Richard Gahr High School, often simply known as Gahr High School, is a public, STEAM magnet high school in Cerritos, California, serving grades 9-12. Gahr High is one of three comprehensive high schools in the ABC Unified School District. The school is a two-time California Distinguished School.
Serving 1,631 students in grades 9-12, Gahr (Richard) High School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 44% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 74% (which is higher than the California state average of 47%).
The student-teacher ratio of 22:1 is higher than the California state level of 21:1.
Minority enrollment is 95% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,631 students
- Student-Teacher Ratio: 22:1
- Minority Enrollment: 95%
- Graduation Rate: ≥99% (Top 1% in CA)
- Overall Testing Rank: Top 20%
- Math Proficiency: 44% (Top 30%)
- Reading Proficiency: 74% (Top 10%)
- Science Proficiency: 36% (Top 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Gahr (Richard) High School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
Graduation Rate
School Overview
Gahr (Richard) High School's student population of 1,631 students has declined by 13% over five school years.
The teacher population of 73 teachers has declined by 9% over five school years.
Grades Offered
Grades 9-12
Total Students
1,631 students
Total Classroom Teachers
73 teachers
Year Founded
1965
Colors
White, Blue, Gold
Campus Size
20 acres
School Motto
We Belong
School Rankings
Gahr (Richard) High School ranks within the top 20% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Gahr (Richard) High School is 0.63, which is equal to the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1719 out of 9523 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
44%
34%
Reading/Language Arts Test Scores (% Proficient)
74%
47%
Science Test Scores (% Proficient)
36%
29%
Student-Teacher Ratio
22:1
21:1
American Indian
n/a
1%
Asian
23%
12%
Hispanic
55%
56%
Black
12%
5%
White
5%
20%
Hawaiian
n/a
n/a
Two or more races
5%
6%
All Ethnic Groups
Graduation Rate
≥99%
87%
Eligible for Free Lunch
46%
54%
Eligible for Reduced Lunch
15%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Gladiators
Frequently Asked Questions
What is Gahr (Richard) High School's ranking?
Gahr (Richard) High School is ranked #1719 out of 9,523 schools, which ranks it among the top 20% of public schools in California.
What schools are Gahr (Richard) High School often compared to?
Gahr (Richard) High Schoolis often viewed alongside schools like Cerritos High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
44% of students have achieved math proficiency (compared to the 34% CA state average), while 74% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Gahr (Richard) High School?
The graduation rate of Gahr (Richard) High School is 99%, which is higher than the California state average of 87%.
How many students attend Gahr (Richard) High School?
1,631 students attend Gahr (Richard) High School.
What is the racial composition of the student body?
55% of Gahr (Richard) High School students are Hispanic, 23% of students are Asian, 12% of students are Black, 5% of students are White, and 5% of students are Two or more races.
What is the student-teacher ratio of Gahr (Richard) High School?
Gahr (Richard) High School has a student ration of 22:1, which is higher than the California state average of 21:1.
What grades does Gahr (Richard) High School offer ?
Gahr (Richard) High School offers enrollment in grades 9-12
What school district is Gahr (Richard) High School part of?
Gahr (Richard) High School is part of ABC Unified School District.
School Reviews
2 10/10/2025
The faculty at this administration are absolutely horrendous. None of the employees seem to care at all for the students, and when asked for assistance, they give you a an attitude as if it wasn't their job to help others sucdeed, all they care about are their own paychecks, and in my opinion, nearly all of the staff and teachers are corrupt scum. This is a disgusting embarrassment of a high school, and the students DESERVE much more.
5 10/10/2025
Good school
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