Warren Police Department

Warrenville Police Department is the municipal law-enforcement agency for the City of Warrenville in DuPage County, Illinois. The department serves residents, businesses, and visitors within Warrenville city limits along the western suburban corridor of metro Chicago. Its area of responsibility covers patrol and response to calls for service, traffic enforcement, criminal investigations inside the city, and community policing across residential neighborhoods and commercial areas. Warrenville sits in DuPage County west of Chicago near forest-preserve and expressway corridors, and the police department is the primary local law-enforcement presence for day-to-day public safety inside the city. Public safety emergencies in Warrenville should be reported by dialing 911.

According to the U.S. Census Bureau (ACS 2023), Warren village, IL has an estimated population of 1,439.