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Castro Valley High

Public Grades 9-12
393rd
SchoolDigger Rank ?
of 2,135 California High Schools
Better than 82% of California high schools
Summary

Castro Valley High is a public high school in Castro Valley, California, serving grades 9–12 in an East Bay community, with 2,874 students. It pairs strong completion outcomes—a 98% graduation rate in 2025–2026—with test results that are high by state standards. The key finding is that it leads nearby schools in all three reported all-grades test subjects, although its scores are below its district’s averages in every subject.

Among nine nearby schools with reported scores, Castro Valley High led in English language arts (ELA), math, and science, scoring 60%, 43%, and 49%. The next-highest nearby scores were 51% at Hayward High in ELA, and 27% in math and 34% in science at Arroyo High; the school’s leads were 9, 16, and 16 percentage points. Its scores were 11 points above California’s in ELA, 4 points above in math, and 13 points above in science. But compared with Castro Valley Unified, it was 6 points lower in ELA, 16 lower in math, and 2 lower in science. Graduation is another strength: the rate was 98%, versus 97% for the district and 88% statewide; only nearby East Bay Arts High had a higher reported rate. Attendance is less favorable against the district: chronic absenteeism was 14%, compared with 12% districtwide, though below the state’s 18%.

Test results have fallen since 2022–2023: ELA declined 12 points, math 10, and science 3, while state results rose. As a result, the school’s lead over the state narrowed by 14 points in ELA, 13 in math, and 9 in science. SchoolDigger still ranks it in the 82nd statewide percentile with 4 stars, down from the 92nd percentile and 5 stars in 2022–2023; it remains ahead of nearby schools with rank histories, with Arroyo High next at the 53rd percentile. SchoolDigger’s ranking for how well it serves Special Education Students was at the 42nd percentile, versus 82nd overall, and had fallen from the 86th percentile in 2023–2024. Its ranking for how well it serves Hispanic Students was at the 54th percentile. The 2024–2025 free/reduced lunch eligible rate was 40%; the supplied data identifies California as a statewide-free-meals state. The student-teacher ratio was 23.5, second-highest among four nearby comprehensive high schools with reported ratios, whose average was 21.5.

2,874
Students ?
23.5
Student/teacher ratio ?
$15,863
Per pupil spending ?
40.0%
Free/reduced lunch eligible (2024-25) ?
All students in California receive free school meals.
 19400 Santa Maria Ave.
       Castro Valley, CA  94546-3400

(510) 537-5910

District: Castro Valley Unified


Feeder schools for Castro Valley High:

Elementary:    Castro Valley Elementary
    Chabot Elementary
    Independent Elementary
    Jensen Ranch Elementary
    More...
Middle:    Canyon Middle
    Creekside Middle
Racial breakdown:

Asian:
36.0%
Hispanic:
25.5%
White:
20.7%
more
 See top rated California high schools

 Compare Castro Valley High to nearby high schools!
At a glance
▬ Ranking trend: Holding steady — 86th percentile in 2016 → 82nd in 2026
Strengths
✓Test scores above the California average (50% vs 42% meeting standards)
✓Ranks in the top 18% of California high schools
✓98% graduate in 4 years — above the California average (88%)
Worth a look
!Some student groups rank well below the school's overall statewide standing
!Large classes — about 24 students per teacher
Students meeting standards (2025-2026) ?
This school50%
District avg60%
California avg42%
393rd of 2,135
California public high schools ?
Top 18%▼ down 5 pts since 2016
From top 14% (2016) to top 18% (2026)
See the entire ranking list of California High Schools →
★★★★★
SchoolDigger rating ?
1st of 2High Schools in the Castro Valley Unified
244th of 1,530Castro Valley Unified among California districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankCalifornia percentileRating
202680.6393 of 213581.6%★★★★☆
202588.6226 of 216289.5%★★★★☆
202489.8234 of 215989.2%★★★★☆
202392.7178 of 217091.8%★★★★★
202294.2132 of 212393.8%★★★★★
202194.662 of 129095.2%★★★★★
201988.8197 of 213390.8%★★★★★
201889.9205 of 201789.8%★★★★☆
201786.9265 of 202186.9%★★★★☆
201685.4276 of 203986.5%★★★★☆
201586.8238 of 199488.1%★★★★☆
201363.3454 of 242681.3%★★★★☆
201266.4385 of 235483.6%★★★★☆
201165.7382 of 236783.9%★★★★☆
201070.5279 of 228187.8%★★★★☆
200968.7272 of 223887.8%★★★★☆
200873.1215 of 211789.8%★★★★☆
200769.5268 of 206387.0%★★★★☆
200677.0164 of 196891.7%★★★★★
200575.7153 of 190192.0%★★★★★
200480.470 of 165395.8%★★★★★

African American

YearAvg scoreStatewide rankCalifornia percentileRating
202656.9178 of 49263.8%★★★☆☆
202567.9133 of 52374.6%★★★★☆
202470.1118 of 51777.2%★★★★☆
202359.8172 of 52167.0%★★★☆☆
202286.847 of 52291.0%★★★★★
201973.1121 of 59279.6%★★★★☆
201882.293 of 58284.0%★★★★☆

Asian

YearAvg scoreStatewide rankCalifornia percentileRating
202654.1314 of 57545.4%★★☆☆☆
202568.0229 of 58560.9%★★★☆☆
202462.9255 of 57355.5%★★★☆☆
202369.8206 of 59165.1%★★★☆☆
202273.3169 of 58170.9%★★★★☆
201962.7242 of 58258.4%★★★☆☆
201877.5140 of 58175.9%★★★★☆

