Chicago Police Department

Chicago Police Department
Patch
Seal
Badge
Common nameChicago P.D.
AbbreviationCPD
MottoWe Serve and Protect
Agency overview
FormedDecember 20, 1835 (1835-12-20)
Employees13,086 (2020)
Annual budget$1.7 billion (2020)
Jurisdictional structure
Operations jurisdictionChicago, Illinois, U.S.
Jurisdictional area
Size237 sq mi (610 km2)
Population2,746,388 (2020)
Legal jurisdictionAs per operations jurisdiction
Governing bodyChicago City Council
General nature
Operational structure
Headquarters3510 S. Michigan Ave
Chicago, Illinois, U.S.
Police officers 12,000 of 13,500 (2025)
Civilian employees948 (2020)
Mayor of Chicago responsible
Agency executive
Bureaus
6
  • Bureau of Patrol
  • Bureau of Detectives
  • Bureau of Organized Crime
  • Bureau of Organizational Development
  • Bureau of Technical Services
  • Bureau of Internal Affairs
Facilities
Districts
Website
chicagopolice.org

The Chicago Police Department (CPD) is the primary law enforcement agency of the city of Chicago, Illinois, United States, under the jurisdiction of the Chicago City Council. It is the second-largest municipal police department in the United States, behind the New York City Police Department. As of 2025 CPD had 11,554 sworn officers on duty, and has 124 units. Tracing its roots to 1835, the Chicago Police Department is one of the oldest modern police departments in the world.