Serving 2,400 students in grades 9-12, Alta Loma High School ranks in the top 30% 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 28% (which is lower than the California state average of 33%). 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).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 2,400 students
- Student:Teacher Ratio: 24:1
- Minority Enrollment: 76%
- Graduation Rate: 93% (Top 30% in CA)
- Overall Testing Rank: Top 30%
- Math Proficiency: 28% (Top 50%)
- Reading Proficiency: 75% (Top 10%)
- Science Proficiency: 26% (Top 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Alta Loma High School ranks among the top 20% of public schools in California for:
Category
Attribute
Reading/Language Arts Proficiency
School Overview
Alta Loma High School's student population of 2,400 students has declined by 5% over five school years.
The teacher population of 99 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
2,400 students
Gender %
Total Classroom Teachers
99 teachers
Year Founded
1963
School Calendar
School Colors
White, Royal blue, Silver
School Rankings
Alta Loma High School ranks within the top 30% of all 9,602 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Alta Loma High School is 0.58, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#2558 out of 9602 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
28%
33%
Reading/Language Arts Test Scores (% Proficient)
75%
47%
Science Test Scores (% Proficient)
26%
29%
Student : Teacher Ratio
24:1
21:1
American Indian
n/a
1%
Asian
6%
12%
Hispanic
60%
56%
Black
5%
5%
White
24%
20%
Hawaiian
n/a
n/a
Two or more races
5%
6%
All Ethnic Groups
Graduation Rate
93%
87%
Eligible for Free Lunch
47%
54%
Eligible for Reduced Lunch
14%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Alta Loma High School's ranking?
Alta Loma High School is ranked #2558 out of 9,602 schools, which ranks it among the top 30% of public schools in California.
What schools are Alta Loma High School often compared to?
Alta Loma High Schoolis often viewed alongside schools like Los Osos High School, Rancho Cucamonga High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
28% of students have achieved math proficiency (compared to the 33% CA state average), while 75% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Alta Loma High School?
The graduation rate of Alta Loma High School is 93%, which is higher than the California state average of 87%.
How many students attend Alta Loma High School?
2,400 students attend Alta Loma High School.
What is the racial composition of the student body?
60% of Alta Loma High School students are Hispanic, 24% of students are White, 6% of students are Asian, 5% of students are Black, and 5% of students are Two or more races.
What is the student:teacher ratio of Alta Loma High School?
Alta Loma High School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Alta Loma High School offer ?
Alta Loma High School offers enrollment in grades 9-12
What school district is Alta Loma High School part of?
Alta Loma High School is part of Chaffey Joint Union High School District.
School Reviews
5 1/17/2015
This is the best school with an excellent staff and enviorment. It has great academics, sports teams, and students. Anyone who says otherwise is completely clueless. There is tons of school spirt and I love this place more than anything in the world. GO BRAVES!!!
Review Alta Loma High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles

43 Fantastic ESL Resources for Students
We've put together this ESL resource guide to help students, from teens to adults, get the help they need to achieve their goals with learning English

Segregation in K-12 Education: Colonial Era
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.

2011 Classroom Size Update: Are Classes Still Growing Larger?
Since the recession, public school classrooms have seen major budget cuts - and many increases in class sizes. How is the situation in 2011? Read this article to find out.