Quincy Police Department

Quincy Police Department is the municipal law-enforcement agency for the City of Quincy in Adams County, Illinois, based at 110 South 8th Street. The department serves residents, businesses, and visitors within Quincy limits in Adams County. Its area of responsibility covers patrol and response to calls for service, traffic enforcement, criminal investigations inside the city, and community policing programs that support local neighborhoods and commercial corridors. Quincy sits in a Illinois corridor that mixes residential neighborhoods with local commerce, and the police department is the primary local law-enforcement presence for day-to-day public safety inside the city. Public safety emergencies in Quincy should be reported by dialing 911.

According to the U.S. Census Bureau (ACS 2023), Quincy city, IL has an estimated population of 39,188.