Affiliation and Accreditation

Delphian School is a member of the Oregon Federation of Independent Schools, an Accredited Member of the Northwest Association of Independent Schools (NWAIS), The Association of Boarding Schools (TABS), the Western Boarding Schools Association (WBSA), and an accredited member school of the Northwest Accreditation Commission (NWAC). Delphi Schools, Inc. is licensed to use Applied Scholastics™ educational services.

Delphian School is an independent nonprofit organization and does not receive funds from government, religious or other groups. Funds for operations and capital improvements are raised through tuition, fees and charitable contributions.

Accrediting Agencies


The Northwest Association of Independent Schools is a voluntary membership organization that promotes high educational quality for its schools through the establishment and advancement of comprehensive accreditation standards.

It administers the accreditation process for independent elementary and secondary schools in Alaska, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming. Through this accreditation process, the Association assists schools with the process of school improvement


The Northwest Accreditation Commission (NWAC), a division of AdvancED, is the largest community of education professionals in the world, accrediting 32,000 schools and school systems—employing more than four million educators and enrolling more than 20 million students—across the United States and 70 other nations.

Affiliated Groups


Applied Scholastics International is a non-profit, public benefit organization formed in 1972 by educators from colleges, universities, and both public and private schools.

The mission of Applied Scholastics is to provide effective education services and materials that help people learn how to learn and thereby work effectively to achieve their goals and realize their full potential.

Delphian School is licensed to use Applied Scholastics™ educational services.

Applied Scholastics and the Applied Scholastics open book design are trademarks and service marks owned by Association for Better Living and Education International and are used with its permission.


The Association of Boarding Schools (TABS) is the public voice for college-preparatory boarding schools and the central resource for boarding school education. TABS serves roughly 300 boarding schools across the United States, Canada, and abroad. Serving as a bridge between schools and students, TABS actively supports the needs of boarding schools themselves, and provides information and insight to families about the benefits of a boarding school environment.


The Western Boarding Schools Association is a consortium of forty of the strongest college preparatory schools in the Western U.S. and Canada.


The Small Boarding Schools Association was founded in 1987 by a group who felt that small boarding schools needed their own gathering to address those issues unique to their type of school.

While the membership in the organization has grown since its founding, its central purpose remains essentially unchanged. SBSA continues to exist today to provide those who work in and with small boarding schools of various types an opportunity to share and to learn from one another.


Delphi Schools, Inc. (DSI) is a non-profit organization dedicated to revitalizing education through effective primary, elementary and secondary schools. DSI licenses curriculum to schools in the Delphi Schools Network. Through Heron Books™, all the Delphi schools are furnished with a standardized curriculum and a comprehensive curriculum training program that ensures consistency and effectiveness within the network.

The Delphi Schools network includes five Delphi Academies across the country. The Delphian School is the founding school of the Delphi Schools network.

Heron Books

Heron Books™ is a research and development team that publishes cutting edge K-12 educational materials. Heron Books materials are for schools, preschools, homeschools, teachers, tutors, parents, children and teens. Training centers and businesses use Heron Books materials as well.

Through Heron Books, all the Delphi schools are furnished with a standardized curriculum and a comprehensive curriculum training program that ensures consistency and effectiveness within the network.


Delphian School Niche Rankings

Niche rankings are based on rigorous analysis of data and reviews. We were also ranked in the top 10 for 2018 Best Schools for STEM in Oregon, Most Diverse Private High Schools in Oregon and Best College Prep Private High Schools in Oregon based on SAT/ACT scores, 4-year matriculation rate, the quality of colleges that students consider, and student and parent ratings of college readiness. Read more about Delphian's Niche rankings.


Many questions about our program are answered elsewhere on our site—such as, What are forms? How independent is independent study? What are the age ranges of your Lower, Elementary, Middle and Upper Schools?

For those questions not answered elsewhere, you can hopefully find your answer below. If not, please contact our Admissions Office. We welcome your questions about our school and program.

What is an independent school?

Independent schools are private learning institutions with missions unique to each. In order to be considered 'independent,' such schools must be not-for-profit institutions governed by independent boards of trustees and funded through tuition, charitable contributions, and endowment income.

