St. Thomas School

At St. Thomas School, we believe our students will change the world.
We believe our mission to develop responsible citizens of a global society is more important than ever before.
We believe that learners and leaders must exemplify strength of character, academic excellence, and community engagement.
St. Thomas School is for those families that value leadership, character, and community as essential components of their child's education.

Quick Stats (2024)

  • Top Ranked WA School
  • Grades: Prekindergarten-8
  • Enrollment: 330 students
  • Yearly Tuition: $37,900
  • Acceptance rate: 28%
  • Average class size: 18 students
  • Application Deadline: Jan. 11 / rolling
  • Source: Verified school update

Top Rankings

St. Thomas School ranks among the top 20% of private schools in Washington for:

School Overview

Religious Affiliation
Grades Offered
Grades Prekindergarten-8
ADD/ADHD Support
Learning Difference Programs
Year Founded
Summer School Offered
Summer Program Details

Student Body

Total Students
330 students
Student Body Type
% Students of Color
State avg.: 32%
Students by Grade
St. Thomas School Student By Grade

Academics and Faculty

Total Classroom Teachers
54 teachers
Student : Teacher Ratio
National avg.: 13:1
% Faculty w/Advanced Degree
Average Class Size
18 students
Classroom Dress Code

Tuition and Acceptance Rate

Admission Deadline
Jan. 11 / rolling
Yearly Tuition Cost
Tuition Notes
Tuition varies by grade levels. Preschool: $19,500 Prekindergarten: $21, 800 K-4 $37,900 5-8: $41,500
Summer Program Cost Notes
Cost varies by program.
% on Financial Aid
Average Financial Aid Grant
Acceptance Rate
National avg.: 85%
Admissions Director
Shal Foster
Admissions Associate
Yasmin Chou



Total ExtracurricularsTotal Extra-curric.
9 extracurriculars
Club or Organization:
Chess, Cooking Classes, Falcon's Ledge Middle School Club, Robotics, Yearbook

Arts and Music Programs:
Chorus, Drama, Piano Lessons, Voice Lessons

School Notes

  • Founded in 1951, STS is one of the most established independent schools in Washington state and features a highly regarded curriculum that prepares students to excel at future endeavors while honoring the school`s long-standing core values. STS sets students up for success and its graduates are consistently accepted to outstanding secondary education programs.
  • STS tailors the preschool through 8th grade journey for students through its personalized learning model by identifying their strengths, areas for growth, personal passions, and aspirations. As a Microsoft Showcase School, technology is woven into every grade and every subject by leveraging innovative learning tools, including a 1:1 laptop program, collaboration tools such as Office 365 and interactive white boards, and the school`s LEED Gold Certified campus.
  • St. Thomas School`s focus on character permeates school life all day, every day. We nurture students` character and spiritual intelligence in accordance to our core virtues: gratitude, responsibility, respect, courage, integrity, tolerance, compassion, perseverance, and generosity. We commit to character education, guiding our students to have a deep appreciation and awareness for all those around them, so that they may learn to live, lead, and serve with integrity, generosity, and compassion. At STS, our educational journey addresses the holistic needs of children, academically, socially, physically, and emotionally.
  • Teachers, administration, staff, parents, and students are all in the process of acquiring new knowledge and skills every day. We work hard to nurture a learning environment in which ALL members of the school feel secure in taking risks, asking questions, and exploring new alternatives.
Source: Verified school update

Frequently Asked Questions

How much does St. Thomas School cost?
St. Thomas School's tuition is approximately $37,900 for private students.
What is the acceptance rate of St. Thomas School?
The acceptance rate of St. Thomas School is 28%, which is lower than the national average of 84%. St. Thomas School's acceptance rate is ranked among the top private schools in Washington with low acceptance rates.
Does St. Thomas School offer a summer program?
Yes, St. Thomas School offers a summer program. Visit their summer school page for more information.
What sports does St. Thomas School offer?
St. Thomas School offers 6 interscholastic sports: Basketball, Cross Country, Soccer, Track and Field, Ultimate Frisbee and Volleyball.
What is St. Thomas School's ranking?
St. Thomas School ranks among the top 20% of private schools in Washington for: Lowest average acceptance rates, Highest percentage of students of color, Largest student body and Oldest founding date.
When is the application deadline for St. Thomas School?
The application deadline for St. Thomas School is Jan. 11 / rolling (applications are due on Jan. 11 but additional applications are reviewed year-round as space permits ).

