麻豆果冻传媒

Los Osos High School

6001 Milliken Ave.
Rancho Cucamonga, CA 91737
(School attendance zone shown in map)
9/
10
Top 20%
Serving 2,837 students in grades 9-12, Los Osos High School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 52% (which is higher than the California state average of 33%). The percentage of students achieving proficiency in reading/language arts is 81% (which is higher than the California state average of 47%).
The student:teacher ratio of 25:1 is higher than the California state level of 22:1.
Minority enrollment is 72% of the student body (majority Hispanic), which is lower than the California state average of 79% (majority Hispanic).

Quick Stats (2024-25)

  • School Type: Magnet School
  • Grades: 9-12
  • Enrollment: 2,837 students
  • Student:Teacher Ratio: 25:1
  • Minority Enrollment: 72%
  • : 96% (Top 10% in CA)
  • : Top 20%
  • : 52% (Top 20%)
  • : 81% (Top 5%)
  • : 35% (Top 50%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education
<麻豆果冻传媒 class="so-dt-title" id="top-rankings">Top Rankings

Los Osos High School ranks among the top 20% of public schools in California for:

<麻豆果冻传媒 class='so-dt-title' id="overview">School Overview
Los Osos High School's student population of 2,837 students has declined by 7% over five school years.
The teacher population of 115 teachers has declined by 6% over five school years.
School Type
Grades Offered
Grades 9-12
Total Students
2,837 students
This chart displays total students of Los Osos High School by year, with the latest 2022-23 school year data.
Gender %
This chart displays gender of Los Osos High School
Total Classroom Teachers
115 teachers
This chart displays the total teachers of Los Osos High School by year, with the latest 2022-23 school year data.
Students by Grade
This chart displays the students of Los Osos High School by grade.
<麻豆果冻传媒 class='so-dt-title' id="school-rankings">School Rankings
Los Osos High School ranks within the top 20% of all 9,602 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Los Osos High School is 0.72, which is more than the diversity score at state average of 0.64. The school's diversity has stayed relatively flat over five school years.
This School
State Level (CA)
#1005 out of 9602 schools
(Top 20%)
This chart displays the overall school rank of Los Osos High School, with the latest 2021-22 school year data.
52%
33%
This chart displays the percentage of students that scored at or above 'proficient' levels in Math of Los Osos High School and the percentage of public school students that scored at or above 'proficient' levels in Math of public schools in California by year, with the latest 2021-22 school year data.
81%
47%
This chart displays the percentage of students that scored at or above 'proficient' levels in Reading/Language Arts of Los Osos High School and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of California by year, with the latest 2021-22 school year data.
35%
29%
This chart displays the percentage of students that scored at or above 'proficient' levels in Science of Los Osos High School and the percentage of public school students that scored at or above 'proficient' levels in Science of public schools in California by year, with the latest 2021-22 school year data.
Student : Teacher Ratio
25:1
22:1
This chart displays the student teacher ratio of Los Osos High School and the public school average student teacher ratio of California by year, with the latest 2022-23 school year data.
American Indian
1%
1%
This chart displays the percentage of American Indian students in Los Osos High School and percentage of American Indian public school students in California by year, with the latest 2022-23 school year data.
Asian
22%
12%
This chart displays the percentage of Asian students in Los Osos High School and the percentage of Asian public school students in California by year, with the latest 2022-23 school year data.
Hispanic
39%
55%
This chart displays the percentage of Hispanic students in Los Osos High School and the percentage of Hispanic public school students in California by year, with the latest 2022-23 school year data.
Black
6%
5%
This chart displays the percentage of Black students in Los Osos High School and the percentage of Black public school students in California by year, with the latest 2022-23 school year data.
White
28%
21%
This chart displays the percentage of White students in Los Osos High School and the percentage of White public school students in California by year, with the latest 2022-23 school year data.
Hawaiian
n/a
n/a
This chart displays the percentage of Hawaiian students in Los Osos High School and the percentage of Hawaiian public school students in California by year, with the latest 2010-11 school year data.
Two or more races
4%
6%
This chart displays the percentage of students of two or more races in Los Osos High School and the percentage of public school students of two or more races in California by year, with the latest 2022-23 school year data.
All Ethnic Groups
This chart displays the percentage breakdown of students of all ethnic groups in Los Osos High School.
This chart displays the percentage breakdown of public school students of all ethnic groups in California.
0.72
This chart displays the diversity score of Los Osos High School and the public school average diversity score of California by year, with the latest 2022-23 school year data.
96%
87%
This chart displays graduation rate of Los Osos High School and public school graduation rate of California by year, with the latest 2021-22 school year data.
Eligible for Free Lunch
25%
51%
This chart displays the percentage of students who is eligible for free lunch in Los Osos High School and the percentage of public school students who is eligible for free lunch in California by year, with the latest 2022-23 school year data.
Eligible for Reduced Lunch
4%
8%
This chart displays the percentage of students who is eligible for reduced lunch in Los Osos High School and the percentage of public school students who is eligible for reduced lunch in California by year, with the latest 2022-23 school year data.
School Statewide Testing
Source: National Center for Education Statistics (NCES), CA Dept. of Education
<麻豆果冻传媒 class='so-dt-title' id='faq'>Frequently Asked Questions
What is Los Osos High School's ranking?
Los Osos High School is ranked #1005 out of 9,602 schools, which ranks it among the top 20% of public schools in California.
What schools are Los Osos High School often compared to?
Los Osos High Schoolis often viewed alongside schools like Rancho Cucamonga High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
52% of students have achieved math proficiency (compared to the 33% CA state average), while 81% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Los Osos High School?
The graduation rate of Los Osos High School is 96%, which is higher than the California state average of 87%.
How many students attend Los Osos High School?
2,837 students attend Los Osos High School.
What is the racial composition of the student body?
39% of Los Osos High School students are Hispanic, 28% of students are White, 22% of students are Asian, 6% of students are Black, 4% of students are Two or more races, and 1% of students are American Indian.
What is the student:teacher ratio of Los Osos High School?
Los Osos High School has a student ration of 25:1, which is higher than the California state average of 22:1.
What grades does Los Osos High School offer ?
Los Osos High School offers enrollment in grades 9-12
What school district is Los Osos High School part of?
Los Osos High School is part of Chaffey Joint Union High School District.
<麻豆果冻传媒 class='so-dt-title' id="school-calendar">School Calendar

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School Reviews
5   5/1/2012
Oustanding, both of my children attended this school
- Posted by Parent - sumrg

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Quick Stats (2024-25)

  • School Type: Magnet School
  • Grades: 9-12
  • Enrollment: 2,837 students
  • Student:Teacher Ratio: 25:1
  • Minority Enrollment: 72%
  • : 96% (Top 10%)
  • : Top 20%
  • : 52% (Top 20%)
  • : 81% (Top 5%)
  • : 35% (Top 50%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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