California Boarding Schools

California has 14 boarding schools serving 4,319 students. They include 12 co-ed schools, 1 all-boys school and 1 all-girls school.
These include 11 college-preparatory schools, 2 junior boarding schools and 2 arts schools.
Average tuition in California is $78,770, based on 14 reporting schools, 17% above the national average of $67,131.
32% of students receive financial aid, based on 13 reporting schools, 11 points below the national average of 43%.

Quick Facts (26-27)

  • # Boarding Schools: 14
  • # Students Served: 4,319
  • Average Tuition: $78,770
  • % Students on Financial Aid: 32%
  • Average Acceptance Rate: 45%
  • Average Class Size: 12 students
  • Average SAT Score: 1,287
  • % Faculty w/Advanced Degree: 74%
  • % Students Boarding: 66%
  • % International Students: 27%
  • % Students of Color: 41%

Quick Facts (26-27)

  • # Boarding Schools: 14
  • # Students Served: 4,319
  • Average Tuition: $78,770
  • % Students on Financial Aid: 32%
  • Average Acceptance Rate: 45%
  • Average Class Size: 12 students
  • Average SAT Score: 1,287
  • % Faculty w/Advanced Degree: 74%
  • % Students Boarding: 66%
  • % International Students: 27%
  • % Students of Color: 41%

Top California Boarding Schools (2026-27)

Army and Navy Academy Photo - Our 16-acre campus is bordered by the Pacific Ocean in the northern San Diego coastal town of Carlsbad, CA. State-of-the-art athletic facilities support ANA's 17 different sports teams, plus surfing, beach volleyball, and ice hockey.
Gr: 7-12 | 285 students
Student-teacher ratio: 13:1
Avg. class size: 13 students
Acceptance rate: 73%
Tuition listed
All-boys
2605 Carlsbad Blvd.
Carlsbad, CA 92008
(888) 762-2338
(5)
Besant Hill School Photo - Besant Hill School is an intentionally small, college-preparatory boarding and day school for grades 9112, located on a beautiful 520-acre campus in Ojai, California, about 90 minutes north of Los Angeles. With a maximum enrollment of 100 students, our size is a deliberate choice. It allows us to know each student personally, provide individualized support, and create an environment where
Gr: 9-12, PG | 100 students
Student-teacher ratio: 4:1
Avg. class size: 8 students
Acceptance rate: 50%
Tuition listed
8585 Ojai Santa Paula Road
Ojai, CA 93023
(805) 646-4343
(1)
Cate School Photo - Day Walk
Gr: 9-12 | 300 students
Student-teacher ratio: 5:1
Avg. class size: 10 students
Acceptance rate: 17%
Tuition listed
1960 Cate Mesa Road, P.O. Box 5005
Carpinteria, CA 93013
(805) 684-4127
(20)
Dunn School Photo - In 2020 the new Leadership Center was completed. Overlooking the open space known as Munger Common, the center provides state of the art meeting rooms and learning facilities, is home to the student-run Earwig Cafe, and hosts our college counseling team. Students can be found gathering both indoors and outside the center for conversation and relaxation.
Gr: 9-12 | 6-12 (day) | 249 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 45%
Tuition listed
P.O. Box 98, 2555 W. Highway 154
Los Olivos, CA 93441
(805) 686-0650
EF Academy Pasadena Photo - Hands-on learning encourages our students to make their own discoveries. Calculate velocity in the real world by measuring the speed of a baseball!
Gr: 9-12 | 265 students
Student-teacher ratio: 7:1
Avg. class size: 18 students
Tuition listed
1505 E Howard St.
Pasadena, CA 91104
(626) 507-9223
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.
Gr: 9-12, PG | 280 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 65%
Tuition listed
52500 Temecula Road
Idyllwild, CA 92549
(951) 659-2171
(23)
Lake Tahoe Prep and ISI Academy Olympic Valley Photo - Co-ed boarding school offering daily adventure, opportunities for winter sports at Palisades Tahoe, other sports seasonally, and college-prep academics in a supportive academic setting.
Gr: 9-12 | 5-12 (day) | 35 students
Student-teacher ratio: 7:1
Avg. class size: 7 students
Acceptance rate: 80%
Tuition listed
255 Olympic Valley Road | P.O. Box 2180
Olympic Valley, CA 96146
(801) 336-0753
Ojai Valley School Photo - OVS offers an exceptional college-prep program. Recent college acceptances for our students include Stanford, Columbia, Northeastern, NYU, Boston College, UC Berkeley, UCLA, Pitzer College, Smith College, Vassar College, Cal Poly San Luis Obispo, and many more.
Gr: 3-12 | PK-12 (day) | 323 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Acceptance rate: 64%
Tuition listed
723 El Paseo Road
Ojai, CA 93023
(805) 646-1423
(2)
San Domenico School Photo
Gr: 9-12 | K-12 (day) | 680 students
Student-teacher ratio: 9:1
Avg. class size: 18 students
Tuition listed
1500 Butterfield Road
San Anselmo, CA 94960
(415) 258-1990
Santa Catalina School Photo - Come visit our beautiful campus in Monterey, California! Call the admission office at 831.655.9356 or email admission@santacatalina.org to schedule your visit.
Gr: 9-12 | 215 students
Student-teacher ratio: 8:1
Avg. class size: 12 students
Tuition listed
All-girls (Catholic)
1500 Mark Thomas Drive
Monterey, CA 93940
(831) 655-9356
(1)
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.
Gr: 9-12 | PK-12 (day) | 507 students
Student-teacher ratio: 10:1
Avg. class size: 12 students
Tuition listed
3152 Forest Lake Road
Pebble Beach, CA 93953
(831) 625-8309
(11)
The Thacher School Photo - In courses designed for intellectual and creative expansion, students and teachers meet in seminar circles, studios, and laboratories to create a learning environment that is vigorous and supportive, galvanizing and nurturing.
Gr: 9-12 | 255 students
Student-teacher ratio: 6:1
Avg. class size: 11 students
Acceptance rate: 15%
Tuition listed
5025 Thacher Road
Ojai, CA 93023
(805) 640-3210
(26)
The Webb Schools Photo - Imagine learning from expert teachers, exploring paleontology in the Alf Museum, and heading to LA for concerts, sports, or museums-all while living near beaches, mountains, and desert. For more than 100 years, Webb has prepared and placed students at the nation's top colleges.
Gr: 9-12 | 400 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Acceptance rate: 14%
Tuition listed
1175 West Baseline Road
Claremont, CA 91711
(909) 482-5214
(29)
Woodside Priory School (Priory) Photo - School spirit is huge at Priory. More than 30 club and activity choices are available to High School students. Clubs provide opportunities to discover passions, develop strengths, apply academic knowledge in a practical way, develop self-knowledge, and learn to make the choices necessary to manage a busy schedule independently.
Gr: 9-12 | 6-12 (day) | 425 students
Student-teacher ratio: 7:1
Avg. class size: 13 students
Acceptance rate: 30%
Tuition listed
Catholic
302 Portola Road
Portola Valley, CA 94028
(650) 851-8223
(2)

