We teach real-life skills and abilities. We focus on balancing the theoretical and practical side of learning.
Our graduates are ready for change, ready for higher education and ready for the real world.
Quick Stats (2025)
- Grades: (ÌÇÐÄvlog¹ÙÍø Students) 5-12
- Grades: (Day Students) PK-12
- Enrollment: 220 students
- Yearly Tuition (ÌÇÐÄvlog¹ÙÍø Students): $62,750
- Yearly Tuition (Day Students): $27,652
- Acceptance rate: 53%
- Average class size: 13 students
- Application Deadline: Feb. 15 / rolling
- Source: Verified school update
Top Rankings
Delphian School ranks among the top 20 boarding schools (out of 278 schools) for:
Category
Attribute
Student Test Scores
School Overview
School Focus
College Preparatory
College Preparatory
Grades Offered (ÌÇÐÄvlog¹ÙÍø)
5-12
9-12
Grades Offered (Day)
PK-12
2-12
School Type
Co-ed
Co-ed
Year Founded
1976
1907
Campus Size
720 acres
125 acres
Colors
White, Green
First Day of School
Wed. Sep 10, 2025
Student Body
Enrollment
220 students
315 students
% Students of Color
34%
26%
% International Students
30%
21%
% Students ÌÇÐÄvlog¹ÙÍø
75%
67%
Average SAT Score
1285
(Out of 1600)
(Out of 1600)
* National Avg. »
Average ACT score
30
(Out of 36)
(Out of 36)
*National Avg. »
Offers Post-Grad Year
No
No
Academics and Faculty
Saturday Classes
No
No
Average Class Size
13 students
12
* National Avg. »
Student : Teacher Ratio
12:1
7:1
% Faculty with Advanced Degree
41%
72%
Summer Program Details
Tuition Cost
Endowment Size
$52.74 million
$30 million
Yearly Tuition
(ÌÇÐÄvlog¹ÙÍø Students)
(ÌÇÐÄvlog¹ÙÍø Students)
$62,750
(ÌÇÐÄvlog¹ÙÍø tuition rates range: $62,750 - $71,136 and vary by school (Elementary, Middle, Upper). Delphian offers financial aid which may reduce the cost of tuition. We also offer 5-day boarding.)
(ÌÇÐÄvlog¹ÙÍø tuition rates range: $62,750 - $71,136 and vary by school (Elementary, Middle, Upper). Delphian offers financial aid which may reduce the cost of tuition. We also offer 5-day boarding.)
$68,800
Yearly Tuition
(Day Students)
(Day Students)
$27,652
(Day student tuition rates range from $27,652 - $50,113 and vary by school (Lower, Elementary, Middle, Upper). Delphian offers flexible tuition which may reduce the cost of tuition to qualified families.)
(Day student tuition rates range from $27,652 - $50,113 and vary by school (Lower, Elementary, Middle, Upper). Delphian offers flexible tuition which may reduce the cost of tuition to qualified families.)
$37,000
Tuition international students
$78,596
$59,000
Yearly Tuition
(5 Day ÌÇÐÄvlog¹ÙÍø)
(5 Day ÌÇÐÄvlog¹ÙÍø)
$58,511
$49,624
Summer Program Cost
$5,310
(We have a 4 week and 6 week program and ranges between $5,310 - $11,544. Price will vary depending on Day or ÌÇÐÄvlog¹ÙÍø students. International students have slightly different pricing as well to account for things such as insurance.)
(We have a 4 week and 6 week program and ranges between $5,310 - $11,544. Price will vary depending on Day or ÌÇÐÄvlog¹ÙÍø students. International students have slightly different pricing as well to account for things such as insurance.)
