California Association of Independent Schools (CAIS) Member Schools

BoardingSchoolReview.com lists 22 boarding schools as California Association of Independent Schools (CAIS) members, serving 10,144 students. Learn more about the association at California Association of Independent Schools (CAIS).

Membership data comes from the schools themselves and from published association directories. See all school associations.

Marvelwood School Photo - Community Service Wednesday is an important part of the weekly schedule and the mission of the School.

San Domenico School Photo

Canterbury School Photo - At Canterbury School, a balanced educational experience integrates academic achievement, personal growth, and community engagement. As a welcoming interfaith community, Canterbury fosters a sense of belonging, providing passionate educators and transformative opportunities that guide you toward your fullest potential. This is what makes Canterbury School more than just a place to learn-it's a place to become your best self.

Santa Catalina School Photo - Volleyball in the Gym

Woodside Priory School (Priory) Photo - Woodside Priory is a Benedictine Catholic, independent college preparatory school. Founded by Hungarian monks in 1957, Priory has been an international school from its very beginning.

Idyllwild Arts Academy Photo - Idyllwild Arts Academy is home to 280 students from over 30 countries and 27 US states, all devoted to intensive study of the arts. Named #1 High School for Arts in the nation by Niche in 2025.

Trinity College School Photo

Kent School Photo

Ojai Valley School Photo - OVS students enjoy time together on our two campuses in the Ojai Valley in Southern California. Throughout the year, student life is punctuated with fun events to balance the academic schedule. These include camping trips, socials, themed dress days, community service projects, and countless weekend excursions.

St. George's School, Vancouver Photo - St. George's School mission: Building Fine Young Men. One Boy at a Time.

Army and Navy Academy Photo - Evenings and weekends are often spent at our beachfront rec hall, where cadets play beach volleyball, work out in the Spartan gym, watch movies, gather around the fire pit, or practice culinary skills in our outdoor kitchen.

The Taft School Photo - More than a century has passed since Mr. Taft founded our school. While the world and the school have changed dramatically, his fundamental values endure: work hard, without regard for public acclaim; develop all your talents: academic, artistic, and athletic; and most importantly, give of yourself to others.

St. Michaels University School Photo - Learning is hands on, with students often leaving campus to experience real-world examples of what they are studying. An example is this AP Environmental Science field trip to the Bamfield Marine Centre.

Stevenson School Photo - Situated between the Pacific and Silicon Valley, Stevenson is a school shaped by both its surroundings and its namesake. Like Robert Louis Stevenson - the adventurer and writer who once roamed this coast - the school embraces learning as an exploration. Here, tidepools become classrooms, cypress groves frame our campuses and students are encouraged to chart their own journeys with curiosity andcreativity.

Stanstead College Photo

Brentwood College School Photo - The arts promote creativity, self-expression, and teamwork.They help our students to visualize an idea and see a complex process through to reality, while enriching the imagination and challenging the mind. At Brentwood, the arts support ourmovement towards global mindedness as they create culture and provide enrichment.

Rumsey Hall School Photo

Besant Hill School Photo - A spectacular view of the Topa Topa mountains from the common room in our Phoenix dorm. Students gather here for study sessions, snacks and social activities.

Pickering College Photo - Independent Co-educational Day and Boarding School

Marvelwood School Photo - Community Service Wednesday is an important part of the weekly schedule and the mission of the School.

Canterbury School Photo - At Canterbury School, a balanced educational experience integrates academic achievement, personal growth, and community engagement. As a welcoming interfaith community, Canterbury fosters a sense of belonging, providing passionate educators and transformative opportunities that guide you toward your fullest potential. This is what makes Canterbury School more than just a place to learn-it's a place to become your best self.

Santa Catalina School Photo - Volleyball in the Gym

Woodside Priory School (Priory) Photo - Woodside Priory is a Benedictine Catholic, independent college preparatory school. Founded by Hungarian monks in 1957, Priory has been an international school from its very beginning.

