Notre Dame de Sion High School (Top Ranked Private School for 2026-27)

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Quick Facts (2026-27)

Top Ranked MO School
Grades: 9-12
Enrollment: 311 students
Yearly Tuition: $15,200
Acceptance rate: 95%
Average class size: 16 students
Application Deadline: None / Rolling
Source: ✓Verified school update

School Rankings

Notre Dame de Sion High School ranks among the top 20% of private schools in Missouri for:

School Facts

Religious Affiliation

Catholic

Grades Offered

Grades 9-12

Students By Grade

View Data

Distribution of Students By Grade
Grade	Notre Dame de Sion High School
9	89
10	80
11	72
12	70

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ADD/ADHD Support

Yes

Learning Difference Programs

Yes

Learning Programs Supported

NDS supports students with diagnosed learning differences who are eligible for limited accommodations to experience success in the classroom.

Year Founded

1912

School Calendar

View School Calendar

School Motto

Inspired by our Catholic faith, our mission is to cultivate a welcoming community that empowers students for success in a religiously and culturally diverse world.

Student Body

Total Students

311 students

Student Body Type

Co-ed

Academic Profile

Total Classroom Teachers

50 teachers

Student-Teacher Ratio

6:1

National avg.: 11:1

% Faculty w/Advanced Degree

70%

Average Class Size

16 students

Average ACT score

(Out of 36)

Matriculation DataMatric. Data

View Matriculation Data

Classroom Dress Code

Formal

Designated Uniform

Number of AP Courses

28 courses

List of Courses Offered

Link to List of Courses

Advanced Courses

Anatomy and PhysiologyBiology

CalculusChemistry

Computer ScienceConvergent Journalism

English IVEnvironmental Science

FrenchGraphic Design

JournalismLatin

MacroeconomicsPhysics

PrecalculusPsychology

SpanishStatistics

Studio ArtU.S. History

World History

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School Membership(s)School Assoc.

National Catholic Educational Association (NCEA)
Independent Schools Association of the Central States (ISACS)

Tuition & Financial Aid

Admission Deadline

None / Rolling

Yearly Tuition Cost

$15,200

View national tuition avg.

Tuition Notes

Additional technology and programming fees may apply.

% on Financial Aid

53%

Average Financial Aid Grant

$6,800

Acceptance Rate

95%

National avg.: 85%

Admissions Director

Katie Glatz

Admissions Associate

Molly White

Application URL

Online Application

Sports

Total Sports Offered

15 sports

Sports

TennisTrack and Field

Volleyball

Colors

White, Purple

School Mascot

Sion Storm

Extracurriculars

Total ExtracurricularsTotal Extra-curric.

18 extracurriculars

ExtracurricularsExtra-curric.

Club or Organization:

Baking ClubCinema Club

National Honor SocietyNewsmagazine (Le Journal)

Peer Ministry Faith Development ClubScream Team Spirit Club

Student CouncilWomen's Awareness Club

Yearbook

Arts and Music Programs:

DrumLineFine Arts Club

Grand Choeur de SionPetit Choeur de Sion

Spring PlaySymphonie de Sion

Theater TechTriM

Winter Musical

School Notes

Notre Dame de Sion High School is an independent Catholic school, where students of all faiths are welcomed and embraced with our unique mission to build interfaith connections through mutual respect and dialogue.
Sion's unique academic programming is a blend of tradition and innovation, and allows us to offer a full range of classical college preparatory courses and leading-edge signature programs that harness the transformative power of experiential learning.
For over a century, Sion has been devoted to academic excellence, social justice, interfaith inclusion, and global connections, and committed to preparing students to become agents of positive change.

Four points of excellence serve as a foundation for the Notre Dame de Sion experience:

ACADEMIC EXCELLENCE

At Notre Dame de Sion we challenge our students to achieve academic excellence through a 21st-century learning curriculum and personalized instruction that emphasize the skill sets necessary for success. Our renowned staff and cutting-edge academics challenge students to reach their full potential, inside and outside of the classroom.

GLOBAL CONNECTIONS

Notre Dame de Sion Schools of Kansas City is just one of 22 Sion schools around the world. Our global reach allows students to engage with Sion students from different backgrounds, languages, and cultures all around the world. Sion proudly opens doors for students to be truly immersed in an international community and to learn through the lens of an authentic global perspective. At the middle and high school levels, our students have the opportunity to travel nationally and internationally through Sion exchange and study abroad programs.

