St. Mary`s Academy is a Catholic School for girls, founded, sponsored and administered by the Sisters of St. Joseph of Carondelet.
The administration, faculty and staff together with the students` parents are committed to challenging each young woman constantly and consistently to attain her full potential.
This effort is strongly characterized by respect for the individual, academic preparation for higher education and empowerment of the young Christian woman to take her place in an ever-changing world. As an expression of the educational mission of the Catholic Church and the extension of the family unit in today`s society, St. Mary`s Academy is enriched by a tradition of quality education for over a century.
From its founding and ongoing association with the Sisters of St. Joseph of Carondelet, St. Mary`s Academy has acquired distinctive characteristics including a commitment to provide educational opportunities to young women with potential, a commitment to provide a supportive and caring Christian community which both nurtures and challenges these young women, and a conviction that education finds its character and expression in service to others.
A St. Mary`s Academy education promotes the formation and integral development of young Christian women from various ethnic backgrounds and cultures.
This education provides opportunities for the development of contemporary leadership while preserving the spirit and traditions that have made St. Mary`s Academy unique.
Quick Stats (2025)
- Top Ranked CA School
- School Type: School with Special Program Emphasis
- Grades: 9-12
- Enrollment: 232 students
- Yearly Tuition: $10,898
- Acceptance rate: 90%
- Average class size: 21 students
- Application Deadline: Jan. 12 / rolling
- Source: Verified school update
Top Rankings
St. Mary's Academy ranks among the top 20% of private schools in California for:
Category
Attribute
Advanced Degrees
AP Courses
Extracurriculars
School History
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 9-12
ADD/ADHD Support
Yes
Year Founded
1889
Summer School Offered
Yes
School Calendar
First Day of School
Mon. Sep 1, 2025
School Motto
Be you. Belong. Be a Belle.
Student Body
Total Students
232 students
Student Body Type
% Students of Color
97%
State avg.: 51%
Students by Grade

Academics and Faculty
Total Classroom Teachers
17 teachers
Student : Teacher Ratio
14:1
National avg.: 13:1
% Faculty w/Advanced Degree
85%
Average Class Size
21 students
Number of AP Courses
20 courses
List of Courses Offered
Matriculation DataMatric. Data
Classroom Dress Code
Formal
School Colors
Blue, Gold
Tuition and Acceptance Rate
Admission Deadline
Jan. 12 / rolling
Yearly Tuition Cost
$10,898
Acceptance Rate
90%
National avg.: 81%
Admissions Director
Daphne Jones
Application URL
Sports
Total Sports Offered
6 sports
Sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
17 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
Activism Club, Anime Club, Architecture Club, Black Student Union, Book Club, California Scholarship Federation, Campus Ministry Team, Crochet Club, Fashion Club, Film Club, Interact Club, National Arts Honor Society, National Honor Society, Red Cross Club, Robotics Club, Student Ambassador Program, Student Leadership Council
Activism Club, Anime Club, Architecture Club, Black Student Union, Book Club, California Scholarship Federation, Campus Ministry Team, Crochet Club, Fashion Club, Film Club, Interact Club, National Arts Honor Society, National Honor Society, Red Cross Club, Robotics Club, Student Ambassador Program, Student Leadership Council
Source: Verified school update
Frequently Asked Questions
How much does St. Mary's Academy cost?
St. Mary's Academy's tuition is approximately $10,898 for private students.
What is the acceptance rate of St. Mary's Academy?
The acceptance rate of St. Mary's Academy is 90%, which is higher than the national average of 80%.
What sports does St. Mary's Academy offer?
St. Mary's Academy offers 6 interscholastic sports: Basketball, Cheering, Soccer, Softball, Track and Field and Volleyball.
What is St. Mary's Academy's ranking?
St. Mary's Academy ranks among the top 20% of private schools in California for: Highest percentage of students of color, Highest percentage of faculty with advanced degrees, Most AP courses offered, Most extracurriculars offered and Oldest founding date.
When is the application deadline for St. Mary's Academy?
The application deadline for St. Mary's Academy is Jan. 12 / rolling (applications are due on Jan. 12 but additional applications are reviewed year-round as space permits ).
School Reviews
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