Columbia Police Department

Columbia Police Department is the municipal law-enforcement agency for the City of Columbia in Monroe County, Illinois, based at 1020 N Main St. The department serves residents, businesses, and visitors within Columbia limits in Monroe 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. Columbia 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 Columbia should be reported by dialing 911.

According to the U.S. Census Bureau (ACS 2023), Columbia city, IL has an estimated population of 11,063.