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Rancho Campus

St. Mary's Montessori

Welcome to the Rancho Cucamonga Campus

At St. Mary’s Montessori School in Rancho Cucamonga, we offer families a warm, established Montessori community where children are known, supported, and given the space to grow with confidence and independence.

Located in the Windrows Loop community, just minutes from Victoria Gardens, our Rancho Cucamonga campus serves children from 6 weeks through 12 years of age. Families are able to begin their Montessori journey with us in infancy and continue through the elementary years, creating a sense of continuity and belonging as their child grows.

Our classrooms are rooted in the principles of Dr. Maria Montessori and grounded in the teachings of the Catholic faith. Each environment is carefully prepared to be orderly, beautiful, and purposeful, allowing children to move with increasing independence, make meaningful choices, develop concentration, and take an active role in caring for themselves and their surroundings.

Our guides observe each child closely and respond to what they are ready for next. Rather than moving every child through the same experience at the same pace, we offer the right balance of freedom, structure, challenge, and support. Over time, children become more capable, more responsible, and more confident in their own abilities.

Families searching for an authentic Montessori school in Rancho Cucamonga, Montessori preschool near Victoria Gardens, Montessori infant care, or an elementary Montessori program in Rancho Cucamonga will find a connected, faith-centered community at St. Mary’s.

What makes our Rancho campus special is the opportunity for children to grow within one Montessori community across many stages of development. From the earliest years through elementary, children are given time to deepen their independence, strengthen their character, and discover the satisfaction that comes from meaningful work.

At St. Mary’s, we want every child to feel that they belong here, that their work has purpose, and that they are capable of far more than they may yet realize.