Mammoth Lakes Police Department

Mammoth Lakes Police Department is the municipal law-enforcement agency for the City of Mammoth Lakes in Mono County, California, based at 437 Old Mammoth Road. The department serves residents, businesses, and visitors within Mammoth Lakes limits in Mono 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. Mammoth Lakes sits across a California 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 Mammoth Lakes should be reported by dialing 911.

According to the U.S. Census Bureau (ACS 2023), Mammoth Lakes town, CA has an estimated population of 7,233.