St. Mary's Academy

St. Mary's Academy Photo #1 - St. Mary's Academy High School excels at preparing young women for leadership in a global society. Our goal is to empower our students through the development of analytical skills, confidence, and generosity to make a difference in the world around them.
St. Mary's Academy Photo #2 - The St. Mary's Academy Pre-Kindergarten program is based in a specially designed co-ed PK classroom with a dedicated outdoor space. We offer authentic learning opportunities with highly acclaimed teachers who focus on the social-emotional development of students and teach using developmentally appropriate and research-based practices.
St. Mary's Academy Photo #3 - For over 150 years, St. Mary's Academy has been enlightening students to explore the world and learn without limits. St. Mary's Academy's unique, rigorous, college preparatory curriculum is designed for students who are motivated to learn and grow in a Catholic, independent community.
St. Mary's Academy Photo #4 - The Lower School is a happy place! Here, children are treasured, encouraged, and loved. St. Mary's Academy's Lower School is a co-educational program beginning with Pre-Kindergarten and continuing through grade five. The Lower School learning environment allows children to grow in a happy, positive, and engaging community.
St. Mary's Academy Photo #5 - For the past four years, 100% of AP Calculus students have achieved the maximum score of five on the AP Calculus test!
St. Mary's Academy Photo #6 - At St. Mary's Academy Middle School, we focus on supporting the dynamic developmental stage of our students. They learn social skills, begin to establish their individual identity, and prepare for High School. The SMA Middle School offers an environment where creativity, exploration, and joy are encouraged to develop skills for deeper learning and personal growth.
St. Mary's Academy Photo #7 - St. Mary's Academy's Mission Statement: St. Mary's Academy fosters excellence in each child through academic achievement, spiritual development, and service. The Loretto School Values of faith, community, justice, and respect provide the foundation to be powerful agents of change.
  • St. Mary's Academy is an independent, Catholic school, founded by the Sisters of Loretto in 1864..
  • Co-Ed Pre-Junior Kindergarten through 8th.  All Girls High School.

Top Placements

St. Mary's Academy places among the top 20% of private schools in Colorado for:

School Overview

School Membership(s)School Assoc.National Coalition of Girls
National Association of Independent Schools (NAIS)
Association of Colorado Independent Schools (ACIS)
Religious AffiliationRoman Catholic
Grades OfferedGrades Prekindergarten-12
Year Founded1864
Summer School OfferedYes
Summer Program DetailsLink to Summer Program Details

Student Body

Total Students674 students
Student Body TypeCo-ed
% Students of Color
State avg.: 23%
Students by Grade St. Mary's Academy Student By Grade

Academics and Faculty

Total Classroom Teachers85 teachers
Student : Teacher Ratio8:1
National avg.: 13:1
% Faculty w/Advanced Degree
Average Class Size16 students
Number of AP Courses16 courses
List of Courses OfferedLink to List of Courses
Advanced CoursesAP Art History, AP Biology, AP Calculus AB, AP Calculus BC, AP English Literature and Composition, AP Environmental Sciences, AP European History, AP French Language, AP Spanish Language, AP U.S. History
Matriculation DataMatric. DataLink to Matriculation Data
Classroom Dress CodeCasual
(For Lower and Middle School: No denim. Collared shirts. No prints.)

Finances and Admission

Admission DeadlineNone / Rolling
Yearly Tuition Cost$15,600
Tuition NotesWe offer a variety of payment plans, loan programs and a need-based tuition assistance program.
% on Financial Aid
Average Financial Aid Grant$7,000
Admissions DirectorSeely Greenberg
Admissions AssociateKristen Dieterich
Endowment Size$12 million


Total Sports Offered12 sports
SportsBasketball, Cross Country, Dance, Diving, Field Hockey, Golf, Lacrosse, Soccer, Softball, Swimming, Tennis, VolleyballBasketballCross Country,
Field HockeyGolf,

School Notes

  • 675 enrolled students
  • 28% diversity
  • Students come from 70 different zip codes
  • Over $2.0 million given in need-based assistance each year to 26% of the student body in all three divisions.
  • Summer camp offering for seven weeks in the summer
  • Before and After School care available
Show me:
Show me:
  • School Location Miles Grades Students
  • Denver
    Grades: 9-12 | 365 students
    7.6 miles
    458 Uinta Way
    Denver, CO 80230
    (303) 344-0082
    7.6 9-12
  • Denver
    Mullen High School
    (Roman Catholic)
    Grades: 9-12 | 850 students
    4.1 miles
    3601 S Lowell Blvd
    Denver, CO 80236
    (303) 761-1764
    4.1 9-12
  • Englewood
    Grades: 6-12 | 726 students
    1.1 miles
    4000 East Quincy Avenue
    Englewood, CO 80113
    (303) 770-7660
    1.1 6-12
  • Englewood
    Grades: NS-8 | 621 students
    5.3 miles
    7071 E Otero Avenue
    Englewood, CO 80112
    (303) 770-0441
    5.3 NS-8
  • Broomfield
    Holy Family High School
    (Roman Catholic)
    Grades: 9-12 | 642 students
    22.9 miles
    5195 W 144th Ave
    Broomfield, CO 80023
    (303) 410-1411
    22.9 9-12

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Did You Know?
The average private school tuition in Colorado is $8,743 for elementary schools and $15,450 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Colorado is 90% (read more about average acceptance rates across the country).