Mesa’s predecessor schools, Del Norte School and Center School were both originally built around 1895. In 1937, two years after Del Norte burned, Center School joined Del Norte to form Mesa Union School District. The current site of Mesa Union was built in 1939 and had three teachers and 68 students. Present enrollment is about 530 students and 25 teachers. Mesa Union School District consists of Mesa Elementary School, a California Distinguished Elementary School of Kindergarten through 5th grade, and Mesa Jr. High School, a California Distinguished School and National Blue Ribbon School, consists of grades 6th, 7th, and 8th. Both schools occupy the same site located in the beautiful Los Posas Valley and maintain a private school atmosphere. The Mesa Union School District consistently has the highest test scores in Ventura County. Mesa, along with its predecessor schools has provided our children with a sound educational foundation for the past 60 years and it’s motto “Commit to Excellence” speaks to the future.