Serving 2,759 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 21:1.
Minority enrollment is 73% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Stats (2025)
Grades: 9-12
Enrollment: 2,759 students
Student:Teacher Ratio: 25:1
Minority Enrollment: 73%
Graduation Rate
: 96% (Top 10% in CA)
Overall Testing Rank
: Top 20%
Math Proficiency
: 52% (Top 20%)
Reading Proficiency
: 81% (Top 5%)
Science Proficiency
: 35% (Top 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education
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 0.71, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
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?
2,759 students attend Los Osos High School.
What is the racial composition of the student body?
41% of Los Osos High School students are Hispanic, 27% of students are White, 22% of students are Asian, 6% of students are Black, and 4% of students are Two or more races.
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 21:1.
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?
We explore how the Department of Education shapes American education, from its cabinet-level leadership to its impact on millions of students, written for general audiences seeking clarity on this vital institution.
Explore the origins of educational segregation during the colonial era and the differential treatment of Native American, African American, and white students. This article delves into the historical context, policies, and societal attitudes that shaped early education in colonial America, highlighting the disparities and injustices that persisted within the schooling systems of that time.
Explore the revolutionary approach of Personalized Learning in K-12 education. This article discusses the benefits, challenges, and potential of tailoring education to individual student needs, incorporating technology and adaptive learning methods to prepare students for the 21st century.
Quick Stats (2025)
Grades: 9-12
Enrollment: 2,759 students
Student:Teacher Ratio: 25:1
Minority Enrollment: 73%
Graduation Rate
: 96% (Top 10%)
Overall Testing Rank
: Top 20%
Math Proficiency
: 52% (Top 20%)
Reading Proficiency
: 81% (Top 5%)
Science Proficiency
: 35% (Top 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Related School Videos
4:42
4:53
5:01
16:18
Related School News
The mother of a Los Osos High School junior varsity football player who can be seen in a video ...
Inland Valley Daily Bulletin, Calif. Sep. 21—Students at Los Osos High School in Rancho ...
A former assistant football coach at Los Osos High School in Rancho Cucamonga, accused of planting a ...
