One School Global-San Francisco Campus
Independent school · Grades 3–11
Castro Valley, CA
19234 Lake Chabot Rd, Castro Valley, CA 94546
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- BYears serving families
What stands out
- Small classes: about 7 students per teacher
One School Global-San Francisco Campus is an independent private school in Castro Valley, California, for students from 3rd grade through 11th grade. It has about 30 students and around 7 students per teacher. Enrollment has grown about 43% since 2017–18. Students attend about 6.5 hours a day, 180 days a year.
At a glance
- Grades
- Grades 3–11
- Students
- 30
- Teachers
- 4.4 (full-time equivalent)
- Students per teacher
- 6.8
- Boys and girls
- Coed · 12 girls, 18 boys
- Religious affiliation
- None (nonsectarian)
- Program
- Career and technical
- School day
- About 6.5 hours
- School year
- 180 days
- Graduates going to 4-year colleges
- About 0% (the school's estimate for the class before the survey)
Reviews
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How it compares
- A smaller school: fewer students than 78% of independent schools in California.
- Compared with 156 independent schools in California.
Students by survey year
Total students reported in official records since 2017–18.
Students by grade
Student body
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about One School Global-San Francisco Campus
What grades does One School Global-San Francisco Campus serve?
One School Global-San Francisco Campus serves grades 3–11.
How many students attend One School Global-San Francisco Campus?
About 30 students, with 7 students per teacher, according to official records.
How much is tuition at One School Global-San Francisco Campus?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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