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16 schools in Castro Valley Unified

California · 9,548 students · 1 city

Whether you are tracking a high school, middle school, or elementary school, Castro Valley Unified's 16 public K-12 schools collectively enroll about 9,548 students (10 elementary, 2 middle, and 3 high).

4-year change in Castro Valley Unified

SY 2020-21 vs SY 2024-25
Total enrollment
9,548
+358 (+4%) vs SY 2020-21
School count
15
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages

How Castro Valley Unified ranks

Among districts
MeasureThis districtIn CaliforniaIn the US
State test proficiency
ranked highest first
63.1%#75 of 534N/A
Enrollment
ranked largest first
9,548#157 of 587#969 of 9,234
Number of schools
ranked most first
15#148 of 587N/A
Students per teacher
ranked fewest first
23.0:1#460 of 587#8,843 of 9,044
Free or reduced-price lunch share
ranked highest first
38.7%#444 of 587#5,671 of 8,164
Diversity index
ranked most diverse first
73.7%#12 of 530#112 of 6,853
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.

Inside Castro Valley Unified

State test results across the district's 12 scored schools run from Jensen Ranch Elementary at 82.8% proficient to Canyon Middle at 54.6%, a gap of 28.2 points. That is the 229th widest gap among 458 California districts with four or more scored schools.

Since 2017-18, the 15 district schools that reported both years went from 9,305 to 9,548 students (up 3%) and from 381 to 414 full-time teachers (up 9%), as of 2024-25.

Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.

About Castro Valley Unified

Across 16 schools, Castro Valley Unified hosts about 9,548 students in California. By footprint it is a compact district.

On the level-by-level breakdown, Castro Valley Unified is built around 10 elementary, 2 middle, 3 high schools, and 1 combined or other.

Trend over the past 4 years. Across the same 4-year window, public-school enrollment expanded 4%: 9,190 students in SY 2020-21 versus 9,548 in SY 2024-25.

On allk12, the community for Castro Valley Unified discusses sports rivalries, cross-district programs, and shared facilities. Members of the local community share what they see day-to-day.

Frequently asked questions

How many schools are in Castro Valley Unified?
Castro Valley Unified operates 16 public K-12 schools in California, serving approximately 9,548 students.
What is the mix of elementary, middle, and high schools in Castro Valley Unified?
Castro Valley Unified includes 10 elementary schools, 2 middle schools, 3 high schools, and 1 combined-grade school.
What is the largest school in Castro Valley Unified?
Castro Valley High is the largest public school in Castro Valley Unified by enrollment, with approximately 2,874 students.
What grade levels does Castro Valley Unified serve?
Castro Valley Unified serves students from kindergarten through grade 12 across 16 schools.