Idyllwild Arts Academy Photo - Idyllwild Arts Academy is home to 280 students from over 30 countries and 27 US states, all devoted to intensive study of the arts. Named #1 High School for Arts in the nation by Niche in 2025.

Ojai Valley School Photo - OVS students enjoy time together on our two campuses in the Ojai Valley in Southern California. Throughout the year, student life is punctuated with fun events to balance the academic schedule. These include camping trips, socials, themed dress days, community service projects, and countless weekend excursions.

St. George's School, Vancouver Photo - St. George's School mission: Building Fine Young Men. One Boy at a Time.

Army and Navy Academy Photo - Evenings and weekends are often spent at our beachfront rec hall, where cadets play beach volleyball, work out in the Spartan gym, watch movies, gather around the fire pit, or practice culinary skills in our outdoor kitchen.

The Taft School Photo - More than a century has passed since Mr. Taft founded our school. While the world and the school have changed dramatically, his fundamental values endure: work hard, without regard for public acclaim; develop all your talents: academic, artistic, and athletic; and most importantly, give of yourself to others.

St. Michaels University School Photo - Learning is hands on, with students often leaving campus to experience real-world examples of what they are studying. An example is this AP Environmental Science field trip to the Bamfield Marine Centre.

Stevenson School Photo - Situated between the Pacific and Silicon Valley, Stevenson is a school shaped by both its surroundings and its namesake. Like Robert Louis Stevenson - the adventurer and writer who once roamed this coast - the school embraces learning as an exploration. Here, tidepools become classrooms, cypress groves frame our campuses and students are encouraged to chart their own journeys with curiosity andcreativity.

Brentwood College School Photo - The arts promote creativity, self-expression, and teamwork.They help our students to visualize an idea and see a complex process through to reality, while enriching the imagination and challenging the mind. At Brentwood, the arts support ourmovement towards global mindedness as they create culture and provide enrichment.

Besant Hill School Photo - A spectacular view of the Topa Topa mountains from the common room in our Phoenix dorm. Students gather here for study sessions, snacks and social activities.

California Association of Independent Schools (CAIS) Member Schools (2026-27)

School

Location

Quick Facts

Army and Navy Academy

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(4)

2605 Carlsbad Blvd.
Carlsbad, CA 92008
(888) 762-2338

Gr: 7-12 | 285 students Student-teacher ratio: 13:1 Avg. class size: 13 students Acceptance rate: 73% Tuition listed

Besant Hill School

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(1)

8585 Ojai Santa Paula Road
Ojai, CA 93023
(805) 646-4343

Gr: 9-12, PG | 100 students Student-teacher ratio: 4:1 Avg. class size: 8 students Acceptance rate: 50% Tuition listed

Bishop's College School

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80 chemin Moulton Hill
Sherbrooke, Quebec, Canada J1M 1Z8
(819) 566-0238

Gr: 7-12 | 270 students Student-teacher ratio: 8:1 Avg. class size: 15 students Tuition listed

Branksome Hall

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(19)

10 Elm Avenue
Toronto, Canada m4w 1n4
(416) 920-9741

Gr: 7-12 | PK-12 (day) | 910 students Student-teacher ratio: 8:1 Avg. class size: 18 students Acceptance rate: 33% Tuition listed

Brentwood College School

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(30)

2735 Mt. Baker Road
Mill Bay, BC V8H 1K8, Canada 1
(250) 743-5521

Gr: 8-12 | 560 students Student-teacher ratio: 8:1 Avg. class size: 16 students Acceptance rate: 30% Tuition listed

Canterbury School

(Catholic)

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(1)

101 Aspetuck Avenue
New Milford, CT 06776
(860) 210-3832

Gr: 9-12, PG | 332 students Student-teacher ratio: 6:1 Avg. class size: 12 students Tuition listed

The Ethel Walker School

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230 Bushy Hill Road
Simsbury, CT 06070
(860) 408-4200

