North Monterey County High School is a high school in Castroville, California, USA, was established in 1978. It serves the populations of Aromas, Castroville, Prunedale, Royal Oaks, Elkhorn and Salinas. The school is part of the North Monterey County Unified School District. North Monterey County High School is abbreviated on some official documents as NMCHS although it is more commonly known as e... Wikipedia