Rialto High School is a public high school located in San Bernardino, California, with a Rialto postal address. that opened in September 1992.
Serving 2,623 students in grades 9-12, Rialto High School 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 16% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 37% (which is lower than the California state average of 47%).
The student-teacher ratio of 23:1 is higher than the California state level of 21:1.
Minority enrollment is 99% 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: 2,623 students
- Student-Teacher Ratio: 23:1
- Minority Enrollment: 99%
- Graduation Rate: 96% (Top 10% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 16% (Btm 50%)
- Reading Proficiency: 37% (Btm 50%)
- Science Proficiency: 14% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Rialto High School ranks among the top 20% of public schools in California for:
Category
Attribute
Graduation Rate
School Overview
Rialto High School's student population of 2,623 students has declined by 7% over five school years.
The teacher population of 114 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
2,623 students
Total Classroom Teachers
114 teachers
Year Founded
1992
Colors
White, Blue, Silver
School Rankings
Rialto High School 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 Rialto High School is 0.17, 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
#6635 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
16%
34%
Reading/Language Arts Test Scores (% Proficient)
37%
47%
Science Test Scores (% Proficient)
14%
29%
Student-Teacher Ratio
23:1
21:1
American Indian
n/a
1%
Asian
1%
12%
Hispanic
91%
56%
Black
6%
5%
White
1%
20%
Hawaiian
n/a
n/a
Two or more races
1%
6%
All Ethnic Groups
Graduation Rate
96%
87%
Eligible for Free Lunch
71%
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: Knight
Frequently Asked Questions
What is Rialto High School's ranking?
Rialto High School is ranked #6635 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Rialto High School often compared to?
Rialto High Schoolis often viewed alongside schools like Eisenhower High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
16% of students have achieved math proficiency (compared to the 34% CA state average), while 37% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Rialto High School?
The graduation rate of Rialto High School is 96%, which is higher than the California state average of 87%.
How many students attend Rialto High School?
2,623 students attend Rialto High School.
What is the racial composition of the student body?
91% of Rialto High School students are Hispanic, 6% of students are Black, 1% of students are Asian, 1% of students are White, and 1% of students are Two or more races.
What is the student-teacher ratio of Rialto High School?
Rialto High School has a student ration of 23:1, which is higher than the California state average of 21:1.
What grades does Rialto High School offer ?
Rialto High School offers enrollment in grades 9-12
What school district is Rialto High School part of?
Rialto High School is part of Rialto Unified School District.
In what neighborhood is Rialto High School located?
Rialto High School is located in the Rancho West neighborhood of Rialto, CA. There are 1 other public schools located in Rancho West.
School Reviews
Review Rialto 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.
