The Circuit Court of Cook County is the largest of the 25 circuit courts 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.
The modern Cook County Circuit Court was created through a 1964 amendment to the Illinois Constitution which reorganized the courts of Illinois.
More than 2.4 million cases are filed every year. To make work easier, the Circuit Court of Cook County is organized into three departments: County, Municipal, and Juvenile Justice and Child Protection.
