6001 Milliken Ave.
Rancho Cucamonga, CA 91737
(School attendance zone shown in map)
Rating
9/
10
Top 20%
Los Osos High School serves 3,153 students in grades 9-12.
Los Osos High School placed in the top 20% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 5%) for the 2018-19 school year.
The percentage of students achieving proficiency in math is 58% (which is higher than the California state average of 40%) for the 2018-19 school year. The percentage of students achieving proficiency in reading/language arts is 81% (which is higher than the California state average of 51%) for the 2018-19 school year.
The student:teacher ratio of 26:1 is higher than the California state level of 23:1.
Minority enrollment is 65% of the student body (majority Hispanic), which is lower than the California state average of 77% (majority Hispanic).

Top Rankings

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

School Overview

Los Osos High School's student population of 3,153 students has stayed relatively flat over five school years.
The teacher population of 121 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
3,153 students
This chart display total students of Los Osos High School by year, with the latest 2017-18 school year data.
Gender %
This chart display gender of Los Osos High School
Total Classroom Teachers
121 teachers
This chart display the total teachers of Los Osos High School by year, with the latest 2017-18 school year data.
Students by Grade
This chart display the students of Los Osos High School by grade.

School Calendar

View the Los Osos High School yearly calendar below. Note key dates such as:

Event
Date
First Day of Summer School (Events)
June 01, 2022 (Wednesday)
Last Day of Summer School (Events)
June 30, 2022 (Thursday)

School Rankings

Los Osos High School is ranked within the top 20% of all 9,659 schools in California (based off of combined math and reading proficiency testing data) for the 2018-19 school year.
The diversity score of Los Osos High School is 0.71, 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.
Definition of Terms 2017-2018 School Year Data
This School
State Level (CA)
Overall Testing Rank
#1039 out of 9659 schools
(Top 20%)
This chart display the overall school rank of Los Osos High School, with the latest 2018-19 school year data.
Math Test Scores (% Proficient)
58%
40%
This chart display 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 2018-19 school year data.
Reading/Language Arts Test Scores (% Proficient)
81%
51%
This chart display 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 2018-19 school year data.
Student : Teacher Ratio
26:1
23:1
This chart display the student teacher ratio of Los Osos High School and the public school average student teacher ratio of California by year, with the latest 2017-18 school year data.
American Indian
n/a
1%
Asian
20%
12%
This chart display 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 2017-18 school year data.
Hispanic
36%
54%
This chart display 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 2017-18 school year data.
Black
7%
5%
This chart display 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 2017-18 school year data.
White
35%
23%
This chart display 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 2017-18 school year data.
Hawaiian
n/a
1%
This chart display 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
2%
4%
This chart display 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 2017-18 school year data.
All Ethnic Groups
This chart display the percentage breakdown of students of all ethnic groups in Los Osos High School.
This chart display the percentage breakdown of public school students of all ethnic groups in CA.
Diversity Score
0.71
This chart display the diversity score of Los Osos High School and the public school average diversity score of California by year, with the latest 2017-18 school year data.
Graduation Rate
95%
84%
This chart display graduation rate of Los Osos High School and public school graduation rate of California by year, with the latest 2018-19 school year data.
Eligible for Free Lunch
26%
53%
This chart display 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 2017-18 school year data.
Eligible for Reduced Lunch
7%
7%
This chart display 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 2017-18 school year data.
Source: 2017-2018 (latest school year available) NCES, CA Dept. of Education

School Reviews

5  
Oustanding, both of my children attended this school
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Quick Stats (2022)

  • Grades: 9-12
  • Students: 3,153 students
  • Student:Teacher Ratio: 26:1
  • Minority Enrollment: 65%
  • Graduation Rate
    : 95% (Top 30% in CA)
  • Overall Testing Rank
    : Top 20%
  • Math Proficiency
    : 58% (Top 20%)
  • Reading Proficiency
    : 81% (Top 5%)
  • Diversity Score
    : 0.71 (Top 10%)

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