In 1999, the Archdiocese of Denver established St. Mary Catholic School to be a part of St.
Mary Catholic Parish with the inception of morning and afternoon kindergarten, housed in a classroom in the Parish Hall.
In July 2000, with the blessing of Archbishop Charles Chaput, Fr.
(Monsignor) Peter Quang Nguyen, broke ground on the new school.
In the fall of 2000, a first grade class was added in the classroom next door and the school already boasted 38 students, a staff of 2 full time teachers and a principal, Mr.
Bill Gallop. In June of 2001, Sister Anno La Mere and Sister Marilyn Skluzacek were hired as the principal and assistant principal/4th grade teacher, respectively.
These two dedicated women helped open the school in its new building in August 2001.
The school doors opened with over 200 students in grades K-6.
Construction continued on the third floor and in the fall of 2002 the school was completed for an enrollment of appriximately 225 students in grades K-7.
The following year, eighth grade was added, making our school complete as a K-8 facility.
Quick Stats (2025)
- Top Ranked CO School
- Grades: Prekindergarten-8
- Enrollment: 251 students
- Yearly Tuition: $5,700
- Acceptance rate: 99%
- Average class size: 24 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Mary's Catholic School ranks among the top 20% of private schools in Colorado for:
School Overview
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
Year Founded
1999
First Day of School
Fri. Aug 1, 2025
Student Body
Total Students
251 students
Student Body Type
Co-ed
% Students of Color
60%
State avg.: 25%
Students by Grade

Academics and Faculty
Total Classroom Teachers
16 teachers
Student : Teacher Ratio
16:1
National avg.: 13:1
% Faculty w/Advanced Degree
60%
Average Class Size
24 students
Classroom Dress Code
Formal
School uniforms required for K-8
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Tuition varies for sibling discounts and preschool vs K-8
% on Financial Aid
50%
Acceptance Rate
99%
National avg.: 81%
Application URL
Sports
Total Sports Offered
4 sports
Sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
1 extracurricular
ExtracurricularsExtra-curric.
Arts and Music Programs:
After School Choir
After School Choir
Source: Verified school update
Frequently Asked Questions
How much does St. Mary's Catholic School cost?
St. Mary's Catholic School's tuition is approximately $5,700 for private students.
What is the acceptance rate of St. Mary's Catholic School?
The acceptance rate of St. Mary's Catholic School is 99%, which is higher than the national average of 83%.
What sports does St. Mary's Catholic School offer?
St. Mary's Catholic School offers 4 interscholastic sports: Basketball, Soccer, Track and Field and Volleyball.
What is St. Mary's Catholic School's ranking?
St. Mary's Catholic School ranks among the top 20% of private schools in Colorado for: Highest percentage of students of color and Largest student body.
When is the application deadline for St. Mary's Catholic School?
The application deadline for St. Mary's Catholic School is rolling (applications are reviewed as they are received year-round).
School Reviews
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