Very Good
#2690 of 9,539 schools in CA
Top 28% in state
Castro Valley High
High School · Castro Valley Unified
PO Box 2146, Castro Valley, CA 94546
Enrollment
2,842
Student-Teacher
23.9:1
Score
7.4
Grades
9th – 12th
Enrollment
2,842
Student-Teacher
23.9:1
Score
7.4
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#2,690 of 9,539
In Castro Valley
#8 of 14
public schools
In district
#8 of 14
Castro Valley Unified
Equity
8.5 / 10
Excellent
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Castro Valley High
High School in Castro Valley · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Redwood Christian Elementary School
0.2 mi away. Use as a geographic alternative in the same move search.
Our Lady of Grace Catholic School
0.4 mi away. Use as a geographic alternative in the same move search.
About Castro Valley High
Castro Valley High is a public high school in Castro Valley, CA, part of Castro Valley Unified. Castro Valley High serves approximately 2,842 students, and covers grades 9th-12th, and has a 23.9:1 student-teacher ratio. Castro Valley High has a current MySchoolScout rating of 7.4 out of 10 and ranks #2,690 of 9,539 schools in CA.
Structured state assessment records for Castro Valley High show 66% math proficiency (multi-year average, 2009-2024) and 72% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 7.4 · Very Good
- District avg 6.3
- CA avg 6.5
What Parents Should Know
Castro Valley High is a large school: 2,842 students. Size usually brings more course choices and activities than a smaller school can staff, but kids can also blend into the crowd. Ask how the school keeps students known and supported.
Castro Valley High runs 23.9:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Castro Valley High — Students at Castro Valley High score 58% proficient, which is above what's typical for similar communities (expected: 52%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
39.5%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 30 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.3/10.
How Castro Valley High Compares
See how Castro Valley High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
PO Box 2146, Castro Valley, CA 94546
Nearby Alternatives
Families considering Castro Valley High may also want to explore other high schools in the area. Proctor Elementary (rated 8.4/10, 0.9 miles away), which scores slightly higher. Another option is Creekside Middle (rated 8.4/10, 0.9 miles away), which scores slightly higher. Additionally, Chabot Elementary (rated 8.3/10, 0.7 miles away), which scores slightly higher. For more schools in Castro Valley, see our Castro Valley schools guide .
Nearby Schools
20 within 1.5 mi| School | Distance | Rating |
|---|---|---|
| REDWOOD CHRISTIAN ELEMENTARY SCHOOL Castro Valley | 0.2 mi | 5.8 |
| OUR LADY OF GRACE CATHOLIC SCHOOL Castro Valley | 0.4 mi | 6.4 |
| Our Lady of Grace School Castro Valley | 0.4 mi | — |
| Castro Valley Elementary Castro Valley | 0.5 mi | 7.6 |
| Marshall Elementary Castro Valley | 0.7 mi | 7.8 |
| Proctor Elementary Castro Valley | 0.9 mi | 8.4 |
| OneSchool Global - San Francisco Castro Valley | 0.7 mi | — |
| ANCHOR EDUCATION Castro Valley | 0.7 mi | 4.7 |
| Chabot Elementary Castro Valley | 0.7 mi | 8.3 |
| Creekside Middle Castro Valley | 0.9 mi | 8.4 |
| Stanton Elementary Castro Valley | 1.0 mi | 5.7 |
| Vannoy Elementary Castro Valley | 1.0 mi | 7.0 |
| Redwood Continuation High Castro Valley | 1.1 mi | 5.2 |
| Roy A. Johnson High Castro Valley | 1.1 mi | — |
| Castro Valley Virtual Academy Castro Valley | 1.1 mi | 7.6 |
| Rising Star Sped Academy Hayward | 1.3 mi | — |
| THE MONTESSORI GIVING TREE Castro Valley | 1.4 mi | — |
| MISSION HILLS SCHOOL Castro Valley | 1.2 mi | 5.1 |
| Canyon Middle Castro Valley | 1.4 mi | 6.8 |
| Independent Elementary Castro Valley | 1.5 mi | 6.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94546 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$125,780
Median Home Value
$976,300
Median Rent
$2,506/mo
Population
45,848
College Educated
41.4%
Homeownership
65.8%
Avg Commute
33.7 min
Poverty Rate
7.4%
Median Age
42.1
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Alexander Hamilton Senior High Los Angeles, CA | 7.4 |
| Chico High Chico, CA | 7.4 |
| Corona High Corona, CA | 7.4 |
| Downey High Downey, CA | 7.4 |
| Folsom High Folsom, CA | 7.4 |
| Heritage High Brentwood, CA | 7.4 |
Frequently Asked Questions
Common questions about Castro Valley High
What grades does Castro Valley High serve?
Castro Valley High serves students in grades 9th through 12th.
How many students attend Castro Valley High?
Castro Valley High has an enrollment of approximately 2,842 students.
What is the student-teacher ratio at Castro Valley High?
The student-teacher ratio at Castro Valley High is 23.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Castro Valley High rank in CA?
Castro Valley High ranks #2,690 of 9,539 schools in CA.
What is Castro Valley High's MySchoolScout rating?
Castro Valley High has a current MySchoolScout rating of 7.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Castro Valley High?
Based on loaded state assessment records, Castro Valley High has 66% math proficiency (multi-year average, 2009-2024) and 72% reading/ELA proficiency (multi-year average, 2009-2024).
Is Castro Valley High a charter school?
No, Castro Valley High is not a charter school. It is a traditional public school operated by the local school district.
Is Castro Valley High a Title I school?
No, Castro Valley High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Castro Valley High?
39.5% of students at Castro Valley High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 2,842
- Student-Teacher Ratio
- 23.9:1
- Teachers (FTE)
- 119
- Free/Reduced Lunch
- 39.5%
- Type
- regular
- Setting
- Large Suburb
- County
- Alameda County
- Chronic Absenteeism (SY 2022-23)
- 15.2%
- Phone
- (510) 537-5910
- 4-Year Graduation
- 96.0%
Resources & Links
District
Castro Valley Unified- District Enrollment
- 9,489
- Schools in District
- 16
- Per-Pupil Spending
- $14,627
- District Rank
- #8 of 14
Other Schools in This District
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