Castro Valley High School

19400 Santa Maria Ave.
Castro Valley, CA 94546
(School attendance zone shown in map)
10/
10
Top 10%
Serving 2,799 students in grades 9-12, Castro Valley High School ranks in the top 10% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 58% (which is higher than the California state average of 33%). The percentage of students achieving proficiency in reading/language arts is 78% (which is higher than the California state average of 47%).
The student:teacher ratio of 23:1 is higher than the California state level of 22:1.
Minority enrollment is 76% of the student body (majority Asian), which is lower than the California state average of 79% (majority Hispanic).

Quick Stats (2024-25)

  • School Type: Magnet School
  • Grades: 9-12
  • Enrollment: 2,799 students
  • Student:Teacher Ratio: 23:1
  • Minority Enrollment: 76%
  • : 97% (Top 10% in CA)
  • : Top 10%
  • : 58% (Top 20%)
  • : 78% (Top 10%)
  • : 48% (Top 20%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

Top Rankings

Castro Valley High School ranks among the top 20% of public schools in California for:

School Overview

Castro Valley High School's student population of 2,799 students has stayed relatively flat over five school years.
The teacher population of 120 teachers has stayed relatively flat over five school years.
School Type
Grades Offered
Grades 9-12
Total Students
2,799 students
This chart displays total students of Castro Valley High School by year, with the latest 2022-23 school year data.
Gender %
This chart displays gender of Castro Valley High School
Total Classroom Teachers
120 teachers
This chart displays the total teachers of Castro Valley High School by year, with the latest 2022-23 school year data.
Students by Grade
This chart displays the students of Castro Valley High School by grade.

School Rankings

Castro Valley High School ranks within the top 10% of all 9,602 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Castro Valley High School is 0.75, which is more than the diversity score at state average of 0.64. The school's diversity has stayed relatively flat over five school years.
This School
State Level (CA)
#903 out of 9602 schools
(Top 10%)
This chart displays the overall school rank of Castro Valley High School, with the latest 2021-22 school year data.
58%
33%
This chart displays the percentage of students that scored at or above 'proficient' levels in Math of Castro Valley High School and the percentage of public school students that scored at or above 'proficient' levels in Math of public schools in California by year, with the latest 2021-22 school year data.
78%
47%
This chart displays the percentage of students that scored at or above 'proficient' levels in Reading/Language Arts of Castro Valley High School and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of California by year, with the latest 2021-22 school year data.
48%
29%
Student : Teacher Ratio
23:1
22:1
This chart displays the student teacher ratio of Castro Valley High School and the public school average student teacher ratio of California by year, with the latest 2022-23 school year data.
American Indian
n/a
1%
This chart displays the percentage of American Indian students in Castro Valley High School and percentage of American Indian public school students in California by year, with the latest 2008-09 school year data.
Asian
36%
12%
This chart displays the percentage of Asian students in Castro Valley High School and the percentage of Asian public school students in California by year, with the latest 2022-23 school year data.
Hispanic
24%
55%
This chart displays the percentage of Hispanic students in Castro Valley High School and the percentage of Hispanic public school students in California by year, with the latest 2022-23 school year data.
Black
5%
5%
This chart displays the percentage of Black students in Castro Valley High School and the percentage of Black public school students in California by year, with the latest 2022-23 school year data.
White
24%
21%
This chart displays the percentage of White students in Castro Valley High School and the percentage of White public school students in California by year, with the latest 2022-23 school year data.
Hawaiian
n/a
n/a
This chart displays the percentage of Hawaiian students in Castro Valley High School and the percentage of Hawaiian public school students in California by year, with the latest 2013-14 school year data.
Two or more races
11%
6%
This chart displays the percentage of students of two or more races in Castro Valley High School and the percentage of public school students of two or more races in California by year, with the latest 2022-23 school year data.
All Ethnic Groups
This chart displays the percentage breakdown of students of all ethnic groups in Castro Valley High School.
This chart displays the percentage breakdown of public school students of all ethnic groups in California.
0.75
This chart displays the diversity score of Castro Valley High School and the public school average diversity score of California by year, with the latest 2022-23 school year data.
97%
87%
This chart displays graduation rate of Castro Valley High School and public school graduation rate of California by year, with the latest 2021-22 school year data.
Eligible for Free Lunch
23%
51%
This chart displays the percentage of students who is eligible for free lunch in Castro Valley High School and the percentage of public school students who is eligible for free lunch in California by year, with the latest 2022-23 school year data.
Eligible for Reduced Lunch
12%
8%
This chart displays the percentage of students who is eligible for reduced lunch in Castro Valley High School and the percentage of public school students who is eligible for reduced lunch in California by year, with the latest 2022-23 school year data.
Source: National Center for Education Statistics (NCES), CA Dept. of Education

Frequently Asked Questions

What is Castro Valley High School's ranking?
Castro Valley High School is ranked #903 out of 9,602 schools, which ranks it among the top 10% of public schools in California.
What percent of students have achieved state testing proficiency in math and reading?
58% of students have achieved math proficiency (compared to the 33% CA state average), while 78% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Castro Valley High School?
The graduation rate of Castro Valley High School is 97%, which is higher than the California state average of 87%.
How many students attend Castro Valley High School?
2,799 students attend Castro Valley High School.
What is the racial composition of the student body?
36% of Castro Valley High School students are Asian, 24% of students are Hispanic, 24% of students are White, 11% of students are Two or more races, and 5% of students are Black.
What is the student:teacher ratio of Castro Valley High School?
Castro Valley High School has a student ration of 23:1, which is higher than the California state average of 22:1.
What grades does Castro Valley High School offer ?
Castro Valley High School offers enrollment in grades 9-12
What school district is Castro Valley High School part of?
Castro Valley High School is part of Castro Valley Unified School District.

School Reviews

3   5/29/2021
School is constantly asking for handouts. Its state funded... why are we asked persistently to donate to everything? It sounds like some of our budget surplus could go towards SCHOOLS.
- Posted by Parent - Bombcat
2   10/6/2012
This school has a bullying problem and esculates when you tell staff about it. So many students suffer in misery as there lives are made miserable. These girl students are very vicious and threaten other students to join in with their viciousness.
- Posted by Parent - Bubbl

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Quick Stats (2024-25)

  • School Type: Magnet School
  • Grades: 9-12
  • Enrollment: 2,799 students
  • Student:Teacher Ratio: 23:1
  • Minority Enrollment: 76%
  • : 97% (Top 10%)
  • : Top 10%
  • : 58% (Top 20%)
  • : 78% (Top 10%)
  • : 48% (Top 20%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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