Markham Police Department

Markham Police Department is the municipal law-enforcement agency for the City of Markham in Cook County, Illinois, based at 16313 S Kedzie Parkway. The department serves residents, businesses, and visitors within Markham limits in Cook 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. Markham sits across a Illinois jurisdiction where seasonal and year-round residents share the roads, and the police department is the primary local law-enforcement presence for day-to-day public safety inside the city. Public safety emergencies in Markham should be reported by dialing 911.

According to the U.S. Census Bureau (ACS 2023), Markham city, IL has an estimated population of 11,434.