Cardinal Montessori School (CMS) is the oldest AMS affiliated Montessori school in Prince William County with roots back to 1959. Our school is committed to assist each child to reach his/her full potential in the areas of child development.
Our philosophy begins with a belief that a child comes to us with unlimited potential and must be treated with respect and dignity as the adult they are to become.
The most important qualities a child develops in our classes are self-confidence, self-esteem, independence, self-discipline, thinking skills, and a love of learning.
Each child is taught that they are capable of making decisions that influence them and that they are responsible for the decisions made.
Quick Facts (2026)
- Top-Ranked VA School
- School Type: Montessori School
- Grades: Prekindergarten-6
- Enrollment: 104 students
- Yearly Tuition: $8,000
- Average class size: 28 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
Cardinal Montessori School ranks among the top 20% of private schools in Virginia for:
Category
Attribute
Advanced Degrees
School History
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-6
Year Founded
1959
Summer School Offered
Yes
School Calendar
Student Body
Total Students
104 students
Student Body Type
Co-ed
% Students of Color
43%
State avg.: 31%
Students by Grade
Academics and Faculty
Total Classroom Teachers
5 teachers
Student-Teacher Ratio
21:1
National avg.:
% Faculty w/Advanced Degree
80%
Average Class Size
28 students
Classroom Dress Code
Casual
School Uniform
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Tuition
Under Five $6,000
Tuition Over Five $8,500
Extended Day Care: Extra
Under Five $5,300. Over Five $3,200.
Summer Program Cost Notes
Must be former, current or enrolled in fall to attend
Admissions Director
Erick V. Gallegos
School Notes
- Sample of notable school alumni/alumnae:
- Peter Drucker - Management Guru
- Anne Frank - Author of the Diary of Anne Frank
- Larry Page and Sergey Brin - Co-founders of Google
- Jeffrey Bezos - Founder of Amazon.com
- Julia Child - Chef and cookbook author
- George Clooney - Actor
- Taylor Swift - Grammy Award-winning singer/songwriter
Source: Verified school update
Frequently Asked Questions
How much does Cardinal Montessori School cost?
Cardinal Montessori School's tuition is approximately $8,000 for private students.
Who are famous alumni from Cardinal Montessori School?
Cardinal Montessori School famous alumni include: Peter Drucker - Management Guru, Anne Frank - Author of the Diary of Anne Frank, Larry Page and Sergey Brin - Co-founders of Google, Jeffrey Bezos - Founder of Amazon.com, Julia Child - Chef and cookbook author, George Clooney - Actor and Taylor Swift - Grammy Award-winning singer/songwriter.
What is Cardinal Montessori School's ranking?
Cardinal Montessori School ranks among the top 20% of private schools in Virginia for: Highest percentage of faculty with advanced degrees and Oldest founding date.
When is the application deadline for Cardinal Montessori School?
The application deadline for Cardinal Montessori School is rolling (applications are reviewed as they are received year-round).
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