Serving 496 students in grades 9-12, Riverdale 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 20-24% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 55-59% (which is higher than the California state average of 47%).
The student-teacher ratio of 15:1 is lower than the California state level of 21:1.
Minority enrollment is 90% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (26-27)
- Grades: 9-12
- Enrollment: 496 students
- Student-Teacher Ratio: 15:1
- Minority Enrollment: 90%
- Graduation Rate: ≥95% (Top 20% in CA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 20-24% (Btm 50%)
- Reading Proficiency: 55-59% (Top 30%)
- Science Proficiency: 15-19% (Btm 50%)
- Attendance Zone: Riverdale High's attendance zone covers the entire school district of Riverdale, CA, encompassing approximately 133.2 square miles. The typical drive to the school is 10-15 minutes, with an average distance of 6 miles to the nearest edge and a maximum distance of 16.3 miles to the furthest edge of the zone.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Riverdale High School ranks among the top 20% of public schools in California for:
Category
Attribute
Graduation Rate
School Overview
Riverdale High School's student population of 496 students has declined by 7% over five school years.
The teacher population of 33 teachers has grown by 6% over five school years.
Grades Offered
Grades 9-12
Total Students
496 students
Showing 2015–2025. Full 30-year historical data available below ↓
Total Classroom Teachers
33 teachers
Showing 2014–2025. Full 30-year historical data available below ↓
School Calendar
School Motto
School of Choice
School Rankings
Riverdale 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 Riverdale High School is 0.18, 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
#4035 out of 9523 schools
(Top 50%)
(Top 50%)
Showing 2013–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
20-24%
34%
Showing 2013–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
55-59%
47%
Showing 2012–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
15-19%
29%
Student-Teacher Ratio
15:1
21:1
Showing 2014–2025. Full 30-year historical data available below ↓
Hispanic
90%
56%
Showing 2015–2025. Full 30-year historical data available below ↓
White
10%
20%
Showing 2015–2025. Full 30-year historical data available below ↓
All Ethnic Groups
Showing 2015–2025. Full 30-year historical data available below ↓
Graduation Rate
≥95%
86.2%
Showing 2014–2023. Full 13-year historical data available below ↓
Chronically Absent Students
(22-23)9.7%
27.7%
Eligible for Free Lunch
79%
54%
Showing 2015–2025. Full 30-year historical data available below ↓
Eligible for Reduced Lunch
12%
8%
Showing 2015–2025. Full 27-year historical data available below ↓
School Statewide Testing
School District Name
Sports
School Mascot
Cowboy
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Profile last updated: 01/27/2026
Frequently Asked Questions
What is Riverdale High School's ranking?
Riverdale High School is ranked #4035 out of 9,523 schools, which ranks it among the top 50% of public schools in California.
What percent of students have achieved state testing proficiency in math and reading?
20-24% of students have achieved math proficiency (compared to the 34% CA state average), while 55-59% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Riverdale High School?
The graduation rate of Riverdale High School is 95%, which is higher than the California state average of 86.2%.
How many students attend Riverdale High School?
496 students attend Riverdale High School.
What is the racial composition of the student body?
90% of Riverdale High School students are Hispanic, and 10% of students are White.
What is the student-teacher ratio of Riverdale High School?
Riverdale High School has a student ration of 15:1, which is lower than the California state average of 21:1.
What grades does Riverdale High School offer ?
Riverdale High School offers enrollment in grades 9-12
What school district is Riverdale High School part of?
Riverdale High School is part of Riverdale Joint Unified School District.
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