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Alta Loma High School vs. Los Osos High School

Should you attend Alta Loma High School or Los Osos High School? Visitors to our site frequently compare these two schools. Compare their rankings, test scores, reviews and more to help you determine which school is the best choice for you.
<麻豆果冻传媒 class="so-dt-title">School Overview
School
Alta Loma High School
8880 Baseline Rd.
Rancho Cucamonga, CA 91701
: 
9/
10
Top 20%
Los Osos High School
6001 Milliken Ave.
Rancho Cucamonga, CA 91737
: 
9/
10
Top 20%
Top Rankings

Alta Loma High School ranks among the top 20% of public schools in California for:

Category
Attribute
Overall Rank
Highest overall rank (Top 20%)
Most improved public schools
Most improved public schools (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 10%)

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

Category
Attribute
Overall Rank
Highest overall rank (Top 20%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Diversity
Most diverse schools (Top 10%)
Overview
Serving 2,400 students in grades 9-12, Alta Loma High School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 42% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 75% (which is higher than the California state average of 47%).
The student-teacher ratio of 24:1 is higher than the California state level of 21:1.
Minority enrollment is 76% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
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 51% (which is higher than the California state average of 34%). 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).
Grades Offered
9-12
9-12
Total Students
2,400 students
2,759 students
This chart illustrates the total number of students at Alta Loma High School over the years, with the most recent data from the 2022-23 school year.
This chart illustrates the total number of students at Los Osos High School over the years, with the most recent data from the 2022-23 school year.
% Male | % Female
52% | 48%
50% | 50%
This pie chart depicts the gender distribution at Alta Loma High School.
This pie chart depicts the gender distribution at Los Osos High School.
Total Classroom Teachers
99 teachers
111 teachers
This chart illustrates the total number of teachers at Alta Loma High School over the years, with the most recent data from the 2022-23 school year.
This chart illustrates the total number of teachers at Los Osos High School over the years, with the most recent data from the 2022-23 school year.
Student-Teacher Ratio
24:1
25:1
This chart presents a comparison of the student-teacher ratio at Alta Loma High School with the average student-teacher ratio for public schools in the Chaffey Joint Union High School District and the state of California, utilizing data from multiple years and featuring the most recent figures from the 2022-23 school year.
This chart presents a comparison of the student-teacher ratio at Los Osos High School with the average student-teacher ratio for public schools in the Chaffey Joint Union High School District and the state of California, utilizing data from multiple years and featuring the most recent figures from the 2022-23 school year.
<麻豆果冻传媒 class="so-dt-title">Test Scores
#1747 out of 9523 schools in CA
(Top 20%)
#1106 out of 9523 schools in CA
(Top 20%)
This chart illustrates the overall school ranking of Alta Loma High School, encompassing data from multiple years, including the most recent figures from the 2022-23 school year.
This chart illustrates the overall school ranking of Los Osos High School, encompassing data from multiple years, including the most recent figures from the 2022-23 school year.
42%
(Top 50% in CA)
51%
(Top 20% in CA)
This chart presents a comparison of the percentage of students at Alta Loma High School who have achieved proficiency or higher in Math with the average percentages observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2022-23 school year.
This chart presents a comparison of the percentage of students at Los Osos High School who have achieved proficiency or higher in Math with the average percentages observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2022-23 school year.
75%
(Top 10% in CA)(21-22 School Year Data)
81%
(Top 5% in CA)(21-22 School Year Data)
This chart presents a comparison of the percentage of students at Alta Loma High School who have achieved proficiency or higher in RLA (Reading and Language Arts) with the average percentages observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2021-22 school year.
This chart presents a comparison of the percentage of students at Los Osos High School who have achieved proficiency or higher in RLA (Reading and Language Arts) with the average percentages observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2021-22 school year.
26%
(Top 50% in CA)(21-22 School Year Data)
35%
(Top 50% in CA)(21-22 School Year Data)
This chart presents a comparison of the percentage of students at Alta Loma High School who have achieved proficiency or higher in Science with the average percentages observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2021-22 school year.
This chart presents a comparison of the percentage of students at Los Osos High School who have achieved proficiency or higher in Science with the average percentages observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2021-22 school year.
94%
(Top 30% in CA)
95%
(Top 30% in CA)
This chart presents a comparison of the graduation rate of Alta Loma High School with the average graduation rate observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2022-23 school year.
This chart presents a comparison of the graduation rate of Los Osos High School with the average graduation rate observed in the Chaffey Joint Union High School District and California public schools over several years, with the most recent data from the 2022-23 school year.
<麻豆果冻传媒 class="so-dt-title">Students by Grade
Students by Grade
This chart displays the students of Alta Loma High School by grade.
This chart displays the students of Los Osos High School by grade.
Grade 9 Students
569
624
Grade 10 Students
653
698
