Delphian School

5.00 5 1 (10 reviews)
20950 SW Rock Creek Road
Sheridan, OR 97378
Tel: 503-843-3521
Delphian is located on 725 acres adjacent to Oregon's Coastal Range. The campus is host to farmland, miles of oak and fir forests, trails for running or riding, and a large herd of elk.
Delphian is located on 725 acres adjacent to Oregon's Coastal Range. The campus is host to farmland, miles of oak and fir forests, trails for running or riding, and a large herd of elk.
Because our students study independently and learn from their materials instead of through a lecture-style classroom, each student in a class could be studying on a different course.
Not sure about learning on your own, without a teacher? Most people don't know there is an actual technology of study - ways to learn without memorization or memory tricks. We firmly believe that with the right study tools, a student can be his own best teacher. At Delphian, we'll show you how to become just that.
We believe education has to be personal. That's why Delphian students study on individual academic programs tailored to their interests. Making films, designing a computer game, helping to construct a bridge - their interests become part of their high school program.
Application of the subject being studied is central to learning. That's why Delphian students take what they're studying out into the world to apply it to their lives. By the time they graduate, Delphian students have spent over 1000 ours on practical activities - projects, internships, apprenticeships and personal interest activities.
No matter what science course they're studying, Delphian students spend the majority of their time in the lab or out in the world, putting scientific theories into practice, practicing the scientific method with their own theories, or putting proven theories into use.
The emphasis of Delphian's athletic program is on leadership, participation and sportsmanship. Delphian teams often win sportsmanship trophies from their league or tournament competition and are widely known for it. The school has many state-level competing teams every year.
When the academic day is over, our students participate in afternoon classes of their choosing - music, art, theater, athletics, game design, film, photography...on average 22 elective activities to choose from throughout the year.
We think of these as complimentary co-curriculars - not extra-curricular - because music, art, athletics and all the rest are all part of a well-rounded education.
Shouldn't your education be about you? Shouldn't it give you the freedom to explore areas you're interested in, to study subjects that are interesting and important to you? Visit and learn how to create your own education.
  • Delphian School is an independent, coeducational day and boarding school located in Sheridan, Oregon.
  • We offer a rigorous independent-study program with a strong emphasis on practical application for primary through high school students.
  • The Delphian community is a diverse, international student body representing over eighteen countries and many different religious and cultural backgrounds.
  • Emphasis in academics is on use of the data, rather than memorization to pass a test. Students are taught how to evaluate the importance of information by comparing an idea they`re studying to other concepts they`ve already learned. They explain it, demonstrate it, teach it to someone else, and apply it to their lives. In the end, it`s not just another fact to be memorized and abandoned; it`s been incorporated into the larger structure of their education. And in the process, our students have learned to think and reason.
  • 87% of Delphian graduates are admitted to their first choices colleges. Our students routinely score 25% higher than the national average on the SAT.

Alumni Reviews
  Review School

  • Review Description

  • Class of 2016
    5 Stars   4/29/2017
    Internship at Riding Academy in Los Angeles
    I loved how every teacher there was your friend. They honestly cared how you were doing, that you had full understanding of all the subjects you were studying and especially that you had a purpose. . .

  • Class of 2011
    5 Stars   4/29/2017
    The Delphian School is an amazing place. Between the gorgeous campus, the proficiency based educational model and the fantastic opportunities it provides for it's students, it's truly a one of a kind place. One aspect. . .

  • Class of 2010
    5 Stars   4/29/2017
    Fashion Institute of Design and Merchandising
    Delphian encourages their students to pursue what they are passionate about and to actually understand and be able to use their education. They encourage students not to study because they have to pass a test. . .

  • Class of 2010
    5 Stars   2/1/2011
    Musicians Institute
    Delphian is an incredible school! One of the things I noticed when I first came here was the responsibility level of the students. They are so capable of doing things such as running an. . .

  • Class of 2009
    5 Stars   2/1/2011
    Seton Hall University
    There are several aspects of the Delphian School which made it unique. However, one aspect that I think is a major advantage of the Delphian education is the location of the campus. Located on a. . .
  • Show more reviews (5 reviews)
Definition of Terms 
2016 School Data
Delphian School Boarding School Avg.
School Focus College Prep College Preparatory
Grades Offered 9-12 9-12
School Type Co-ed Co-ed
Religious Affiliation Non-denominational Non-denominational
Year Founded 1976 1910
Campus Size 720 acres 110 acres

Student Body

Enrollment 271 students 298 students
% Students of Color
% International Students
% Students Boarding
Average SAT Score 1376 * National Avg. »View
Offers Post-Grad Year No No