Gr: 7-12, PG | 225 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 47% Tuition listed

Idyllwild Arts Academy

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(23)

52500 Temecula Road
Idyllwild, CA 92549
(951) 659-2171

Gr: 9-12, PG | 280 students Student-teacher ratio: 5:1 Avg. class size: 12 students Acceptance rate: 65% Tuition listed

Kent School

(Episcopal)

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(1)

1 Macedonia Road
Kent, CT 06757
(860) 927-6111

Gr: 9-12, PG | 520 students Student-teacher ratio: 5:1 Avg. class size: 11 students Tuition listed

Marvelwood School

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476 Skiff Mountain Road
Kent, CT 06757
(860) 927-0047

Gr: 9-12, PG | 115 students Student-teacher ratio: 4:1 Avg. class size: 7 students Tuition listed

Ojai Valley School

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(2)

723 El Paseo Road
Ojai, CA 93023
(805) 646-1423

Gr: 3-12 | PK-12 (day) | 323 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 64% Tuition listed

Pickering College

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(4)

16945 Bayview Ave
Newmarket, Ontario, Canada L3Y4X2
(905) 895-1700

Gr: 9-12 | 400 students Student-teacher ratio: 9:1 Avg. class size: 18 students Tuition listed

Rumsey Hall School

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201 Romford Rd.
Washington, CT 06794
(860) 868-0535

Gr: 6-9 | PK-9 (day) | 356 students Student-teacher ratio: 5:1 Avg. class size: 12 students Tuition listed

St. George's School, Vancouver

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(16)

4175 West 29th Avenue
Vancouver, BC, Canada V6S1V1
(604) 224-1304

Gr: 8-12 | K-12 (day) | 1,150 students Student-teacher ratio: 10:1 Avg. class size: 20 students Tuition listed

St. Michaels University School

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(2)

3400 Richmond Road
Victoria, Canada V8P 4P5
(250) 370-6170

Gr: 9-12 | PK-12 (day) | 1,000 students Student-teacher ratio: 6:1 Avg. class size: 17 students

San Domenico School

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1500 Butterfield Road
San Anselmo, CA 94960
(415) 258-1990

Gr: 9-12 | K-12 (day) | 680 students Student-teacher ratio: 9:1 Avg. class size: 18 students Tuition listed

Santa Catalina School

(Catholic)

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(1)

1500 Mark Thomas Drive
Monterey, CA 93940
(831) 655-9356

Gr: 9-12 | 215 students Student-teacher ratio: 8:1 Avg. class size: 12 students Tuition listed

Stanstead College

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(2)

450 Dufferein
Stanstead, Canada 05830
(819) 876-2223

Gr: 7-12, PG | 304 students Student-teacher ratio: 8:1 Avg. class size: 16 students Tuition listed

Stevenson School

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(11)

3152 Forest Lake Road
Pebble Beach, CA 93953
(831) 625-8309

Gr: 9-12 | PK-12 (day) | 507 students Student-teacher ratio: 10:1 Avg. class size: 12 students Tuition listed

The Taft School

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(3)

110 Woodbury Road
Watertown, CT 06795
(860) 945-7700

Gr: 9-12, PG | 609 students Student-teacher ratio: 5:1 Avg. class size: 11 students Acceptance rate: 19% Tuition listed

Trinity College School

(Anglican)

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(5)

55 Deblaquire St N.
Port Hope, Canada L1A4K7
(905) 885-3209

Gr: 9-12 | 5-12 (day) | 578 students Student-teacher ratio: 7:1 Avg. class size: 15 students Tuition listed

Woodside Priory School (Priory)

(Catholic)

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(2)

302 Portola Road
Portola Valley, CA 94028
(650) 851-8223

Gr: 9-12 | 6-12 (day) | 425 students Student-teacher ratio: 7:1 Avg. class size: 13 students Acceptance rate: 30% Tuition listed

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