Serving 4,393 students in grades Kindergarten-12, Granite Mountain Charter ranks in the bottom 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 25% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 43% (which is lower than the California state average of 47%).
The student-teacher ratio of 27:1 is higher than the California state level of 21:1.
Minority enrollment is 65% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- School Type: Charter School
- Grades: Kindergarten-12
- Enrollment: 4,393 students
- Student-Teacher Ratio: 27:1
- Minority Enrollment: 65%
- Graduation Rate: 85-89% (Top 50% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 25% (Btm 50%)
- Reading Proficiency: 43% (Top 50%)
- Science Proficiency: 28% (Top 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Granite Mountain Charter's student population of 4,393 students has grown by 33% over five school years.
The teacher population of 164 teachers has grown by 62% over five school years.
School Type
Grades Offered
Grades Kindergarten-12
Total Students
4,393 students
Total Classroom Teachers
164 teachers
School Rankings
Granite Mountain Charter ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Granite Mountain Charter is 0.64, which is more 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
#4974 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
25%
34%
Reading/Language Arts Test Scores (% Proficient)
43%
47%
Science Test Scores (% Proficient)
28%
29%
Student-Teacher Ratio
27:1
21:1
American Indian
n/a
1%
Asian
5%
12%
Hispanic
48%
56%
Black
3%
5%
White
35%
20%
Hawaiian
n/a
n/a
Two or more races
9%
6%
All Ethnic Groups
Graduation Rate
85-89%
87%
Eligible for Free Lunch
35%
54%
Eligible for Reduced Lunch
5%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Granite Mountain Charter's ranking?
Granite Mountain Charter is ranked #4974 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Granite Mountain Charter often compared to?
Granite Mountain Charteris often viewed alongside schools like Southern California Flex Academy, Mariana Academy by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
25% of students have achieved math proficiency (compared to the 34% CA state average), while 43% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Granite Mountain Charter?
The graduation rate of Granite Mountain Charter is 85-89%, which is lower than the California state average of 87%.
How many students attend Granite Mountain Charter?
4,393 students attend Granite Mountain Charter.
What is the racial composition of the student body?
48% of Granite Mountain Charter students are Hispanic, 35% of students are White, 9% of students are Two or more races, 5% of students are Asian, and 3% of students are Black.
What is the student-teacher ratio of Granite Mountain Charter?
Granite Mountain Charter has a student ration of 27:1, which is higher than the California state average of 21:1.
What grades does Granite Mountain Charter offer ?
Granite Mountain Charter offers enrollment in grades Kindergarten-12
What school district is Granite Mountain Charter part of?
Granite Mountain Charter is part of Granite Mountain Charter School District.
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