the Illinois State Legislature as the 54th county established in Illinois. The unincorporated Fort Dearborn settlement at the mouth of the Chicago River became the new county’s seat. On May 7, 1831, Cook County elected its first officials.
The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes . Berwyn, Illinois. Blue Island, Illinois. Brookfield, Illinois. Burbank, Illinois. Calumet City, Illinois. Chicago Heights, Illinois. Country Club Hills, Illinois. Countryside, Illinois. Des Plaines, Illinois. Elgin, Illinois. Elmhurst, Illinois.
Cook County. When Cook County was organized in 1831 with approximately 100 residents in 2,464 square miles, it encompassed much of what is today Lake , DuPage , Will , McHenry , and Cookcounties. Because of population growth in northeastern Illinois in the 1830s, Cook County lost over half its territory, but continued to increase in population.
The Circuit Court of Cook County is the largest of the 24 circuit courts ( trial courts of original and general jurisdiction) in the judiciary of Illinois as well as one of the largest unified court systems in the United States – second only in size to the Superior Court of Los Angeles County since that court merged with other courts in 1998.