Disabled

YearAvg scoreStatewide rankCalifornia percentileRating
202278.7140 of 116187.9%★★★★☆
201973.1187 of 111783.3%★★★★☆
201897.045 of 105295.7%★★★★★

English Language Learner

YearAvg scoreStatewide rankCalifornia percentileRating
202460.0191 of 108582.4%★★★★☆
202390.328 of 106497.4%★★★★★
202266.3136 of 104487.0%★★★★☆
201969.0123 of 94186.9%★★★★☆
201897.330 of 93896.8%★★★★★

Female

YearAvg scoreStatewide rankCalifornia percentileRating
202679.3357 of 186480.8%★★★★☆
202584.8257 of 190686.5%★★★★☆
202490.2176 of 191590.8%★★★★★
202389.9189 of 191590.1%★★★★★
202294.4100 of 185894.6%★★★★★
202193.755 of 105494.8%★★★★★
201987.2198 of 183389.2%★★★★☆
201887.3211 of 176088.0%★★★★☆

Hispanic

YearAvg scoreStatewide rankCalifornia percentileRating
202652.0860 of 188054.3%★★★☆☆
202568.1529 of 190072.2%★★★★☆
202473.5412 of 190278.3%★★★★☆
202379.2327 of 191782.9%★★★★☆
202289.9130 of 186193.0%★★★★★
201977.3305 of 181483.2%★★★★☆
201883.7254 of 174285.4%★★★★☆

Low Socio Economic Status

YearAvg scoreStatewide rankCalifornia percentileRating
202668.6567 of 199771.6%★★★★☆
202583.4270 of 201386.6%★★★★☆
202481.3309 of 202684.7%★★★★☆
202387.0214 of 203089.5%★★★★☆
202294.092 of 194395.3%★★★★★
202190.186 of 112692.4%★★★★★
201986.5185 of 193790.4%★★★★★
201885.5231 of 186287.6%★★★★☆

Male

YearAvg scoreStatewide rankCalifornia percentileRating
202676.4421 of 193078.2%★★★★☆
202587.3224 of 194288.5%★★★★☆
202486.6257 of 194886.8%★★★★☆
202392.7154 of 196392.2%★★★★★
202291.9153 of 191692.0%★★★★★
202194.956 of 112295.0%★★★★★
201986.3226 of 188088.0%★★★★☆
201889.9183 of 183490.0%★★★★★

Multi-racial

YearAvg scoreStatewide rankCalifornia percentileRating
202650.8302 of 58848.6%★★☆☆☆
202562.0222 of 57761.5%★★★☆☆
202461.3223 of 57461.1%★★★☆☆
202374.8125 of 54176.9%★★★★☆
202267.7163 of 51568.3%★★★☆☆
201963.2155 of 42263.3%★★★☆☆
201859.9154 of 36657.9%★★★☆☆

Special Education

YearAvg scoreStatewide rankCalifornia percentileRating
202635.8718 of 123541.9%★★☆☆☆
202561.0347 of 125272.3%★★★★☆
202478.0169 of 121686.1%★★★★☆
202357.5329 of 119772.5%★★★★☆

White

YearAvg scoreStatewide rankCalifornia percentileRating
202666.7390 of 113065.5%★★★☆☆
202563.4425 of 115563.2%★★★☆☆
202475.5272 of 117376.8%★★★★☆
202381.8200 of 119383.2%★★★★☆
202286.3119 of 120490.1%★★★★★
201977.5221 of 122281.9%★★★★☆
201878.8244 of 117379.2%★★★★☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Disabled (2022)88th percentile-6 vs school
English Language Learner (2024)82nd percentile-7 vs school
Female (2026)81st percentile~ school
Male (2026)78th percentile-3 vs school
Low Socio Economic Status (2026)72nd percentile-10 vs school
White (2026)65th percentile-16 vs school
African American (2026)64th percentile-18 vs school
Hispanic (2026)54th percentile-27 vs school
Multi-racial (2026)49th percentile-33 vs school
Asian (2026)45th percentile-36 vs school
Special Education (2026)42nd percentile-40 vs school
By subject vs California (2025-2026) ?
English Language Arts/Literacy60%+11 vs state
Science49%+13 vs state
Mathematics43%+4 vs state

5.0
1 rating · 1 written review
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by a parent
Monday, January 28, 2019

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Frequently Asked Questions about Castro Valley High

Students at Castro Valley High are 36% Asian, 25% Hispanic, 21% White, 12% Two or more races, 5% African American.

Castro Valley High ranks 393rd of 2135 California high schools. SchoolDigger rates this school 4 stars out of 5.

In the 2024-25 school year, 2,874 students attended Castro Valley High.

Castro Valley High is fed by the following schools:

Elementary : Castro Valley Elementary
Elementary : Chabot Elementary
Elementary : Independent Elementary
Elementary : Jensen Ranch Elementary
Elementary : Marshall Elementary
Elementary : Palomares Elementary
Elementary : Proctor Elementary
Elementary : Stanton Elementary
Elementary : Vannoy Elementary
Middle : Canyon Middle
Middle : Creekside Middle

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Latest California data All new data »
2024–25 school spending data (updated)NewNov 2, 2026
2013–14 through 2024–25 immunization rates (updated)Oct 19, 2026
2025–26 attendance data, dropout rates & graduation ratesOct 15, 2026
2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresOct 15, 2026


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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