Delphian School

20950 SW Rock Creek Road,
Sheridan, OR 97378
Tel: 800-626-6610
Gr: (Boarding) 3-12 | 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.

Watch School Video:

Flash Player is required to view this content

Get Adobe Flash player

Alumni Reviews
  Review school

Definition of Terms 
2014 School Data
Delphian School Boarding School Avg.
School Focus College Preparatory College Preparatory
Grades Offered (Boarding) 3-12 8-12
Grades Offered (Day) K-12 8-12
School Type Co-ed Co-ed
ADD/ADHD Support No No
Religious Affiliation Non-denominational Non-denominational
Year Founded 1976 1909
Campus Size 800 acres 124 acres

Student Body

Enrollment 271 students 298 students
% Students of Color 16% 19%
% International Students 32% 20%
% Students Boarding 75% 68%
Average SAT Score 1757 * 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


Yearly Tuition
(Boarding Students)
$43,960 $48,700
Yearly Tuition
(Day Students)
$26,080 $26,800
Tuition international students $49,450 $45,175
% Students on Financial Aid 35% 35%
Merit Scholarships Offered No No


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

Course Listings

List of Courses Offered Link to List of Courses

AP / Advanced Courses

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


# Interscholastic Sports Offered 6 14
SportsBaseball, Basketball, Soccer, Softball, Tennis, Volleyball


Total Extracurricular Organizations 21 25
ExtracurricularsArchery Club, Audio/Visual Class, Boy Scouts of America/Cub Scouts of America, Ceramics, Chess Club, Choir, Drama, Drawing and Painting, Guitar, International Club, Intramural Basketball, Intramural Soccer, Intramural Volleyball, Jazz Choir, Music, Photography & Darkroom Editing, 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 college preparatory, K-12, co-educational day and boarding school. Delphian enrolls students from around the world and offers an English-as-a-Second Language program.
  • The school has more than 800 acres of wooded hills, meadows and fields overlooking the scenic Willamette Valley, heart of Oregon's family-friendly wine country. Sheridan, located in the heartland of fertile western Oregon, is approximately 50 miles southwest of Portland and 35 miles from the Pacific Coast.
  • The sports facilities include a double-court gymnasium, soccer fields, baseball and softball diamonds, a racquetball court, running track, four lighted tennis courts, and a weight and exercise room.
  • Delphian was founded in 1976 by a group of educators and parents concerned about the decline in the standards of American education. Delphian curriculum integrates the innovative study methods developed more than forty five years ago by American educator and philosopher L. Ron Hubbard. These methods are recognized worldwide as a breakthrough in education, and, with them, students develop the confidence and knowledge to tackle the most challenging subjects independently.
  • While being part of a student body that takes a highly active role in all school activities, each student will learn his own lessons about responsibility, integrity, and leadership.
  • Most graduates are accepted at top ranked colleges and universities across the United States.
  • Delphian School is registered with the Oregon Department of Education, is a member of the Oregon Federation of Independent Schools, and 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). The school is authorized under Federal Law to enroll non-immigrant alien students. Delphian School is licensed to use Applied Scholastics educational services.

  • School accreditations: Northwest Accreditation Commission (NWAC), Northwest Association of Independent Schools (NWAIS), The Association of Boarding Schools (TABS)
  • 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)

Nearby Schools:

The nearest boarding school is Western Mennonite School (17.8 miles away)
  • School Location Miles Students Grades
  • SalemWestern Mennonite School
    9045 Wallace Rd NW
    503-363-2000 x121
    17.8 mi | 200 students | Gr. 6-12
  • PortlandOregon Episcopal School
    6300 SW Nicol Road
    41.7 mi | 860 students | Gr. Pre-K-12
  • TacomaAnnie Wright Schools
    827 N. Tacoma Avenue
    (253) 284-8600
    156.5 mi | 192 students | Gr. 9-12
  • MedfordSt. Mary's School
    816 Black Oak Drive
    195.3 mi | 468 students | Gr. 6-12
  • VictoriaSt. Michaels University School
    3400 Richmond Road
    (250) 370-6170
    231.1 mi | 958 students | Gr. K-12
Recent Articles
Why Choose a Boarding Summer Program
Why Choose a Boarding Summer Program
Published November 09, 2014
Most boarding schools offer summer programs running about two weeks. Some answers to your questions about what's involved.
You child will have many questions about boarding school. Here is one way to handle those inevitable questions and concerns.
What makes some schools really better than others? What makes them the best schools?
Featured Schools
Request Information
I am a:
Parent or guardian name:
First name:
Middle name:
Last name:
Student date of birth:
Country of citizenship:
Student is:
In grade:           For entry grade:
Target start date:
Name of current school:
School type:
Applying for financial aid?:

Please describe academic, athletic, and extracurricular interests of the student.


(enter "N/A" if not applicable)

Allow other schools to send me information. Share your information with all schools on our site and let them send you brochures.

Save this data and create your user profile. Create your own user account so you don't have to re-type your user data each time you request information.You'll also be able to track your information requests, get reminded of application dates, and more!