Boarding School Review - Established 2003
Asia Pacific International School Hawaii
Colorado Timberline Academy
St. Mary's School

Western Boarding Schools

For the 2026-27 school year, there are 30 college-prep and junior boarding schools serving 11,157 students located throughout Western.
You can also browse our full boarding school directory or specify additional search criteria.

Quick Facts (26-27)

  • # Boarding Schools: 30
  • # Students Served: 11,157
  • Average Tuition: $72,860
  • % Students on Financial Aid: 34%
  • Average Acceptance Rate: 58%
  • Average Class Size: 12 students
  • Average SAT Score: 1,279
  • % Faculty w/Advanced Degree: 69%
  • % Students Boarding: 56%
  • % International Students: 23%
  • % Students of Color: 34%

Quick Facts (26-27)

  • # Boarding Schools: 30
  • # Students Served: 11,157
  • Average Tuition: $72,860
  • % Students on Financial Aid: 34%
  • Average Acceptance Rate: 58%
  • Average Class Size: 12 students
  • Average SAT Score: 1,279
  • % Faculty w/Advanced Degree: 69%
  • % Students Boarding: 56%
  • % International Students: 23%
  • % Students of Color: 34%

Best Western Boarding Schools (2026-27)

Annie Wright Schools Photo - Annie Wright Schools, located in Tacoma, WA serves students pre-kindergarten through 12th grade. Our upper schools program provides boarding for 9-12th students and a co-educational model of classroom learning
Annie Wright Schools
Gr: 9-12 | PK-12 (day) | 900 students
Student-teacher ratio: 6.5:1
Avg. class size: 11 students
Tuition listed
827 N Tacoma Ave
Tacoma, WA 98403
(253) 284-8603
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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.
Army and Navy Academy
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)
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Asia Pacific International School Hawaii Photo - Asia Pacific International School (APIS) is a K-12, coed, college-preparatory school with a mission to nurture leaders of the New Pacific Century and bridge the gap between East and West.
Asia Pacific International School Hawaii
Gr: 5-12, PG | 3-12, PG (day) | 70 students
Student-teacher ratio: 10:1
Avg. class size: 7 students
Acceptance rate: 90%
Tuition listed
Christian
54-230 Kamehameha Hwy
Hauula, HI 96717
(808) 670-1909
(1)
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Besant Hill School Photo - Besant Hill School is located in the Ojai Valley, on 500 acres of private land with beautiful vistas in every direction. Facilities include four dormitories, outdoor sports facilities including a new aquatic center, indoor theater, atelier, and classrooms nestled along winding paths and oak trees. We also have an eight acre organic farm.
Besant Hill School
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)
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Cate School Photo - Day Walk
Cate School
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)
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Colorado Rocky Mountain School Photo - With 174 students, relationships are at the core of the Colorado Rocky Mountain School experience. This close-knit community resides on a 320-acre historic ranch, at the confluence of two rivers and base of Mount Sopris, providing not only an outdoor learning laboratory but a launch point for boundless outdoor adventure.
Colorado Rocky Mountain School
Gr: 9-12 | 165 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 60%
Tuition listed
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
(8)
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Colorado Timberline Academy Photo - Fall Trip in the Slot Canyons
Colorado Timberline Academy
Gr: 9-12, PG | 40 students
Student-teacher ratio: 4:1
Avg. class size: 6 students
Acceptance rate: 90%
Tuition listed
454 Academy Drive
Durango, CO 81301
(970) 247-5898
(5)
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Delphian School Photo - Delphian is located just one hour from Portland, OR. on a large 720 acre wooded campus. The residential community is in constant motion, alive with students from all around the world.
Delphian School
Gr: 5-12 | PK-12 (day) | 220 students
Student-teacher ratio: 10:1
Avg. class size: 13 students
Acceptance rate: 53%
Tuition listed
20950 SW Rock Creek Road
Sheridan, OR 97378
(503) 843-3521
(28)
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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.
Dunn School
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
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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!
EF Academy Pasadena
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
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Fountain Valley School of Colorado Photo - Fountain Valley School is a coed independent college preparatory school offering boarding and day programs for students grades 9-12. FVS was established in 1930 and is located on an 1,100-acre campus in Colorado Springs, Colo., approximately 70 miles (115 km) south of Denver. Colorado's mountain ski resorts are two hours to the west.
Fountain Valley School of Colorado
Gr: 9-12 | 8-12 (day) | 220 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 70%
Tuition listed
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
(5)
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Hawaiʻi Preparatory Academy Photo
Hawaiʻi Preparatory Academy
Gr: 9-12, PG | K-12, PG (day) | 400 students
Student-teacher ratio: 12:1
Avg. class size: 15 students
Acceptance rate: 42%
Tuition listed
65-1692 Kohala Mountain Road
Kamuela, HI 96743
(808) 881-4321
(8)
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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.
Idyllwild Arts Academy
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)
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Iolani School Photo
Iolani School
Gr: 9-12 | K-12 (day) | 2,300 students
Student-teacher ratio: 10:1
Avg. class size: 16 students
Tuition listed
Episcopal
