Fontana, California 92336 On Google Maps →
St. Mary's Montessori School
- PK-K
- Grades
- Toddler · Primary · Elementary
- Levels
- 145 students
- Enrollment
In context
How it compares in Fontana
St. Mary's Montessori School is one of 2 Montessori schools in Fontana, and one of only 1 with full AMS or AMI accreditation.
Facts & figures
From government filings and independent surveys — not the school's own marketing.
- Classrooms
3 Infant/Toddler · 4 Primary
7 lead teachers · 19 assistants
- Staff
23 full-time teachers · 4 administrators
California private school affidavit, 2024-25
From the school
Programs, tuition & schedule
"For years, our families have entrusted us with their children, which motivates us to continue to strive in being the best Montessori school in Rancho Cucamonga."
Programs offered
- Nido Community
- Infant Community
- Primary Program
- Elementary Program
- Afterschool Programs
- Summer 2026 Program
- Atrium Faith Program
Source: school's Rancho page ↗
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.
Admissions
How to apply
Source: school's Rancho page ↗
Good to know
About St. Mary's Montessori School
St. Mary's Montessori School is a Montessori school (private) in Fontana, California serving grades PK-K. For years, our families have entrusted us with their children, which motivates us to continue to strive in being the best Montessori school in Rancho Cucamonga.
Where is St. Mary's Montessori School located? ⌃
7370 West Liberty Parkway, Fontana, CA 92336
What is the phone number for St. Mary's Montessori School? ⌃
St. Mary's Montessori School can be reached at (909) 200-4747.
Is St. Mary's Montessori School accredited? ⌃
St. Mary's Montessori School lists the following accreditations or affiliations on its website: AMI (affiliated), AMI-USA (affiliated).
What ages does St. Mary's Montessori School serve? ⌃
St. Mary's Montessori School serves grades PK-K.
What is the website for St. Mary's Montessori School? ⌃
The official website is stmarysmontessorischool.com.