The San Dieguito Union High School District is a public school district located in San Diego County, California. It serves students in grades 9 through 12 across several high schools, including San Dieguito Academy and La Costa Canyon High School. The district is known for its commitment to academic excellence and offers a variety of programs, including Advanced Placement courses and extracurricular activities. Established in 1959, the district encompasses several communities, including Encinitas, Solana Beach, and Cardiff-by-the-Sea. The San Dieguito Union High School District aims to provide a supportive learning environment that fosters student growth and prepares them for college and career opportunities.