% Students on Financial Aid
44%
40%
Avg. Financial Aid Grant
$13,500
(Merit scholarships also available)
(Merit scholarships also available)
$25,000
Admissions
Application Deadline
Feb. 15 / rolling
Jan. 15
Acceptance Rate
53%
64%
Director of Admissions
Bridgette Rappoport
Application URL
Sports
# Interscholastic Sports Offered
8
16
Extracurriculars
Total Extracurricular Organizations
32
23
Extracurriculars
Club or Organization:
Arts and Music Programs:
Recreational Athletic Programs:
Basketball teamBook club
Conversation PartnersCooking Club
Debate ClubDiversity Discussion Group
Dungeons and Dragons clubMakerspace
Soccer teamSpace Club
Student CouncilTrack and field team
Volleyball teamWay to Happiness club
WoodshopWriters club
Writing and PoetryYouth for Human Rights club
Arts and Music Programs:
Recreational Athletic Programs:
Basketball classConditioning Class
Volleyball classYoga
College Matriculation
10 Most Popular College Choices (# Enrolled)
Parsons, New School for Design
4
Berklee College of Music
3
University of Oregon
3
University of Washington
3
New York University
2
University of California, Davis
2
University of California, Los Angeles
2
Cornell University
1
Emerson College
1
University of Notre Dame
1
School Notes
- Conventional schooling places an emphasis on tests, rules and grades rather than purpose, interest and comprehension. Delphian School was founded with a basic understanding that students are naturally interested in learning and can comprehend even the most complex subjects when they have a goal for what they are studying. The Delphi Program empowers this natural instinct with a program tailored to each student`s individual interest.
- Our students, parents and alumni agree-you`ve never seen a school like Delphian. Our mastery-based curriculum teaches students the most valuable skill of all: how to teach yourself anything you want to learn.
- In addition to the classic subjects, and unique to the Delphi Program, students study communication and leadership, the philosophy of ethics, planning and organizing skills and many other vital subjects. These skills ensure graduates are ready for life as adults.
- Delphian School accreditations: Northwest Accreditation Commission (NWAC), Northwest Association of Independent Schools (NWAIS), The Association of ÌÇÐÄvlog¹ÙÍø Schools (TABS), Western ÌÇÐÄvlog¹ÙÍø Schools Association (WBSA), AdvancedEd
- Sample of notable school alumni/alumnae:
- Sky Dayton - Founder of EarthLink and founder and chairman of Boingo Wireless, and a technology investor/entrepreneur.
- Thad Corea - Drummer (Wild Colonials; Blue Man Group); Jaguar Recording Studio
- Arwen Dayton - Author
- Natasha Gray - Artist/sculptor
- Vivian Gray - Actress (Dread)
- Sylvan Lionni - Artist
- Melissa McPhail - Author
- David O'Donnell - Actor/producer/writer: Air Force One; NCIS; Days of Our Lives
- Eduardo Olmos - Mayor of Torreon, Coahuila, Mexico
- Doug Rappoport - Lead guitarist (Edgar Winter)
- School Motto: Start Here. Go Anywhere.
- School Mascot: Dragon
Source: Verified school update
Frequently Asked Questions
How much does Delphian School cost?
Delphian School's tuition is approximately $62,750 for boarding students and $27,652 for day students.
What is the acceptance rate of Delphian School?
The acceptance rate of Delphian School is 53%, which is lower than the boarding school average of 64%.
Who are famous alumni from Delphian School?
Delphian School famous alumni include: Sky Dayton, Thad Corea, Arwen Dayton, Natasha Gray, Vivian Gray, Sylvan Lionni, Melissa McPhail, David O'Donnell, Eduardo Olmos and Doug Rappoport.
What sports does Delphian School offer?
Delphian School offers 8 interscholastic sports: Basketball, Cross Country, Cross Country Running, Soccer, Tennis, Track, Track and Field and Volleyball.
Does Delphian School offer a summer program?
Yes, Delphian School offers a summer program. Visit their for more information.
What is Delphian School's ranking?
Delphian School ranks among the top 20 boarding schools for High ACT scores.
When is the application deadline for Delphian School?
The application deadline for Delphian School is Feb. 15 / rolling (applications are due on Feb. 15 but additional applications are reviewed year-round as space permits ).
Alumni Reviews Review School
Review
Description
The Delphian School offers the most unique curriculum involving technology on how to learn, and real life applications. Additionally, Delphian offers constant opportunities for contribution and productivity to its students and staff.. . .
This school is unique because of its view and approach to education. Public schools approach school with time as a constant and education as a variable. What I mean by this is that one student. . .
What made my school different from other boarding schools was that I was able to move through my program at my own pace. I didn't have to worry about catching up with my class because. . .
Show more reviews (23 reviews)
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The nearest boarding school to Delphian School is Oregon Episcopal School (42.2 miles away)
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