Granite Hills High School is a public comprehensive high school in El Cajon, California. It serves students in grades nine through twelve. Opened in 1960, Granite Hills is one of 13 high schools in the Grossmont Union High School District. GHHS is the home of the Eagles.
Serving 2,331 students in grades 9-12, Granite Hills High School ranks in the top 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 23% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 58% (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 51% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 2,331 students
- Student-Teacher Ratio: 24:1
- Minority Enrollment: 51%
- Graduation Rate: 88% (Top 50% in CA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 23% (Btm 50%)
- Reading Proficiency: 58% (Top 30%)
- Science Proficiency: 13% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Granite Hills High School's student population of 2,331 students has stayed relatively flat over five school years.
The teacher population of 97 teachers has grown by 5% over five school years.
Grades Offered
Grades 9-12
Total Students
2,331 students
Total Classroom Teachers
97 teachers
Year Founded
1960
Colors
Blue, Navy Blue
School Calendar
School Motto
We are a community of active learners empowered to navigate today's challenges and create opportunities for tomorrow.
School Rankings
Granite Hills 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 Granite Hills High School is 0.61, 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
#3929 out of 9523 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
23%
34%
Reading/Language Arts Test Scores (% Proficient)
58%
47%
Science Test Scores (% Proficient)
13%
29%
Student-Teacher Ratio
24:1
21:1
American Indian
1%
1%
Asian
4%
12%
Hispanic
39%
56%
Black
2%
5%
White
49%
20%
Hawaiian
n/a
n/a
Two or more races
5%
6%
All Ethnic Groups
Graduation Rate
88%
87%
Eligible for Free Lunch
37%
54%
Eligible for Reduced Lunch
21%
8%
School Statewide Testing
School District Name
Grossmont Union High School District
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Granite Hills High School's ranking?
Granite Hills High School is ranked #3929 out of 9,523 schools, which ranks it among the top 50% of public schools in California.
What schools are Granite Hills High School often compared to?
Granite Hills High Schoolis often viewed alongside schools like West Hills High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
23% of students have achieved math proficiency (compared to the 34% CA state average), while 58% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Granite Hills High School?
The graduation rate of Granite Hills High School is 88%, which is higher than the California state average of 87%.
How many students attend Granite Hills High School?
2,331 students attend Granite Hills High School.
What is the racial composition of the student body?
49% of Granite Hills High School students are White, 39% of students are Hispanic, 5% of students are Two or more races, 4% of students are Asian, 2% of students are Black, and 1% of students are American Indian.
What is the student-teacher ratio of Granite Hills High School?
Granite Hills High School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Granite Hills High School offer ?
Granite Hills High School offers enrollment in grades 9-12
What school district is Granite Hills High School part of?
Granite Hills High School is part of Grossmont Union High School District.
School Reviews
Review Granite Hills 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
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.
