1100 Murray Drive, El Cajon, CA 92020 (La Mesa CA 91944), San Diego. CA, CA, 92020
The Grossmont Union High School District (GUHSD) serves approximately 16,500 students in grades 9-12 in East San Diego County, including the communities of Santee, El Cajon, La Mesa, Lakeside, Lemon Grove, Spring Valley, Alpine, Dulzura, and Jamul.