563 Kamoku Street
Honolulu, HI 96826
(808) 943-2379
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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.
Lake Tahoe Prep and ISI Academy Olympic Valley
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
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Lustre Christian High School Photo - Lustre Christian High School is located in Lustre, MT.
Lustre Christian High School
Gr: 9-12 | 43 students
Student-teacher ratio: 7:1
Avg. class size: 10 students
Acceptance rate: 70%
Tuition listed
Non-denom. / Christian
4 Lustre High Circle
Lustre, MT 59225
(406) 392-5735
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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.
Ojai Valley School
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)
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Oregon Episcopal School Photo - Since 1869, our mission has been to inspire intellectual, physical, social, emotional, artistic, and spiritual growth so that students realize their power for good as citizens of local and world communities.
Oregon Episcopal School
Gr: 9-12, PG | PK-12, PG (day) | 875 students
Student-teacher ratio: 7:1
Avg. class size: 16 students
Tuition listed
Episcopal
6300 SW Nicol Road
Portland, OR 97223
(503) 768-3115
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Riverstone International School Photo - Welcome to Riverstone International School! We look forward to welcoming you to our school in beautiful Boise, Idaho!
Riverstone International School
Gr: 8-12 | PK-12 (day) | 320 students
Student-teacher ratio: 7:1
Avg. class size: 18 students
Acceptance rate: 80%
Tuition listed
5521 East Warm Springs Avenue
Boise, ID 83716
(208) 424-5000
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St. Mary's School Photo
St. Mary's School
Gr: 6-12 | 5-12 (day) | 504 students
Student-teacher ratio: 10:1
Avg. class size: 15 students
Tuition listed
Catholic
816 Black Oak Drive
Medford, OR 97504
(541) 773-7877
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San Domenico School Photo
San Domenico School
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
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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.
Santa Catalina School
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)
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Steamboat Mountain School Photo - Students travel to southeastern Utah to develop their skills on a more extended and extensive trip. Students backpack, kayak, canyoneer, rock climb, canoe, and mountain bike as they learn about the geology, leadership, and survival skills.
Steamboat Mountain School
Gr: 9-12, PG | K-12, PG (day) | 160 students
Student-teacher ratio: 8:1
Avg. class size: 12 students
Tuition listed
42605 RCR 36
Steamboat Springs, CO 80487
(970) 879-1350
(5)
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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.
Stevenson School
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)
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Sun Valley Community School Photo - Students from around the nation and world come to Sun Valley Community School in Sun Valley, Idaho, to fulfill their potential and pursue their passions.
Sun Valley Community School
Gr: 9-12 | PK-12 (day) | 405 students
Student-teacher ratio: 6:1
Avg. class size: 15 students
Acceptance rate: 45%
Tuition listed
1 Community School Drive
Sun Valley, ID 83353
(208) 622-3960
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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.
The Thacher School
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)
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Wasatch Academy Photo - Wasatch Academy sits on a beautiful 35-acre campus located in central Utah, 90 minutes south of Salt Lake City in the quaint town of Mt. Pleasant, Utah.
Wasatch Academy
Gr: 8-12, PG | 148 students
Student-teacher ratio: 6:1
Avg. class size: 10 students
Acceptance rate: 70%
Tuition listed
120 South 100 West
Mt. Pleasant, UT 84647
(435) 462-1400
(5)
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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.
The Webb Schools
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)
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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.
Woodside Priory School (Priory)
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)
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Wy'East Mountain Academy Photo
Wy'East Mountain Academy
Gr: 7-12, PG | 68 students
Student-teacher ratio: 15:1
Avg. class size: 15 students
Acceptance rate: 100%
Tuition listed
59550 East Highway 26
Sandy, OR 97055
(503) 622-8931
(5)
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Frequently Asked Questions

How many boarding schools are located in Western area of the USA?
There are 30 college-preparatory boarding schools located in Western area of the USA.
What is the average tuition cost of boarding school in Western area of the USA?
The average Western area of the USA boarding school tuition cost is $72,860 per year.
What is the oldest boarding school in Western area of the USA?
San Domenico School, founded in 1850, is the oldest boarding school in Western area of the USA.
What boarding school in Western area of the USA has the lowest acceptance rates?
The Webb Schools has the lowest boarding school acceptance rate (14%) in Western area of the USA.
What boarding school in Western area of the USA has the highest average SAT scores?
The Webb Schools has the highest average SAT scores (1520) in Western area of the USA.
Which boarding schools in Western area of the USA are often viewed compared to one another?
Popular comparisons of boarding schools in Western area of the USA include: Wy'East Mountain Academy vs. Delphian School, San Domenico School vs. Stevenson School, The Thacher School vs. Cate School

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