Centennial Montessori School
San Mateo, California 94401
How it compares in San Mateo
Centennial Montessori School is one of 10 Montessori schools in San Mateo, and one of only 1 with full AMS or AMI accreditation. Parents rate it 5★ against a 5★ average across the 6 rated schools in the city. San Mateo also has 2 public, tuition-free Montessori options.
All San Mateo schools → Best Montessori in San Mateo → Cost calculator →
Visit & contact
- Address
- 27 10th Avenue
San Mateo, CA 94401 - Phone
- (650) 340-1230
- [email protected]
- Website
- centennialmontessori.org ↗
Facts & figures
From government filings and independent surveys — not the school's own marketing.
- Student-teacher ratio
10.6 : 1
95 students · 9 full-time-equivalent teachers
U.S. Dept. of Education private school survey, 2021–22
- School day
7.2 hours/day · 175 days/year
U.S. Dept. of Education private school survey, 2021–22
- State license
Licensed child care center
Capacity 60 · licensed since 2006
California Community Care Licensing, 2025
- Staff
5 full-time & 1 part-time teachers · 2 administrators
California private school affidavit, 2024-25
Programs, tuition & schedule
Quoted from centennialmontessori.org."The most important aspect of our program is our faculty. It is through our teachers, their nurturing relationships, and a true understanding of the individual that each child gains confidence."
Programs offered
- Young Children's Community — 18 months to 3 years
- Children's House — 3 to 6 years
- Elementary — 6 to 12 years
- Parenting Center — for parents & caregivers
Source: school's homepage ↗
Schedule
Monday-Friday; academic year begins late August
Some fields above are blank because they weren't published on the school's site. Call or email the school for tuition, admissions, and other details not listed here.
How to apply
Quoted from centennialmontessori.org.- Contact admissions
Source: school's Admissions page ↗
About Centennial Montessori School
Centennial Montessori School is a Montessori school (private) in San Mateo, California serving grades PK-6. The most important aspect of our program is our faculty. It is through our teachers, their nurturing relationships, and a true understanding of the individual that each child gains confidence.
Where is Centennial Montessori School located? ⌃
27 10th Avenue, San Mateo, CA 94401
What is the phone number for Centennial Montessori School? ⌃
Centennial Montessori School can be reached at (650) 340-1230.
Is Centennial Montessori School accredited? ⌃
Centennial Montessori School lists the following accreditations or affiliations on its website: AMI (school member).
How do you apply to Centennial Montessori School? ⌃
Centennial Montessori School's admissions process: Contact admissions.
What are the hours at Centennial Montessori School? ⌃
Centennial Montessori School operates on these hours: Monday-Friday; academic year begins late August.
What ages does Centennial Montessori School serve? ⌃
Centennial Montessori School serves grades PK-6.
What is the website for Centennial Montessori School? ⌃
The official website is centennialmontessori.org.