Los Osos High

Los Osos High

Public High School | Grade 9-12
6001 Milliken Ave,  Rancho Cucamonga, CA
Chaffey Joint Union High School District
3.9
4.6
2,867 Students
A
Niche Grade

School Details

Head of School
Susan Petrocelli
Student Teacher Ratio
25:1
Average SAT Score
1240
Average ACT Score
28
Math Proficiency
52%
Reading Proficiency
81%
Average GPA
3.61
Graduation Rate
95%

Niche Grade

A
Academics
A
Teachers
A
College Prep
B
Administration
B-
Resources/Facilities
B
Clubs and Activities
B-
Sports
B
Food
Source: Niche
Niche Grades

Niche grades and rankings are calculated using dozens of public data sets and millions of reviews. Niche data scientists and user researchers rigorously analyze data and user opinions to assess the key aspects of K-12 Schools, Colleges, and Places to Live. Every month, millions of students and families use the Niche grades and report cards to find the right school or neighborhood.

Niche Grade Details

Academics
Average GPA
3.61
Reading Proficiency
81%
Math Proficiency
52%
Teachers
Student Teacher Ratio
25:1
Teachers
115
Full Time Teachers
115
Teachers in First or Second Year
9.7%
College Prep
Average SAT
1240
Math
630
Verbal
610
Average ACT
28
Math
27
English
28
Reading
28
Science
27
Number of AP Courses
16
AP Pass Rate
72.7%
AP Math Enrollment
High
AP Science Enrollment
Very High
Other AP Enrollment
Very High
Clubs and Activities
Girls Athletic Participation
Low
Boys Athletic Participation
Average

GreatSchools Rating

Source: GreatSchools
GreatSchools Rating
The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on a scale of 1 (below average) to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider family needs as part of the school selection process.
View GreatSchools Rating Methodology

GreatSchools Rating Details

Test Scores

Math
27.5%
State Average
17.9%
Science
15.2%
State Average
9.9%
GreatSchools Test Scores Rating
GreatSchools
The Test Score Rating reflects annual state test results for this school compared with scores statewide.

Teachers and Staff

Students Per Counselor
422:1

Student Diversity

Male
51.1%
Female
48.9%
Hispanic
39.4%
White
28%
Asian or Pacific Islander
22.3%
Black
6.3%
Two or more races
3.4%
Native American
<1%
Native Hawaiian or Other Pacific Islander
<1%
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School Rankings

#150 Best Public HS in California
#173 Best College Prep Public HS in California
Source: Niche

Specialty School Programs

AP Programs Offered
Free/Reduced Lunch Offered
Athletics Program

Colleges Students are Considering

Students are most interested in or go on to attend these colleges.
University of California - Los Angeles 733 Students
University of California - Irvine 617 Students
University of California - San Diego 572 Students
University of California - Berkeley 473 Students
University of Southern California 443 Students
San Diego State University 392 Students
University of California - Riverside 325 Students
California State Polytechnic University - Pomona 318 Students
University of California - Davis 314 Students
University of San Diego 312 Students

What Students Want to Study

Niche users from this school are most interested in the following majors.
Biology 307 Students
Psychology 285 Students
Business 234 Students
Nursing 182 Students
Computer Science 158 Students
Pre-Medicine Studies 119 Students
Political Science and Government 88 Students
Kinesiology and Exercise Science 82 Students
Biochemistry and Molecular Biology 60 Students
Economics 55 Students

This School’s Reviews

Niche Reviews
3.9 762 Reviews
5.0 Alum
9/10/2024
The best parts of my high school experience would be the friends I made and also the great teachers such as Mrs. Parslow and Mr. Skiles. The worst experience for me was the death of siblings in my senior year of high school but it also brought a sense of community to Los Osos which was really cool to see.
4.0 Senior
5/25/2024
Los Osos is a pretty school in my opinion, ranging from diversity to staff to the campus, etc. The school lunches are alright, but most of the teachers are really good at Los Osos.
3.0 Alum
3/25/2024
Best experience is the campus, it's in a nice area and there's some nice people. However staff, faculty, and teachers are weird. They care a lot about small stupid things and aren't open to change or new ideas. There's been past experiences with weird teachers and very creepy faculty. I think that staff needs to be addressed as well as get rid of the dress code. Facilities are nicely funded.
GreatSchools Reviews
4.6 32 Reviews
5.0 parent
4/21/2019
My children were well prepared to go to top colleges. One of my kids enrolled in Stanford, the other at UC Davis and my friends kids went to UCLA and UC Irvine last year. So very well prepared and this school has the most taking AP classes and passing the AP tests. Many kids come in from other schoo...
5.0 parent
2/9/2019
I could not have picked a better school for my children. I have had three attend Los Osos and all 3 have had happy and healthy experiences here! What more can a parent ask for?
2.0 parent
6/15/2017
I found this school not to be supportive.counselors are negative and did not support our goals. Did not have experience to guide child to a ivy league
1.0 student
11/29/2016
Staff only cares about the progression of themselves and not the students

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