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County government. Subdivisions. 261 Precincts. 1,433 Townships. There are 102 counties in Illinois. The most populous of these is Cook County, the second-most populous county in the United States and the home of Chicago, while the least populous is Hardin County. The largest by land area is McLean County, while the smallest is Putnam County.
Thornton Township is one of 29 townships in Cook County, Illinois. As of the 2020 census, its population was 157,865. 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.
Subcategories. This category has the following 17 subcategories, out of 17 total. Berwyn, Illinois (1 C, 18 P) Blue Island, Illinois (1 C, 11 P) Brookfield, Illinois (1 C, 14 P) Burbank, Illinois (5 P) Calumet City, Illinois (1 C, 4 P) Chicago (26 C, 11 P) Chicago Heights, Illinois (1 C, 10 P) Des Plaines, Illinois (1 C, 31 P)
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.
History. References. Flag of Cook County, Illinois. The flag of Cook County, Illinois, nicknamed " I Will ", consists of a light blue pall with a green border on a field of white.
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.
Cook County contains 134 municipalities in its region, the most well known being the City of Chicago – which is the County seat where the central offices of Cook County are located.
