St. Christopher's by-the-Sea Montessori School was established in 1968 with the opening of its preschool program.
Today, St. Christopher's offers a small and nurturing educational environment within the diverse and international community of Key Biscayne.
St. Christopher's continually seeks to incorporate other extracurricular opportunities for all students.
We at St. Christopher's feel blessed to have been entrusted with the education of generations of young Key Biscayners.
St. Christopher's by-the-Sea Montessori School is committed to providing quality Montessori education in a Christian setting.
Within this prepared environment we encourage children to discover and learn at their own pace, in order to realize their highest potential.
Through work and example, children come to understand responsibility, respect, integrity and high moral standards.
St. Christopher's by-the-Sea Montessori School prepares the whole person for the challenges of tomorrow.
Quick Facts (2026)
- Top-Ranked FL School
- School Type: Montessori School
- Grades: Prekindergarten-6
- Enrollment: 230 students
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Christophers ranks among the top 20% of private schools in Florida for:
Category
Attribute
School History
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-6
Year Founded
1959
School Calendar
Student Body
Total Students
230 students
Student Body Type
Co-ed
% Students of Color
2%
State avg.: 47%
Students by Grade
Academics and Faculty
Total Classroom Teachers
9 teachers
Student-Teacher Ratio
26:1
National avg.:
Average Class Size
15 students
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Application URL
School Notes
- School Motto: Always Believe
- St. Christopher's by-the-Sea Montessori School was established in 1968 with the opening of its preschool program. Today, St. Christopher's offers a small and nurturing educational environment within the diverse and international community of Key Biscayne. St. Christopher's continually seeks to incorporate other extracurricular opportunities for all students. We at St. Christopher's feel blessed to have been entrusted with the education of generations of young Key Biscayners. St. Christopher's by-the-Sea Montessori School is committed to providing quality Montessori education in a Christian setting. Within this prepared environment we encourage children to discover and learn at their own pace, in order to realize their highest potential. Through work and example, children come to understand responsibility, respect, integrity and high moral standards. St. Christopher's by-the-Sea Montessori School prepares the whole person for the challenges of tomorrow.
Source: Verified school update
Frequently Asked Questions
What schools are St. Christophers often compared to?
St. Christophers is often viewed alongside schools like St. Agnes Academy by visitors of our site.
What is St. Christophers's ranking?
St. Christophers ranks among the top 20% of private schools in Florida for: Oldest founding date.
When is the application deadline for St. Christophers?
The application deadline for St. Christophers is rolling (applications are reviewed as they are received year-round).
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