The Marin School Confidence, Creativity, Integrity, and Academic Excellence The Marin School is an independent, college-prep high school in San Rafael.
Small by design, TMS students thrive in a challenging, collaborative environment where dedicated faculty set high expectations and encourage each student to realize their full potential.
We offer a UC-approved, thought-provoking curriculum, with a creative approach to everything we do.
Our small, supportive environment inspires our students to take risks and explore new ideas. Unique STEM offerings include Virology, Zoology, and our FabLab Maker space. Digital, Visual and Performing Arts electives provide opportunities for artists at all levels to refine their skills. Our sports teams compete in a small-school sports league with an emphasis on health and wellness - all teams are co-ed and no tryouts are required.
A daily shuttle service makes stops along a central corridor throughout San Francisco and Marin County.

Quick Stats (2022)

  • Top Ranked CA School
  • Grades: 9-12
  • Students: 80 students
  • Yearly Tuition: $54,950
  • Acceptance rate: 60%
  • Average class size: 8 students
  • Application Deadline: Jan. 11 / rolling

Top Rankings

The Marin School ranks among the top 20% of private schools in California for:


School Overview

Religious Affiliation
Grades Offered
Grades 9-12
ADD/ADHD Support
Learning Difference Programs
Learning Programs Supported
Dyslexia, Language-based, Mild to Moderate Learning Differences
Year Founded

Student Body

Total Students
80 students
Student Body Type
% Students of Color
State avg.: 48%
Students by Grade
The Marin School Student By Grade

Academics and Faculty

Total Classroom Teachers
20 teachers
Student : Teacher Ratio
National avg.: 13:1
% Faculty w/Advanced Degree
Average Class Size
8 students
List of Courses Offered
Average SAT score
Average ACT score
Matriculation DataMatric. Data
Classroom Dress Code

Tuition and Acceptance Rate

Admission Deadline
Jan. 11 / rolling
Yearly Tuition Cost
Tuition Notes
Tuition assistance available based upon demonstrated need.
% on Financial Aid
Average Financial Aid Grant
Acceptance Rate
National avg.: 85%
Admissions Associate
Andrew Cassetta


Total Sports Offered
5 sports


Total ExtracurricularsTotal Extra-curric.
17 extracurriculars
Club or Organization:
Community Service Club, Dungeons and Dragons Club, Fab Lab, Film Club, Garden Club, LGBTQ+ Alliance, Model United Nations, Music Appreciation Club, Student Leadership Council, Yearbook Club

Arts and Music Programs:
Drama, Drawing and Painting, Jazz Band, Photography Class, Public Art, Recording Studio, Studio Arts

School Notes

  • College-preparatory high school (U.C. approved curriculum)
  • Excellent student/teacher ratio
  • A class size that promotes learning (average 9)
  • Students who are seeking a close relationship with their teachers.
  • Students who demonstrate academic and creative potential.
  • Students who will actively participate in the learning process and in the school.
  • Students who will make a personal investment in their academic success.
  • Students who value the opportunities offered in a small learning community.
  • We celebrate diverse thinking and individual personalities.
  • We practice collaboration instead of competition.
  • We offer participatory classes and encourage each individual's voice.
  • We motivate students through innovative lessons and real-world applications.
  • We emphasize conceptual thinking rather than rote learning.
  • We honor each student's unique learning style.
  • We identify and nurture each student's talents and gifts.
  • We offer a web-based daily communication tool for parents, students and staff.
  • Faculty meet weekly to ensure full staff knowledge of each student's progress.
  • Students at The Marin School matriculate to leading colleges and universities across the country. We believe in the individual, and everything we do is designed to inspire, guide and empower each student to achieve his or her full academic and social potential.
Profile last updated:

School Reviews

  5.00 out of 5  (3 reviews)
Our daughter is a senior at The Marin School (TMS) and we couldn`t be happier. We feel so lucky that we found TMS and decided that the commute from San Francisco would be worth it. It has been, and more. We were looking for a school that could provide individual attention and differentiated learning for our daughter while also challenging her academically. We have had first-hand experience with schools that say that they provide this, but in fact don`t. It can really only be done with dedicated teachers and a small student:teacher ratio. We knew TMS had a small student:teacher ratio when we applied, but found out how talented , dedicated and caring the teachers are at TMS once our daughter started in 9th grade. She`s now a senior and has grown tremendously and is well prepared for college. We are honestly blown away by the ability of TMS to provide excellent, supported, standard and honors courses for core subjects. We`re impressed by the school's ability to meet the needs of all students not just because of its size, but because it`s so rare. We were initially concerned about the social life at TMS because it`s small, but through clubs, lunch, where all grades are combined, and the culture at TMS, our daughter has always had many friends, with friends in different grades. We are highly satisfied.
- Posted by
The Marin School has been a terrific school for our daughter over the past two years. They have provided the right level of individualized instruction and focus for her. She has participated in student government and other leadership opportunities, which she has really enjoyed. The school has created a community in which has been easy for our daughter to make friends. All in all, we`ve been very happy with the school!
- Posted by
TMS is a fabulous school for our child. The small class size and great teachers & staff make all the difference. They really care about each individual student. Being so small, less than 100 students in grades 9-12, enables TMS to give each student everything they need, whether it be more challenge, tutoring or emotional support. We are extremely happy with this school.
- Posted by

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Quick Stats (2022)

  • Top Ranked CA School
  • Grades: 9-12
  • Students: 80 students
  • Yearly Tuition: $54,950
  • Acceptance rate: 60%
  • Average class size: 8 students
  • Application Deadline: Jan. 11 / rolling

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Did You Know?

The average private school tuition in Marin County, CA is $24,320 for elementary schools and $36,201 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Marin County, CA is 74% (read more about average acceptance rates across the country).

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