School Reviews

  5.00 out of 5  (5 reviews)
Amazing school and community! My family was about to move back to Los Angeles and have our kids start Kindergarten and Preschool at our alma mater Chandler School but after spending some time in the Pacific Northwest we were leaning more towards staying up north. We had to make some serious choices regarding work, school, family, and friends. While researching schools in the area, my wife gave me the assignment of either finding a school that was at least similar to Chandler and if I could not find one, then we were going to move back to LA. So after weeks of touring schools all over Seattle and Bellevue, I finally walked onto St. Thomas School's campus and knew almost immediately that this was the school for us. From the school logo (acorn) to the uniforms (forest green and khaki), it was already visually looking similar to Chandler, which has the same uniform colors and a shamrock logo. I'll spare you all the details of what the school is all about (check their website - it's all true!), but by the time I finished the tour I knew walking back to my car that this was it. St. Thomas School's focus on Character, Curriculum, and Community is spot on in parallel with Chandler's core values. Today, 3 years after being accepted to the school, I can confidently and without hesitation say that our already high expectations have not only been met but in many instances have been exceeded! Tour the school as soon as possible. You will witness yourself the greatness of what is St. Thomas School. Expensive as hell, but worth every penny... I promise. There are also programs to help those who may not have the capacity to fund this type of education, so don't let the price tag scare you. Amazing new changes coming this Fall that are literally being built as I write this review including a brand new Athletics & Performing Arts Center along with a brand new Center for Leadership & Innovation. So much good... only getting better.
- Posted by
We have two kids at St. Thomas School and so far our experience at this school has been extraordinary. Our older one(now in 2nd grade) joined the school in Kindergarten where most of the kids in the class have known each other for a few years already. She didn't feel left out instead the teacher and the students have all made sure to help her transition into this new environment. The school curriculum is designed to help the students develop their own characters in this warm community. We feel that our kids are not only thriving academically, but their social emotions, their relationships with other students and teachers and their daily needs are also being looked after day in and day out. We are so thrilled that we joined this big family and we recommend this school to anyone who is looking for a well-rounded independent school for their kids.
- Posted by
Absolutely incredibly school. Three years ago we conducted a tremendous amount of research on private schools within a 50-mile radius of Seattle. My husband went on countless tours and after attending an Open House at St. Thomas School he knew in his heart that he had found the right place for our children. Two academic years later there are a great number of reasons why we continue to feel St. Thomas School is the best place for our sons. Firstly, I believe that the STS guiding principals continue to have a great impact on our sons. The school's dedication to the development of the "whole child" has help shape their understanding of ethics and morality. I have found that there is a philosophical and moral code that runs deep through the students, faculty, and administration. I also firmly believe the STS community demonstrates that above all else it is important to be a good person. Secondly, the faculty and staff at St. Thomas School embrace the differences in students and are dedicated to understanding how each child learns. Our younger son currently attends Kindergarten in the Early Learning Center and we appreciate that the teachers support learning through exploration. Through our two years in the ELC we have seen found-object galleries, alphabet and reading/phonics artwork, and cooking projects; since our son has a tendency to retain knowledge through hands-on experiences, we feel the schools current ELC curriculum supports our son's learning-style through many tactile-based opportunities. Lastly, I deeply appreciate the value St. Thomas School places in leadership, stewardship, and community and demonstrates true dedication by holding Chapel every morning. Chapel offers our sons the unique opportunities to learn the value of teamwork, open discussions, group consensus, healthy opposition, and most importantly, leadership in service of others. I wholeheartedly believe that the experience of Chapel has made a lasting and eternally positive impression on our children. We believe this modality of fellowship is a wonderful way for young children to experience spirituality-based gatherings, public speaking, and companionship.
- Posted by
We have been at this school for a few years now and absolutely love the environment and focus. We have seen our child thrive and build confidence here. The amazing teachers are truly invested in learning and knowing your whole child. Additionally, the school provides many leadership opportunities for all children. Also, there is a strong emphasis on building public speaking skills at an early age.
- Posted by
Our three children (7th, 5th and 2nd Graders) are all currently at St. Thomas School and are thriving. Each and every day they are excited to go to school, to learn and to grow academically, socially and emotionally. Their love of learning is infectious. The quality of the faculty at STS is second to none, and each member of staff's dedication to the children, their learning and their environment is unparalleled. The dining program is a particular highlight - freshly prepared and cooked food each day, catering for all food intolerances, allergies and requirements - with a focus on 'adventure bites' when trying something new for the first time, and quality 'brain' food for all the children. The new building with bring state of the art sports, music and theater facilities to the school, which will complement the academic rigor of the curriculum. Of particular importance to us with a rising 7th Grader is how the children are prepared for the high school application and admissions process. STS has a dedicated program for students with interview prep, SSAT test prep and counselling for students and parents.We love STS and recommend more highly.
- Posted by

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Quick Stats (2024)

  • Top Ranked WA School
  • Grades: Prekindergarten-8
  • Enrollment: 330 students
  • Yearly Tuition: $37,900
  • Acceptance rate: 28%
  • Average class size: 18 students
  • Application Deadline: Jan. 11 / rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in King County, WA is $19,765 for elementary schools and $22,426 for high schools (read more about average private school tuition across the country).
The average acceptance rate in King County, WA is 77% (read more about average acceptance rates across the country).

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