Escondido Union High School District Share: Schools and Colleges Escondido Union High School District Visit Website 302 N Midway Drive Escondido, CA 92027 (760) 291-3200 (760) 480-3163 (fax) Rep Info Whom to Contact Marie Alvarado Phone: (760) 291-3201 Send an Email Jon Petersen Phone: (760) 291-3201 Send an Email