Los Osos High School

Chaffey Joint Union High School District
  • Public, Advanced Placement School
  • Grades 9-12
  • 2,954 Students Enrolled
  • 25:1
    STUDENT-TEACHER RATIO
Contact Information
  • 6001 Milliken Ave Rancho Cucamonga, CA 91737
  • 909.477.6900
  • cjuhsd.net
  • Student Diversity