Rancho Cucamonga

Rancho Cucamonga is the municipal law-enforcement agency for the City of Rancho Cucamonga in San Bernardino County, California, based at 10510 Civic Center Drive. The department serves residents, businesses, and visitors within Rancho Cucamonga limits in San Bernardino 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. Rancho Cucamonga sits in a California community corridor linking residential and commercial areas, and the police department is the primary local law-enforcement presence for day-to-day public safety inside the city. Public safety emergencies in Rancho Cucamonga should be reported by dialing 911.

According to the U.S. Census Bureau (ACS 2023), Rancho Cucamonga city, CA has an estimated population of 174,693.