River Islands High School serves 512 students in grades 9-12.
The student-teacher ratio of 18:1 is lower than the California state level of 21:1.
Minority enrollment is 92% of the student body (majority Asian), which is higher than the California state average of 80% (majority Hispanic and Asian).
Quick Facts (2026)
- School Type: Charter School
- Grades: 9-12
- Enrollment: 512 students
- Student-Teacher Ratio: 18:1
- Minority Enrollment: 92%
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
River Islands High School ranks among the top 20% of public schools in California for:
Category
Attribute
Diversity
Student Attention
School Overview
River Islands High School's student population of 512 students has grown by 374% over five school years.
The teacher population of 28 teachers has grown by 211% over five school years.
School Type
Grades Offered
Grades 9-12
Total Students
512 students
Total Classroom Teachers
28 teachers
School Rankings
The diversity score of River Islands High School is 0.67, 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.
Student-Teacher Ratio
18:1
21:1
American Indian
1%
1%
Asian
48%
12%
Hispanic
30%
56%
Black
11%
5%
White
8%
20%
Hawaiian
1%
n/a
Two or more races
1%
6%
All Ethnic Groups
Eligible for Free Lunch
33%
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
How many students attend River Islands High School?
512 students attend River Islands High School.
What is the racial composition of the student body?
48% of River Islands High School students are Asian, 30% of students are Hispanic, 11% of students are Black, 8% of students are White, 1% of students are American Indian, 1% of students are Hawaiian, and 1% of students are Two or more races.
What is the student-teacher ratio of River Islands High School?
River Islands High School has a student ration of 18:1, which is lower than the California state average of 21:1.
What grades does River Islands High School offer ?
River Islands High School offers enrollment in grades 9-12
What school district is River Islands High School part of?
River Islands High School is part of River Islands High School District.
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