Circuit Court of Cook County

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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.^[1] The amendment effectively merged the often confusing and overlapping jurisdictions of Cook County's 161 courts, which were organized as municipal courts (such as the Municipal Court of Chicago) and specialized courts, into one uniform and cohesive court of general jurisdiction, organized into divisions, under the administration of one chief judge.

More than 2.4 million cases are filed every year. To accommodate its vast caseload, the Circuit Court of Cook County is organized into three functional departments: County, Municipal, and Juvenile Justice and Child Protection.^[2]

As of December 2014^[update], the court has 402 judges.^[3] Among them, 257 of the judges are circuit judges, who are elected for six-year terms either at-large from across the entire county, or from one of the court's 15 residential subcircuits. Circuit judges must be retained by voters every six years. The Illinois Supreme Court can fill circuit judge vacancies between elections. Any court-appointed judges must go before voters at the next available primary and general election in an even-numbered year.

As of December 2014, seven judges currently elected as circuit judges are instead serving as justices on the Illinois Appellate Court's First District through Supreme Court appointments. Should their term on the appellate court expire before their elected circuit court terms, they will revert to their old positions.

Another 145 judges are associate judges, elected by secret ballot among the court's circuit judges.

The circuit judges also elect among themselves a chief judge for the court, provides administration for the court and holds the power to assign judges to various calls throughout the court. Circuit Judge Timothy C. Evans has served as chief judge since September 2001.

Iris Martinez is the current Clerk of the Circuit Court of Cook County – a county-wide popularly elected position charged with managing the court's vast amounts of documents and related matters.