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Preschools/CA/Rancho Cucamonga/St. Mary's Montessori School
Preschool / Day Care Center

St. Mary's Montessori School

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MontessoriFaith-based
Ages
Ages 2–5
Teacher ratio
1:12 (CA min)

6880 N Victoria Windrows Loop, Rancho Cucamonga, CA 91739

Visit website ↗(909) 200-2727Directions ↗Licensed for 209
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Licensing & safety record

Citations on file
11
5 serious (Type A)
Complaint visits
6
Last visit
6/26/2025
Total visits
27

Citations are part of routine licensing oversight and range from minor (Type B) to serious (Type A). A citation alone doesn't mean a program is unsafe — read the full reports for context.

Source: California Dept. of Social Services, Community Care Licensing (updated 2025-09-29). View official inspection reports →

About this preschool

St. Mary's Montessori School operates a Rancho Cucamonga campus offering Montessori education. The school has been serving families in the community and holds licensing for Infant/Toddler and Primary programs.

Ages served
Infant/Toddler and Primary
Religious
Catholic (implied by name 'St. Mary's')

Programs

  • •Montessori
  • •Infant/Toddler
  • •Primary

Not stated on their website: Tuition, Hours, Teacher ratio, Meals, Outdoor play, Philosophy details. Ask the preschool directly.

Summarized by AI from the preschool's own website (Jun 23, 2026). Not written or verified by PreschoolWise — confirm details directly with the program.

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Helpful guides for parents

What age does preschool start?Typical ages, readiness signs, and state cutoffs.Is my child ready for preschool?The readiness signs to look for.Preschool vs. daycareHow they differ and which fits your child.Preschool vs. pre-KWhat comes when, from ages 3 to 5.

Listing facts from public CA child-care licensing records. Reviews are the opinions of individual contributors, moderated before publishing; they are not endorsements by PreschoolWise. Always visit and verify a program directly before enrolling.