Boarding School Review - Established 2003
St. Mary's School
Delphian School
Wy'East Mountain Academy

Best Oregon Boarding Schools (2026)

For the 2026 school year, there are 4 college-prep and junior boarding schools serving 1,659 students located throughout Oregon.
You can also browse our full boarding school directory or specify additional search criteria.
St. Mary's School
Delphian School
Wy'East Mountain Academy
Oregon Episcopal School

Top Oregon Boarding Schools (2026)

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
non-religious
20950 SW Rock Creek Road
Sheridan, OR 97378
(503) 843-3521
(19)
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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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St. Mary's School Photo
St. Mary's School
Gr: 6-12 | 5-12 (day) | 500 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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Wy'East Mountain Academy Photo
Wy'East Mountain Academy
Gr: 7-12, PG | 64 students
Student-teacher ratio: 1:12
Avg. class size: 12 students
Acceptance rate: 100%
Tuition listed
59550 East Highway 26
Sandy, OR 97055
(503) 622-8931
(3)
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Frequently Asked Questions

How many boarding schools are located in Oregon?
There are 4 college-preparatory boarding schools located in Oregon.
What is the average tuition cost of boarding school in Oregon?
The average Oregon boarding school tuition cost is $65,863 per year.
What is the oldest boarding school in Oregon?
St. Mary's School, founded in 1865, is the oldest boarding school in Oregon.
What boarding school in Oregon has the lowest acceptance rates?
Delphian School has the lowest boarding school acceptance rate (53%) in Oregon.
What boarding school in Oregon has the highest average SAT scores?
St. Mary's School has the highest average SAT scores (1320) in Oregon.

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Quick Facts (2026)

  • # Boarding Schools: 4
  • # Students Served: 1,659
  • Average Tuition: $65,863
  • Average Class Size: 14 students
  • % Students Boarding: 55%
  • % International Students: 17%
  • % Students of Color: 27%
  • % Students on Financial Aid: 34%
  • % Faculty w/Advanced Degree: 64%

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