Cook County Sheriff
The Cook County Sheriff’s Office is the principal law enforcement agency that serves Cook County, Illinois. It is the second-largest sheriff’s department in the United States, with over 6,900 members when at full operational strength. Due to its size, the Cook County Sheriff’s Office divides its operations by task into several departments, the most recognizable of them are the Cook County Sheriff’s Police Department, the Court Services Department, and the Department of Corrections. The Sheriff oversees all three departments.
Sheriff: Thomas Dart
Annual budget: $619 million (2020)
Headquarters: 50 W. Washington, Chicago, Illinois 60602