Academics and Faculty

Saturday Classes No No
Classroom Dress Code Casual Casual
Average Class Size 15 students 12
*National School Avg. » 20
Teacher : Student Ratio 1:10 1:7
# of AP / Advanced Courses Offered 9 16
ESL Courses Offered Yes Yes
Summer Program Offered Yes Yes


Endowment Size $2 million $16 million
Yearly Tuition
(Boarding Students)
(Boarding tuition rates range: $47,126 - $49,796)
Yearly Tuition
(Day Students)
(Day student tuition rates range from $15,570 - $27,175 and vary by school (Lower, Elementary, Middle, Upper).)
Yearly Tuition
(5 Day Boarding)
$44,000 $38,000
% Students on Financial Aid
Avg. Financial Aid Grant $13,500 $21,582
Merit Scholarships Offered Yes No


Application Deadline None / Rolling Jan. 15
Accepts Standardized Application Yes No
SSAT Required No Yes
Acceptance Rate
Director of AdmissionsThomas Keough

Course Listings

List of Courses Offered Link to List of Courses

AP / Advanced Courses

# of AP / Advanced Courses Offered 9 16
CoursesBiology, Calculus AB, Calculus BC, Chemistry, Computers, English Language, English Literature, French Language and Culture, Macro Economics, Micro Economics, Music Theory, Physics B, Spanish Language, Studio Art


# Interscholastic Sports Offered 9 14
SportsBaseball, Basketball, Cheering, Cross Country, Soccer, Softball, Tennis, Track and Field, Volleyball


Total Extracurricular Organizations 23 23
ExtracurricularsArchery Club, Audio Visual Club, Boy Scouts, Ceramics Club, Chess Club, Choir, Cooking Club, Drama Club, Drawing, Fine Arts Club, Guitar Club, International Club, Intramural Sports, Jazz Club, Music, Photography & Darkroom Editing, Space Club, Strings (Orchestra), Student Council, Weightlifting, Woodshop, Writing and Poetry, Yoga

College Matriculation

Year: 2010 - 2015 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
University of Notre Dame 1
Yale University 1
Link to Matriculation Data

School Notes

  • Delphian's History and Program Delphian was founded in 1976 by a group of educators concerned about the decline in the standards of American education. Delphian curriculum integrates innovative study methods recognized worldwide as a breakthrough in education. By learning how to study, without memorization or memory tricks, students develop the confidence and knowledge to tackle the most challenging subjects and learn anything on their own. They become their own best teacher. All Delphian students spend time putting their knowledge into practice. By the time they graduate, students have devoted over 1,000 hours to practical field activities, projects, and internships or apprenticeships. Rather than place or advance a child based on age or number of months spent in one grade level, Delphian takes the approach that each level of a student's education involves the acquisition and demonstration of particular abilities and knowledge. Spending exactly a year at one level may be fine for some children but not for others. Some students thrive at a faster pace, and some need more time. In fact, most students experience a little bit of both from month to month, depending on the subject matter, their age, or any number of variables. Delphian School utilizes the concept of forms instead of grades as a way of getting excellent learning results without forcing all students to move at exactly the same pace through the material. The School has a defined set of rigorous standards which must be met for a student to complete a form. Though forms can be roughly equivalent to grade levels and ages, it is possible for a younger student to move on to a higher form once they've met all the requirements for their current form. In this way, each student can get the full benefits from the curriculum and keep advancing as rapidly as he or she is maturing. At the beginning of each new form, students work one-on-one with a curriculum specialist to develop their own, individual program of academic study to agument the core curriculum. They work to fill in any gaps in their previous educations, bolster areas that may need extra attention, and follow their personal academic passions. Because of the independent study nature of our program, students can move as quickly through their courses and forms as they like, as long as they demonstrate that they understand and can apply the material.  Student Life Delphian's student body takes a highly active role in all school activities, giving each student the opportunity to learn personal lessons about responsibility, ethics, integrity, and leadership.  Once academic classes are finished, our students jump into a variety of afternoon activities  sports, music, art, drama, photography and dozens more elective courses. In their evening downtime, Delphian students might get together with friends in the recreation room, work on their jump shots in the gym, participate in a choir sectional, get in some extra study time, or just relax in the dorm. Student Council members do much of the weekend activity planning, which might include heading off campus to catch a play, movie, or sporting event in Portland; take part in a community service activity; go ice skating or skiing, camping or shopping. On-campus events might include a nighttime game of Capture the Flag and a bonfire, a special dance, or Friday Night Performance, where students take the stage to sing, act, dance, or perform songs from their favorite bands. Matriculation Delphian School graduates are accepted at top ranked colleges and universities across the United States. 95% get accepted into their top choice colleges. 
  • School accreditations: Northwest Accreditation Commission (NWAC), Northwest Association of Independent Schools (NWAIS), The Association of Boarding Schools (TABS), Western Boarding 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)
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