Top Rankings
Castro Valley Unified School District ranks among the top 20% of public school district in California for:
Category
Attribute
Overall Rank
Highest overall rank (Top 10%)
Math Proficiency
Highest math proficiency (Top 10%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Science Proficiency
Highest science proficiency (Top 20%)
Graduation Rate
Highest graduation rate (Top 5%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2025 school year, there are 4 public high schools serving 3,027 students in Castro Valley Unified School District. This district's average high testing ranking is 10/10, which is in the top 10% of public high schools in California.
Public High Schools in Castro Valley Unified School District have an average math proficiency score of 49% (versus the California public high school average of 28%), and reading proficiency score of 72% (versus the 51% statewide average).
Public High School in Castro Valley Unified School District have a Graduation Rate of 95%, which is more than the California average of 86%.
The school with highest graduation rate is Castro Valley High School, with 96% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 78% of the student body (majority Asian), which is less than the California public high school average of 79% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
16 Schools
2,817 Schools
# Students
9,471 Students
2,139,525 Students
# Teachers
405 Teachers
100,737 Teachers
Student-Teacher Ratio
23:1
23:1
Student By Grade
District Rank
Castro Valley Unified School District, which is ranked #158 of all 1,910 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 95% has stayed relatively flat over five school years.
Overall District Rank
#161 out of 1932 school districts
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
58%
34%
Reading/Language Arts Test Scores (% Proficient)
68%
47%
Science Test Scores (% Proficient)
50%
29%
Graduation Rate
95%
87%
Students by Ethnicity:
Diversity Score
0.75
0.63
% American Indian
n/a
1%
% Asian
37%
11%
% Hispanic
25%
56%
% Black
4%
5%
% White
20%
22%
% Hawaiian
n/a
n/a
% Two or more races
14%
5%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $17,052 in this school district is less than the state median of $19,974. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $17,602 is less than the state median of $18,396. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$162 MM
$116,387 MM
Spending
$167 MM
$107,188 MM
Revenue / Student
$17,052
$19,974
Spending / Student
$17,602
$18,396
Best Castro Valley Unified School District Public High Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Castro Valley High School
(Math: 52% | Reading: 78%)
Rank:
Rank:
9/
Top 20%10
19400 Santa Maria Ave.
Castro Valley, CA 94546
(510) 537-5910
Castro Valley, CA 94546
(510) 537-5910
Gr: 9-12 | 2,842 students Student-Teacher Ratio: 24:1 Minority enrollment: 77%
Rank: #22.
Castro Valley Virtual Academy
(Math: 21-39% | Reading: 60-64%)
Rank:
Rank:
7/
Top 50%10
18400 Clifton Way
Castro Valley, CA 94546
(510) 537-3193
Castro Valley, CA 94546
(510) 537-3193
Gr: K-12 | 47 students Student-Teacher Ratio: 12:1 Minority enrollment: 74%
Rank: #33.
Redwood Continuation High School
Alternative School
(Math: ≤10% | Reading: 20-29%)
Rank:
Rank:
1/
Bottom 50%10
18400 Clifton Way
Castro Valley, CA 94546
(510) 537-3193
Castro Valley, CA 94546
(510) 537-3193
Gr: 9-12 | 118 students Student-Teacher Ratio: 17:1 Minority enrollment: 88%
Rank: n/an/a
Roy A. Johnson High School
Special Education School
18400 Clifton Way
Castro Valley, CA 94546
(510) 537-3000
Castro Valley, CA 94546
(510) 537-3000
Gr: 9-12 | 20 students Student-Teacher Ratio: 10:1 Minority enrollment: 75%
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