LOS OSOS HIGH SCHOOL

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6001 MILLIKEN AVE
RANCHO CUCAMONGA, CA 91737
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Phone: 909-477-6900
School Information
  • GreatSchools Rating: 9
  • Educational Climate: Below Average
  • Technology Measure: Medium-low
  • Type: Public
  • Grades: 9th Grade - 12th Grade
  • District: Chaffey Joint Union High School District
  • Students/Teacher: 26:1
  • Students/Grade: 787
  • Number Students: 3148
  • Number Teachers: 122
  • Instructional Expense/Pupil: 5310
  • Poverty Level: 16 - 29.9 PERCENT
  • Principal: Ms Susan Petrocelli
  • CHARTER SCHOOL
  • GIFTED AND TALENTED PROGRAMS
  • ESL
  • SPECIAL EDUCATION
  • ADVANCED PLACEMENT
  • BEFORE AND AFTER SCHOOL PROGRAMS
  • ALTERNATIVE PROGRAMS
  • YEAR ROUND CLASSES
  • VOC-TECH
  • ADULT EDUCATION
  • NCLB SCHOOL
  • BLUE RIBBON SCHOOL
  • COALITION OF ESSENTIAL SCHOOLS
  • AYP SCHOOL
  • INTERNATIONAL BACCALAUREATE
  • MAGNET SCHOOL
School Ratings & Reviews

School Ratings (78 ratings)
Maximum Rating: 5




    School Reviews (51 Reviews)
    Page 1 of 11
    Parent Review | Rating:
    Posted 2014-06-23
    "The counselor has been very helpful in choosing classes my child is interested in. The technology program is current, with all new computers and software. The principal really administrates this school effectively. It is safe and there are zero "gangs" which can be find in other neighboring areas."
    Other Review | Rating:
    Posted 2014-06-07
    "We took a tour of the school and love the people and the location here in Rancho Cucamonga. We just moved to this area and are looking forward to great things for our children."
    Other Review | Rating:
    Posted 2013-11-06
    "Los Osos is an amazing school! I wasn't as motivated freshman year to do so good, But my teachers did everything they could to help me. They are very flexible and are willing to do whatever it takes to make sure you pass. Also the best High School in San Bernadino County!"
    Student Review | Rating:
    Posted 2013-08-20
    "Los Osos High School. Let me just say first off, it is the best high school in Southern California. Everything, and i mean everything is perfect about LOHS. It surpasses Rancho Cucamonga High School as well as the rest! With the outstanding principle, Mrs. Petrocheli , This is still the top school.Also WE ARE NOW A CALIFORNIA DISTINGUISHED SCHOOL! We made it to the top 10! Our API is through the roof and all we can do, is till go further up! Go LOHS Grizzles!"
    Other Review | Rating:
    Posted 2013-08-16
    "Love this school transferred to public school for the first time as a freshman and I loved it people are so much nicer here, the academics are amazing. It's a incredible school that offers so much. I am so happy I am at this school. No complaints at all (: people are welcoming classes are great and teachers are awesome and it's so easy to make friends. I'm so glad I chose this school."
    Page 1 of 11
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