St. Joseph's Academy is a college preparatory high school sponsored by the Sisters of St. Joseph of Carondelet.
Our mission at the Academy is to provide quality Catholic education for young women in an environment that challenges them to grow in faith, knowledge, and respect for self and others.
Our community expects these young women to make a profound impact in the world.
We strive to provide an environment where each student can develop as a whole person and where she can be guided toward service to God and neighbor.
SJA acknowledges the uniqueness of each individual and strives to nurture the integrity and autonomy of its students.
Administration, faculty, and staff understand that by their actions they demonstrate responsible behavior and commitment to Catholic values. Interactions with adults and with other students foster growth in self-awareness, understanding of others, and decision-making.
Quick Stats (2025)
- Top Ranked MO School
- Grades: 9-12
- Enrollment: 529 students
- Yearly Tuition: $15,990
- Acceptance rate: 85%
- Average class size: 10 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Joseph's Academy ranks among the top 20% of private schools in Missouri for:
Category
Attribute
Student Body
Sports offered
School History
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 9-12
Year Founded
1840
Colors
White, Green
School Calendar
First Day of School
Fri. Aug 1, 2025
Awards
Blue Ribbon School - Selected in 1993
Student Body
Total Students
529 students
Student Body Type
% Students of Color
7%
State avg.: 20%
Students by Grade

Academics and Faculty
Total Classroom Teachers
48 teachers
Student : Teacher Ratio
11:1
National avg.: 13:1
% Faculty w/Advanced Degree
76%
Average Class Size
10 students
Number of AP Courses
14 courses
List of Courses Offered
Average ACT score
27
(Out of 36)
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
$15,990
% on Financial Aid
29%
Acceptance Rate
85%
National avg.: 81%
Admissions Director
Dianne Dunning-Gill '88
Application URL
Sports
Total Sports Offered
12 sports
Sports
School Notes
- School Mascot: Angels
- St. Joseph's Academy is a college preparatory high school sponsored by the Sisters of St. Joseph of Carondelet. Our mission at the Academy is to provide quality Catholic education for young women in an environment that challenges them to grow in faith, knowledge, and respect for self and others. Our community expects these young women to make a profound impact in the world.
Source: Verified school update
Frequently Asked Questions
How much does St. Joseph's Academy cost?
St. Joseph's Academy's tuition is approximately $15,990 for private students.
What schools are St. Joseph's Academy often compared to?
St. Joseph's Academy is often viewed alongside schools like Notre Dame High School, Incarnate Word Academy, Visitation Academy Of St. Louis by visitors of our site.
What is the acceptance rate of St. Joseph's Academy?
The acceptance rate of St. Joseph's Academy is 85%, which is equal to the national average of 85%.
What sports does St. Joseph's Academy offer?
St. Joseph's Academy offers 12 interscholastic sports: Basketball, Cross Country, Dance, Diving, Field Hockey, Lacrosse, Soccer, Softball, Swimming, Tennis, Track and Field and Volleyball. St. Joseph's Academy is ranked as one of the top 20% of private schools in Missouri for most sports offered.
What is St. Joseph's Academy's ranking?
St. Joseph's Academy ranks among the top 20% of private schools in Missouri for: Largest student body, Most sports offered and Oldest founding date.
When is the application deadline for St. Joseph's Academy?
The application deadline for St. Joseph's Academy is rolling (applications are reviewed as they are received year-round).
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