Centennial Montessori School
Montessori school · Pre-K only
San Mateo, CA
6 10th Ave, San Mateo, CA 94401
Overall grade: A
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- A-Years serving families
What stands out
- Small classes: about 6 students per teacher
- Serving families in San Mateo since at least 2011
Centennial Montessori School is a Montessori school in San Mateo, California, for pre-K. It has about 56 students and around 6 students per teacher. Enrollment has grown about 273% since 2011–12. Students attend about 7 hours a day, 175 days a year.
At a glance
- Grades
- Pre-K only
- Students
- 56
- Teachers
- 9.8 (full-time equivalent)
- Students per teacher
- 5.7
- Boys and girls
- Coed · 32 girls, 24 boys
- Religious affiliation
- None (nonsectarian)
- Program
- Montessori
- School day
- About 7 hours
- School year
- 175 days
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 56% of preschool programs nationwide (6 students per teacher).
- Larger than 73% of preschool programs nationwide.
- Compared with 79 preschool programs nationwide.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- Association Montessori Internationale
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 Centennial Montessori School
What grades does Centennial Montessori School serve?
Centennial Montessori School serves pre-K only.
How many students attend Centennial Montessori School?
About 56 students, with 6 students per teacher, according to official records.
How much is tuition at Centennial Montessori School?
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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