SPIRITUAL GROWTH

Sion is committed to the values of the Catholic Church through spiritual growth, interfaith inclusion, social justice, and service. We have an innate sense of caring for the world and mankind, and are committed to creating a world of peace, justice, and love. We pursue a moral and ethical life, developing within our students the self-assurance and strength needed to withstand life challenges.

TRADITION

Sion is built upon time-honored traditions that link our past, present, and future. Memories are made every day at Sion with each experience tying together the hearts and souls of our students. From middle school international excursions, 8th grade retreats, and Sion's unique class ring, to the beautiful white gowns worn at high school graduation, the pride and joy in Sion's traditions are steeped in a spirit that promotes unity, camaraderie, and lifelong friendship.

Sample of notable school alumni/alumnae:
- Heidi Gardner - An American actress, comedian, and writer.
- Bryonha Maria Parham - Musician and acress currently on Broadway and in the arena of classical crossover.
- Megan Propeck - Exceptionally skilled student-athlete poised to shine in the world of professional golf

Source: Verified school update

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Frequently Asked Questions

How much does Notre Dame de Sion High School cost?

Notre Dame de Sion High School's tuition is approximately $15,200 for private students.

What is the acceptance rate of Notre Dame de Sion High School?

The acceptance rate of Notre Dame de Sion High School is 95%, which is higher than the national average of 87%.

Who are famous alumni from Notre Dame de Sion High School?

Notre Dame de Sion High School famous alumni include: Heidi Gardner, Bryonha Maria Parham and Megan Propeck.

What sports does Notre Dame de Sion High School offer?

Notre Dame de Sion High School offers 15 interscholastic sports: Basketball, Cheering, Cross Country, Curling, Dance, Diving, Field Hockey, Golf, Lacrosse, Soccer, Softball, Swimming, Tennis, Track and Field and Volleyball. Notre Dame de Sion High School is ranked as one of the top 20% of private schools in Missouri for most sports offered.

What is Notre Dame de Sion High School's ranking?

Notre Dame de Sion High School ranks among the top 20% of private schools in Missouri for: Largest student body, Most AP courses offered, Most sports offered and Most extracurriculars offered.

When is the application deadline for Notre Dame de Sion High School?

The application deadline for Notre Dame de Sion High School is rolling (applications are reviewed as they are received year-round).

School Reviews

5.00 out of 5 (3 reviews)

5 5/10/2024

Our daughter attended Notre Dame de Sion High School and it has been a wonderful experience for both her and our family. We were impressed by the academic rigor, the small classroom size and personal attention that she received, and the wide variety of accessible clubs, sports, and activities, and service opportunities that she could participate in. Most importantly, we were impressed by the Catholic foundation that was woven through curriculum and culture, and the impressive dialogue the teachers engaged in with their students. Our daughter has gained so much confidence, maturity, respect and love for learning and diversity. We feel she is ready for college as a well-rounded young adult, who will be able to problem solve and embrace what the world sends her way. Thanks, Sion!

- Posted by Parent - Katie

5 5/10/2024

Notre Dame de Sion provides students with a high quality, academic experience, which prepares them well for college! In addition, Sion's "Deep Dive" experiential programs are exciting, hands-on experiences where students are allowed to explore various interests. The faculty and staff at Sion get to know their students and truly care about their well being. This helps create a culture of mutual respect and inclusiveness for all types of kids. Our daughter loved her time at Sion and the friendships she made during those four years!!!

- Posted by Parent - Leann

5 5/10/2024

My daughter has thrived at Sion High School! She has been given many opportunities to have new experiences, try new classes, and become a leader. She has had multiple opportunities to travel and work within the community, including taking pictures on a sports field! This smaller school has all the opportunities of a larger school. The administration and teachers care about the students. They listen to feedback and make adjustments while continuing to maintain high standards. Sion has wonderful traditions, and as my senior is nearing graduation, we are figuring out how to stay involved with this gem of a school!

- Posted by Parent - A. Alexander

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Did You Know?

The average private school tuition in Kansas City, MO is $12,557 for elementary schools and $14,503 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Kansas City, MO is 88% (read more about average acceptance rates across the country).