Half Moon Bay Police Department

Half Moon Bay Police Department is the municipal law-enforcement agency for the City of Half Moon Bay in San Mateo County, California, based at 537 Kelly Avenue. The department serves residents, businesses, and visitors within Half Moon Bay limits in San Mateo 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. Half Moon Bay 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 Half Moon Bay should be reported by dialing 911.

According to the U.S. Census Bureau (ACS 2023), Half Moon Bay city, CA has an estimated population of 11,454.