Grade 11 Students
582
698
Grade 12 Students
596
739
<麻豆果冻传媒 class="so-dt-title">Students by Ethnicity
% American Indian
n/a
n/a
This chart presents a comparison of the percentage of students who identify as American Indian at Alta Loma High School, versus the percentage of public school students who identify as American Indian in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2019-20 school year.
This chart presents a comparison of the percentage of students who identify as American Indian at Los Osos High School, versus the percentage of public school students who identify as American Indian in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
% Asian
6%
22%
This chart presents a comparison of the percentage of students who identify as Asian at Alta Loma High School, versus the percentage of public school students who identify as Asian in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
This chart presents a comparison of the percentage of students who identify as Asian at Los Osos High School, versus the percentage of public school students who identify as Asian in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
% Hispanic
60%
41%
This chart presents a comparison of the percentage of students who identify as Hispanic at Alta Loma High School, versus the percentage of public school students who identify as Hispanic in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
This chart presents a comparison of the percentage of students who identify as Hispanic at Los Osos High School, versus the percentage of public school students who identify as Hispanic in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
% Black
5%
6%
This chart presents a comparison of the percentage of students who identify as Black at Alta Loma High School, versus the percentage of public school students who identify as Black in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
This chart presents a comparison of the percentage of students who identify as Black at Los Osos High School, versus the percentage of public school students who identify as Black in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
% White
24%
27%
This chart presents a comparison of the percentage of students who identify as White at Alta Loma High School, versus the percentage of public school students who identify as White in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
This chart presents a comparison of the percentage of students who identify as White at Los Osos High School, versus the percentage of public school students who identify as White in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
% Hawaiian
n/a
n/a
This chart presents a comparison of the percentage of students who identify as Native Hawaiian or Pacific Islander at Alta Loma High School, versus the percentage of public school students who identify as Native Hawaiian or Pacific Islander in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2013-14 school year.
This chart presents a comparison of the percentage of students who identify as Native Hawaiian or Pacific Islander at Los Osos High School, versus the percentage of public school students who identify as Native Hawaiian or Pacific Islander in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2010-11 school year.
% Two or more races
5%
4%
This chart presents a comparison of the percentage of students who identify as two or more races at Alta Loma High School, versus the percentage of public school students who identify as two or more races in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
This chart presents a comparison of the percentage of students who identify as two or more races at Los Osos High School, versus the percentage of public school students who identify as two or more races in the Chaffey Joint Union High School District and in California, utilizing data collected over several years with the most recent figures pertaining to the 2022-23 school year.
0.58
0.71
This chart showcases the diversity score of Alta Loma High School, juxtaposed with the average diversity score for public schools in the Chaffey Joint Union High School District and California, utilizing data that spans several years and includes the most recent figures from the 2022-23 school year.
This chart showcases the diversity score of Los Osos High School, juxtaposed with the average diversity score for public schools in the Chaffey Joint Union High School District and California, utilizing data that spans several years and includes the most recent figures from the 2022-23 school year.
<麻豆果冻传媒 class="so-dt-title">Additional Information
Eligible for Free Lunch
47%
31%
This chart showcases the percentage of students eligible for free lunch at Alta Loma High School, juxtaposed with the average percentage of public school students eligible for free lunch in the Chaffey Joint Union High School District and California, utilizing data that spans several years and includes the most recent figures from the 2022-23 school year.
This chart showcases the percentage of students eligible for free lunch at Los Osos High School, juxtaposed with the average percentage of public school students eligible for free lunch in the Chaffey Joint Union High School District and California, utilizing data that spans several years and includes the most recent figures from the 2022-23 school year.
Eligible for Reduced Lunch
14%
3%
This chart showcases the percentage of students eligible for reduced-price lunch at Alta Loma High School, juxtaposed with the average percentage of public school students eligible for reduced-price lunch in the Chaffey Joint Union High School District and California, utilizing data that spans several years and includes the most recent figures from the 2022-23 school year.
This chart showcases the percentage of students eligible for reduced-price lunch at Los Osos High School, juxtaposed with the average percentage of public school students eligible for reduced-price lunch in the Chaffey Joint Union High School District and California, utilizing data that spans several years and includes the most recent figures from the 2022-23 school year.
 
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