Delphian School

20950 SW Rock Creek Road
Sheridan, OR 97378
Tel: 503-843-3521
Gr: (Boarding) 5-12 | 271 students
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.
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.
Because application is central to learning, 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.
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.
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.
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.
A well-rounded education requires more than a focus on core subjects. That`s why Delphian students choose from a wide variety of elective activities every afternoon. We refer to these classes as 'co-curricular' as they include subjects we consider essential - arts, music, computers, athletics, among many others.
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.

Alumni Reviews
  Review School

  • Review Description
  • Review #1 - Class of 2010Musicians Institute Delphian is an incredible school! One of the things I noticed when I first came here was the responsibility. . .
  • Review #2 - Class of 2009Seton Hall University There are several aspects of the Delphian School which made it unique. However, one aspect that I think is a. . .
  • Review #3 - Class of 2007- The Delphian School is completely tailor-made to the student. It's the type of school that makes sure the student understands. . .
  • Review #4 - Class of 2005Otis College of Art and Design I feel that The Delphian School has many positive aspects that make it different from other schools. Students study independently. . .
  • Review #5 - Class of 1996The Corcoran School of Art I found The Delphian School a very powerful experience. I remember when I first started at 13 years old. I. . .
Definition of Terms 
2016 School Data
Delphian School Boarding School Avg.
School Focus College Prep College Preparatory
Grades Offered (Boarding) 5-12 9-12
Grades Offered (Day) K-12 9-12
School Type Co-ed Co-ed
Religious Affiliation Non-denominational Non-denominational
Year Founded 1976 1910
Campus Size 725 acres 110 acres

Student Body

Enrollment 271 students 295 students
% Students of Color
% International Students
% Students Boarding
Average SAT Score 1860 * National Avg. »View
SAT range (25th-75th percentile) 1640 - 1930 -
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 14 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 $37,055
% Students on Financial Aid
Avg. Financial Aid Grant $13,500 $22,000
Merit Scholarships Offered Yes No


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

Course Listings

List of Courses Offered Link to List of Courses

AP / Advanced Courses

# of AP / Advanced Courses Offered 14 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 7 14
SportsBasketball, Cheering, Cross Country, Soccer, 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 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.

    Delphian's curriculum covers the full spectrum of core academic subjects: literature, math, science, languages, history, and the arts. Students also take courses focusing on ethics and integrity, leadership, life skills, computer technology, and physical education. And they choose from an expansive selection of elective courses.

    Our 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 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.

    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
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