Independent schools uphold high standards of educational quality and are publicly accountable to parents, communities, and the agencies that accredit them. Delphian School is accredited by the Northwest Association of Independent Schools,, through a rigorous self-study process comparing our mission and values against the NWAIS standards, which include cultivating excellence in school leadership and academic rigor, furthering diversity, equity and inclusion, encouraging free and open inquiry, and fostering collegial and collaborative relationships, among many others.

What is the true cost of a Delphian education?

Delphian tuition covers the costs related to most student experiences, including field trips and experiential activities, practical projects, community service, and often travel to apprenticeships and internships.

For Middle and Upper School students there are additional materials fees, and for Upper School students there is the cost of a laptop and a technology fee. Please see the Tuition & Fees page for details.

Can my family apply for a scholarship or financial aid?

Yes. Please visit our Affording a Delphian Education page for more information.

Do young children board at your school?

Delphian School accepts boarding students from the age of 10, but the majority of our boarders are of high school age, with a smaller percentage at the middle school level (around 20% between ages 12 and 13).

Our elementary and lower schools primarily service local families whose children attend our day (non-boarding) programs.

Because younger children need a greater level of care and attention than older students, all boarding students enrolling in the Elementary and Middle Schools are assigned personal teachers (PTs). The PT is a faculty or staff member who helps provide the extra care and attention needed by a child of this age group who is living away from home.

PTs assist the parents by overseeing the welfare of younger boarding children in a variety of ways, such as eating most meals with their students, visiting with them at bedtime and spending time together on weekends.

Read more about our Advisor Program.

Isn't boarding school mainly for children with behavioral or learning problems?

While some boarding schools cater to children with specific needs, the majority of boarding schools have the general mission of offering excellent educations that by statistic far exceed other private day and public schools in a number of important areas.

Boarding School Facts

The Art and Science Group conducted a nationwide survey of over 2,700 high school students and adults regarding their experiences in high school and their lives since. The survey found that, compared to day students, boarding students:

  • Devote more time to homework and extracurricular activities: 17 hours/week, versus 9 hours (private day) and 8 hours (public).
  • 90% of boarding students report having high quality teachers - versus 62% (private day) and 51% (public).
  • 78% of boarding students said they were well prepared for college - versus 36% (private day) and 23% (public).
  • 56% of boarding students go on to earn advanced degrees - versus 36% (private day) and 21% (public).

In fact, the survey found that 60% of students applied to boarding school primarily for the opportunity to get a better education.

The above survey also offered the following key findings:

  • Students at private boarding schools have a better experience in high school than do students of a similar profile in public and private day schools.
  • Students at private boarding schools are better prepared for and attend more prestigious colleges and universities than do students of a similar profile in public and private day schools.

The Association of Boarding Schools has done extensive research into the quality of boarding school education and its long term benefits to students. Visit for more information or for additional statistics and survey findings.

Sending a child of any age away to school is an important decision for any family. To be accepted at Delphian, both the child and the parents must want to be here for the right reasons. We do not accept children who are being 'sent away' for various reasons, only those who want to tackle their own education head-on.

Our Admissions team spends many hours with each applying family to ensure Delphian is the right fit for both the needs of parents and the child. Please reach out to them for more information. They welcome your questions and calls.

Does the Delphian School have any religious affiliation?

Delphian School is a fully independent, non-religious, K-12 day and boarding school welcoming students of all faiths.

Delphian does not have any religious affiliation. The school pays no fees or tithes to any church and does not teach the doctrines of any one faith, although students will study a course entitled Understanding the Classical Religions in their senior year. This course covers the basic tenets of Christianity, Judaism, Islam, Hinduism, Buddhism and Confucianism and includes reading from their respective religious texts.

How are children of differing faiths supported?

Delphian School admits students from around the world and has hosted a student body representing as many as twenty different nations. As a result, there are children in attendance who are members of many faiths, including Christianity, Hinduism, Buddhism, Islam, Judaism and Scientology, and representative of different denominations and sects.

In coordination with each child's parents, Delphian School helps arrange transportation to local churches, synagogues or temples on days of worship as required by a student's individual religious practice.