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Delphian School

Alternative school · Grades 1–12

Sheridan, OR

20950 SW Rock Creek Rd, Sheridan, OR 97378

Overall grade: B+

ChooseAPrivateSchool.com grade, from official facts compared with similar schools.

  • B+Class size
  • B+College-going
  • A-Years serving families
  • B+Diversity

What stands out

  • Serving families in Sheridan since at least 2011

In Sheridan, Oregon, Delphian School is an independent private school for students from 1st grade through 12th grade. About 204 students attend, with roughly 11 students per teacher. It has been listed in official private school records since 2011–12. The school reports that about 80% of its graduates go on to four-year colleges. The school day runs about 8 hours, 182 days a year.

At a glance

Grades
Grades 1–12
Students
204
Teachers
19 (full-time equivalent)
Students per teacher
10.7
Boys and girls
Coed · 109 girls, 95 boys
Religious affiliation
None (nonsectarian)
Program
Alternative school
School day
About 8 hours
School year
182 days
Graduates going to 4-year colleges
About 80% (the school's estimate for the class before the survey)
Library
Yes

Reviews

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    How it compares

    • A smaller school: fewer students than 64% of independent schools in Oregon.
    • Compared with 11 independent schools in Oregon.

    Students by survey year

    231’11–12272’13–14252’15–16225’17–18234’19–20204’21–22204’23–24

    Total students reported in official records since 2011–12.

    Students by grade

    18
    210
    312
    410
    518
    623
    719
    820
    923
    1021
    1120
    1220

    Student body

    White81%
    Asian12%
    Hispanic or Latino5%
    Black2%

    Member of

    • A state or regional independent school association
    • The Association of Boarding Schools

    Questions to ask on a tour

    • What is tuition, and what does it include (books, fees, uniforms, trips)?
    • Do you offer financial aid, sibling discounts or payment plans?
    • Do you accept ESA, voucher or tax-credit scholarship funds?
    • How big are classes in my child's grade?
    • What support is there for students who need extra help or more challenge?
    • Is the school accredited, and by whom?
    • What do a typical day and a typical week look like?
    • How does the school communicate with families?

    More questions to ask →

    Questions about Delphian School

    What grades does Delphian School serve?

    Delphian School serves grades 1–12.

    How many students attend Delphian School?

    About 204 students, with 11 students per teacher, according to official records.

    How much is tuition at Delphian School?

    Call the school to ask about tuition, financial aid and payment plans.

    Official record · Updated October 2026 · Official search · Something wrong? Tell us

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