For the 2025-26 school year, there are 9 private schools serving 1,200 students in Castro Valley, CA (there are 16 public schools, serving 9,471 public students). 11% of all K-12 students in Castro Valley, CA are educated in private schools (compared to the CA state average of 10%).
The top ranked private school in Castro Valley, CA is Redwood Christian Elementary School.
The average acceptance rate is 95%, which is higher than the California private school average acceptance rate of 80%.
Top Ranked Castro Valley Private Schools (2025-26)
School
Location
Quick Facts
Redwood Christian Elementary School![Redwood Christian Elementary School Photo - Friendships that last a lifetime are made at Redwood Christian Elementary School.]( "Redwood Christian Elementary School Photo - Friendships that last a lifetime are made at Redwood Christian Elementary School.")
(Christian)
19300 Redwood Road
Castro Valley, CA 94546
(510) 889-7526
Castro Valley, CA 94546
(510) 889-7526
Gr: PK-5 | 660 students Avg. class size: 22 students Sports: 2 | Extracurrculars: 6 Tuition & acceptance rate listed
Early Bird Montessori School
Montessori School
4779 Heyer Ave
Castro Valley, CA 94546
(510) 538-7631
Castro Valley, CA 94546
(510) 538-7631
Gr: PK-K | 30 students
2490 Grove Way
Castro Valley, CA 94546
(510) 581-5088
Castro Valley, CA 94546
(510) 581-5088
Gr: NS | 108 students Tuition listed
2330 Pomar Vista Avenue
Castro Valley, CA 94546
(510) 317-8627
Castro Valley, CA 94546
(510) 317-8627
Gr: PK-5 | 142 students Avg. class size: 16 students Sports: 3 | Extracurrculars: 10 Tuition & acceptance rate listed
The Montessori Giving Tree
Montessori School
1914 Grove Way
Castro Valley, CA 94546
(510) 282-8375
Castro Valley, CA 94546
(510) 282-8375
Gr: K-8 | 14 students
Montessori School At Five Canyons
Montessori School
22781 Canyon Ct
Castro Valley, CA 94552
(510) 581-3729
Castro Valley, CA 94552
(510) 581-3729
Gr: K | 6 students
Our Lady Of Grace Catholic School![Our Lady Of Grace Catholic School Photo]( "Our Lady Of Grace Catholic School Photo")
(Catholic)
3427 Somerset Avenue
Castro Valley, CA 94546
(510) 581-3155
Castro Valley, CA 94546
(510) 581-3155
Gr: PK-8 | 207 students Sports: 2 Tuition & acceptance rate listed
Saybrook Learning Center
Daycare / Preschool
20375 Wisteria St
Castro Valley, CA 94546
(510) 581-2340
Castro Valley, CA 94546
(510) 581-2340
Gr: NS-PK | 12 students
Sterling West San Francisco Campus
(Christian)
19234 Lake Chabot Rd
Castro Valley, CA 94546
(510) 247-9235
Castro Valley, CA 94546
(510) 247-9235
Gr: 3-11 | 21 students
Castro Valley, California Private Schools (Closed)
School
Location
Quick Facts
Bright World Pre-school (Closed 2021)
Daycare / Preschool (Assembly of God)
20613 Stanton Avenue
Castro Valley, CA 94546
(510) 581-1580
Castro Valley, CA 94546
(510) 581-1580
Gr: PK-K | 39 students
Frequently Asked Questions
What are the top ranked private schools in Castro Valley, CA?
The top ranked private schools in Castro Valley, CA is Redwood Christian Elementary School.
How many private schools are located in Castro Valley?
9 private schools are located in Castro Valley.
How diverse are private schools in Castro Valley?
Castro Valley private schools are approximately 53% minority students, which is higher than the California private school average of 51%.
What percentage of students in Castro Valley go to private school?
11% of all K-12 students in Castro Valley are educated in private schools (compared to the CA state average of 10%).
What percentage of private schools are religiously affiliated in Castro Valley?
Which private schools in Castro Valley are often viewed compared to one another?
Popular comparisons of private schools in Castro Valley include: Early Bird Montessori School vs. Mission Hills Elementary School
Recent Articles
Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.
A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.
The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.
