St. Joseph's Academy (Top Ranked Private School for 2026-27)

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Quick Facts (26-27)

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

School Rankings

St. Joseph's Academy ranks among the top 20% of private schools in Missouri for:

School Facts

Religious Affiliation

Catholic

Grades Offered

Grades 9-12

Students By Grade

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Distribution of Students By Grade

Grade	St. Joseph's Academy
9	148
10	124
11	134
12	123

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Grade 9 has the most students with 148, more than Grade 10 at 124 and Grade 12 at 123.

Year Founded

1840

School Calendar

View School Calendar

Awards

Blue Ribbon School - Selected in 1993

Campus Size

37 acres

Student Body

Total Students

529 students

Student Body Type

All-girls

% Students of Color

State avg.: 21%

Academic Profile

Total Classroom Teachers

48 teachers

Student-Teacher Ratio

10:1

National avg.: 11:1

% Faculty w/Advanced Degree

76%

Average Class Size

10 students

Average ACT score

(Out of 36)

Number of AP Courses

14 courses

List of Courses Offered

Link to List of Courses

School Membership(s)School Assoc.

National Catholic Educational Association (NCEA)
International Coalition of Girls' Schools (formerly NCGS) (ICGS)
National Association of Independent Schools (NAIS)
Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia)

Tuition & Financial Aid

Admission Deadline

None / Rolling

Yearly Tuition Cost

$15,990

View national tuition avg.

% on Financial Aid

29%

Acceptance Rate

85%

National avg.: 85%

Admissions Director

Dianne Dunning-Gill '88

Application URL

Online Application

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Sports

Total Sports Offered

12 sports

Sports

BasketballCross Country

Track and FieldVolleyball

Colors

White, Green

School Mascot

Angels

School Notes

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.

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

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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 lower than the national average of 87%.

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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Did You Know?

The average private school tuition in Saint Louis, MO is $17,395 for elementary schools and $21,703 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Saint Louis, MO is 82% (read more about average acceptance rates across the country).