Circuit Court of Cook County

The Circuit Court of Cook County is the largest of the 25 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. The modern Cook County Circuit Court was created through a 1964 amendment to the Illinois Constitution which reorganized the courts of Illinois.

Source: Wikipedia — Circuit Court of Cook County (CC BY-SA 4.0)