Delphian School

20950 SW Rock Creek Road
Sheridan, OR 97378
Tel: 800-626-6610
Gr: (Boarding) 5-12 | 271 students
Delphian School`s mission is to empower young people with effective study skills, a solid academic foundation, a strong sense of personal integrity and a wide range of abilities.
More broadly, its mission is to send forth responsible, capable individuals who can help build a better world.

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 700 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 1:7 1:7
# of AP / Advanced Courses Offered 9 16
ESL Courses Offered Yes Yes
Summer Program Offered Yes Yes


Endowment Size $1 million $16 million
Yearly Tuition
(Boarding Students)
$45,940 $50,475
Yearly Tuition
(Day Students)
$27,525 $28,200
Tuition international students $49,450 $47,425
% Students on Financial Aid
Merit Scholarships Offered Yes No


Application Deadline None / Rolling Jan. 15
SSAT Required No Yes
Director of AdmissionsMarti Wiggins

Course Listings

List of Courses Offered Link to List of Courses

AP / Advanced Courses

# of AP / Advanced Courses Offered 9 16
CoursesCalculus AB, Calculus BC, English Language, English Literature, French Language and Culture, Macro Economics, Micro Economics, Physics B, Spanish Language


# Interscholastic Sports Offered 6 14
SportsBasketball, Cheering, Soccer, Tennis, Track and Field, Volleyball


Total Extracurricular Organizations 21 23
ExtracurricularsArchery Club, Audio Visual Club, Boy Scouts, Ceramics Club, Chess Club, Choir, Cooking Club, Drama Club, Drawing, Guitar Club, International Club, Intramural Sports, Jazz Club, Music, Photography & Darkroom Editing, Space Club, Student Council, Weightlifting, Woodshop, Writing and Poetry, Yoga

College Matriculation

Year: 10 Most Popular College Choices  (# Enrolled)
Link to Matriculation Data

School Notes

  • Delphian School, is an independent, K-12, co-educational day and boarding school located in Sheridan, Oregon. Delphian enrolls students from around the world.
  • 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 independently.
  • Delphian's student body takes a highly active role in all school activities, giving each student the opportunity to learn his own lessons about responsibility, ethics, integrity, and leadership.
  • Most Delphian School graduates are accepted at top ranked colleges and universities across the United States. 
  • Delphian School is an accredited member school of the Northwest Accreditation Commission (NWAC), the Northwest Association of Independent Schools (NWAIS) and The Association of Boarding Schools (TABS). Delphian is registered with the Oregon Department of Education and is a member of the Oregon Federation of Independent Schools.
  • Facilities
  • The school has 760 acres of wooded hills, meadows and fields overlooking the scenic Willamette Valley, heart of Oregon's wine country, and the coastal mountain range. 
  • Delphian School's sports facilities include a double-court newly renovated gymnasium with indoor running track and rock climbing traverse wall, soccer fields, baseball and softball diamonds, running track, yoga studio, four lighted tennis courts, and a weight and exercise room.
  • School accreditations: Northwest Accreditation Commission (NWAC), Northwest Association of Independent Schools (NWAIS), The Association of Boarding Schools (TABS)
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