Fullerton Union High School is a public high school located in the Orange County, California city of Fullerton, operated by the Fullerton Joint Union High School District.
Serving 1,880 students in grades 9-12, Fullerton Union High School ranks in the top 50% 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 34% (which is equal to the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 57% (which is higher than the California state average of 47%).
The student-teacher ratio of 26:1 is higher than the California state level of 21:1.
Minority enrollment is 83% 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: 1,880 students
- Student-Teacher Ratio: 26:1
- Minority Enrollment: 83%
- Graduation Rate: 96% (Top 10% in CA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 34% (Top 50%)
- Reading Proficiency: 57% (Top 30%)
- Science Proficiency: 25% (Top 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Fullerton Union High School ranks among the top 20% of public schools in California for:
Category
Attribute
Graduation Rate
School Overview
Fullerton Union High School's student population of 1,880 students has stayed relatively flat over five school years.
The teacher population of 72 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
1,880 students
Total Classroom Teachers
72 teachers
Year Founded
1893
School Motto
'We are the HEART of Fullerton!'
School Rankings
Fullerton Union High School ranks within the top 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Fullerton Union High School is 0.52, 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
#3102 out of 9523 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
34%
34%
Reading/Language Arts Test Scores (% Proficient)
57%
47%
Science Test Scores (% Proficient)
25%
29%
Student-Teacher Ratio
26:1
21:1
American Indian
n/a
1%
Asian
8%
12%
Hispanic
67%
56%
Black
1%
5%
White
17%
20%
Hawaiian
n/a
n/a
Two or more races
7%
6%
All Ethnic Groups
Graduation Rate
96%
87%
Eligible for Free Lunch
49%
54%
Eligible for Reduced Lunch
14%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: The Fullerton Indians
Frequently Asked Questions
What is Fullerton Union High School's ranking?
Fullerton Union High School is ranked #3102 out of 9,523 schools, which ranks it among the top 50% of public schools in California.
What schools are Fullerton Union High School often compared to?
Fullerton Union High Schoolis often viewed alongside schools like Sunny Hills High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
34% of students have achieved math proficiency (compared to the 34% CA state average), while 57% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Fullerton Union High School?
The graduation rate of Fullerton Union High School is 96%, which is higher than the California state average of 87%.
How many students attend Fullerton Union High School?
1,880 students attend Fullerton Union High School.
What is the racial composition of the student body?
67% of Fullerton Union High School students are Hispanic, 17% of students are White, 8% of students are Asian, 7% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Fullerton Union High School?
Fullerton Union High School has a student ration of 26:1, which is higher than the California state average of 21:1.
What grades does Fullerton Union High School offer ?
Fullerton Union High School offers enrollment in grades 9-12
What school district is Fullerton Union High School part of?
Fullerton Union High School is part of Fullerton Joint Union High School District.
School Reviews
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