The incident happened before 9 a.m. in front of the school in the 1700 block of Jonathan Street, sheriff's officials said. The school begins classes at 9 a.m., according to the Adelanto School District's website.
The boy was exiting his mother's vehicle which was stopped in the southbound lanes of Jonathan Street, according to a sheriff's news release. The boy ran behind her car, into the northbound lane of Jonathan Road and into the path of a sheriff's patrol vehicle driven by Sgt. Wendell Anderson. Anderson was driving at about 4 to 6 mph when the incident took place, according to investigators.
The boy was hit by the vehicle's bumper on the driver's side, knocking the juvenile to the ground, according to officials.
The boy was taken to a hospital with minor to moderate injuries.
Jonathan Street was shut down for at least two hours for the investigation.
Classes at Adelanto Elementary School continued as usual, according to school staff, but parents have the option of taking their children home for the day. It was unclear if any children witnessed the incident.
The incident is being investigated by the Victorville station's Major Accident Investigation Team.