Historical Statistics Overview

This State (CA)
US (avg. per state)
# Schools
15 Schools
6.5 Schools

Showing 2016–2025. View full 21-year historical data

# Students
4,896 Students
2,532 Students

Showing 2016–2025. View full 21-year historical data

Academics and Faculty

This State (CA)
US
Average Student-Teacher Ratio
7:1
8:1

Showing 2016–2025. View full 21-year historical data

% Faculty with Advanced Degree
74%
69%

Showing 2016–2025. View full 21-year historical data

Academic Programs

This State (CA)*
US
* Fewer than 3 schools in California report Avg. IB Courses, so the West regional average is shown for that row.
Avg. AP/Advanced Courses
27
21

Showing 2016–2025. View full 21-year historical data

Avg. IB Courses
35
28

Showing 2016–2025. View full 14-year historical data

Avg. Class Size
12
13

Showing 2016–2025. View full 21-year historical data

Academic Performance

This State (CA)
US
Avg. SAT Score
1286
1268
Avg. ACT Score
29
27

Showing 2016–2025. View full 18-year historical data

Avg. Acceptance Rate
46%
58%

Showing 2016–2025. View full 21-year historical data

Tuition and Finances

This State (CA)
US
Avg. Tuition (Boarding)
$76,133
$64,659

Showing 2016–2025. View full 21-year historical data

Avg. Tuition (Day)
$48,368
$38,029

Showing 2016–2025. View full 21-year historical data

Avg. Tuition (International)
$73,992
$62,844

Showing 2016–2025. View full 16-year historical data

Avg. Financial Aid Rate
33%
42%

Showing 2016–2025. View full 21-year historical data

Avg. Financial Aid Grant
$39,208
$27,222

Showing 2016–2025. View full 21-year historical data

Avg. Endowment
$49 MM
$84 MM

Showing 2016–2025. View full 21-year historical data

Student Diversity

This State (CA)
US
% Students of Color
40%
30%

Showing 2016–2025. View full 21-year historical data

% International Students
24%
27%

Showing 2016–2025. View full 21-year historical data

% Boarding Students
63%
59%

Showing 2016–2025. View full 21-year historical data

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Frequently Asked Questions

How many boarding schools are located in California?
There are 14 college-preparatory boarding schools located in California.
What is the average tuition cost of boarding school in California?
The average California boarding school tuition cost is $78,770 per year.
What is the oldest boarding school in California?
San Domenico School, founded in 1850, is the oldest boarding school in California.
What boarding school in California has the lowest acceptance rates?
The Webb Schools has the lowest boarding school acceptance rate (14%) in California.
What boarding school in California has the highest average SAT scores?
The Webb Schools has the highest average SAT scores (1520) in California.
Which boarding schools in California are often viewed compared to one another?

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