Private School Review - Established 2003
Bridges Middle School Top 9 · Lowest Acceptance Rate (OR)
The Delphian School Top 3 · Highest Avg. ACT Score (OR)
Horizon Christian School Top 10 · Most AP Courses (OR)

Best Oregon Private Schools Belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) (2026-27)

For the 2026-27 school year, there are 56 private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) serving 14,920 students in Oregon. You can also find more schools membership associations in Oregon.
The top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Oregon include Oregon Episcopal School, Portland Christian Elementary School, and The Delphian School.
The average tuition cost is $12,506, which is higher than the Oregon private school average tuition cost of $11,780.
74% of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Oregon are religiously affiliated (most commonly Christian and Catholic).

Quick Facts (2026-27)

  • # Private Schools: 56

Quick Facts (2026-27)

  • # Private Schools: 56

Top Ranked Private Schools Belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Oregon (2026-27)

Bridges Middle School Photo
Bridges Middle School
Gr: 5-8 | 64 students
Avg. class size: 12 students
Special Education School
2510 SW 1st Avenue
Portland, OR 97201
(503) 688-2922
View Profile
The Delphian School Photo
The Delphian School
Gr: K-12 | 229 students
Avg. class size: 13 students
Sports: 6 | Extracurriculars: 36
Alternative School
20950 South West Rock Creek Road
Sheridan, OR 97378
(503) 843-3521
(6)
View Profile
International School Of Portland Photo
International School Of Portland
Gr: PK-5 | 346 students
Avg. class size: 13 students
Sports: 3 | Extracurriculars: 4
Specialized Curriculum
2305 S Water Avenue
Portland, OR 97201
(503) 226-2496
(17)
View Profile
Oregon Episcopal School Photo
Oregon Episcopal School
Gr: PK-12 | 861 students
Avg. class size: 16 students
Sports: 10 | Extracurriculars: 59
Episcopal
6300 SW Nicol Road
Portland, OR 97223
(503) 768-3115
(5)
View Profile
International Leadership Academy Photo
International Leadership Academy
Gr: PK-5 | 105 students
Sports: 8 | Extracurriculars: 2
Alternative School
14788 Boones Ferry Road
Lake Oswego, OR 97035
(503) 662-8452
View Profile
Blanchet Catholic School Photo
Blanchet Catholic School
Gr: 6-12 | 450 students
Avg. class size: 20 students
Sports: 14 | Extracurriculars: 36
Catholic
4373 Market St Ne
Salem, OR 97301
(503) 391-2639
View Profile
Canyonville Academy Photo
Canyonville Academy
Gr: 9-12 | 42 students
Avg. class size: 10 students
Sports: 8 | Extracurriculars: 4
Christian
250 E 1st St
Canyonville, OR 97417
(541) 839-4401
View Profile
Central Christian School Photo
Central Christian School
Gr: PK-12 | 419 students
Avg. class size: 20 students
Sports: 4 | Extracurriculars: 6
Christian
2731 SW Airport Way
Redmond, OR 97756
(541) 548-7803
View Profile
De La Salle North Catholic High School Photo
De La Salle North Catholic High School
Gr: 9-12 | 239 students
Avg. class size: 21 students
Sports: 4 | Extracurriculars: 8
Catholic
4300 NE Killingsworth Street
Portland, OR 97218
(503) 285-9385
(1)
View Profile
East Linn Christian Academy Photo
East Linn Christian Academy
Gr: PK-12 | 377 students
Christian
36883 Victory Dr
Lebanon, OR 97355
(541) 259-2304
(2)
View Profile
Edison High School Photo
Edison High School
Gr: 9-12 | 140 students
Avg. class size: 9 students
Sports: 13
Special Education School
9020 SW Beaverton Hillsdale Hwy
Portland, OR 97225
(503) 297-2336
View Profile
Eugene Christian School Photo
Eugene Christian School
Gr: PK-8 | 352 students
Avg. class size: 21 students
Sports: 3 | Extracurriculars: 3
Christian
2895 Chad Drive
Eugene, OR 97408
(541) 554-1517
(18)
View Profile
Map of Faith Bible Christian School
Faith Bible Christian School
Gr: PK-12 | 335 students
Avg. class size: 24 students
Sports: 9 | Extracurriculars: 4
Christian
8975 NE Walker Rd #120
Beaverton, OR 97006
(503) 681-8254
View Profile
Gaarde Christian School Photo
Gaarde Christian School
Gr: PK-8 | 210 students
Avg. class size: 16 students
Extracurriculars: 2
Christian
11265 SW Gaarde Street
Portland, OR 97224
(503) 639-5336
View Profile
Hood View Adventist School Photo
Hood View Adventist School
Gr: PK-8 | 178 students
Avg. class size: 15 students
Sports: 5 | Extracurriculars: 2
Seventh Day Adventist
26505 Se Kelso Rd.
Boring, OR 97009
(503) 663-4568
View Profile
Horizon Christian School Photo
Horizon Christian School
Gr: PK-12 | 696 students
Avg. class size: 23 students
Sports: 12 | Extracurriculars: 12
Christian
23370 SW Boones Ferry Rd.
Tualatin, OR 97062
(503) 783-6642
(3)
View Profile
Life Christian School Photo
Life Christian School
Gr: PK-12 | 260 students
Avg. class size: 20 students
Sports: 5 | Extracurriculars: 1
Christian
5585 Sw 209th Ave
Beaverton, OR 97078
(503) 259-1329
(2)
View Profile
Map of Livingstone Adventist Academy
Livingstone Adventist Academy
Gr: PK-12 | 137 students
Avg. class size: 17 students
Sports: 3
Seventh Day Adventist
5771 Fruitland Road NE
Salem, OR 97317
(503) 363-9408
View Profile
Mannahouse Christian Academy Photo
Mannahouse Christian Academy
Gr: NS-12 | 363 students
Avg. class size: 24 students
Sports: 5 | Extracurriculars: 10
Christian
9200 NE Fremont
Portland, OR 97220
(503) 252-5207
(23)
View Profile
Map of Morning Star Christian School
Morning Star Christian School
Gr: NS-8 | 279 students
Avg. class size: 22 students
Christian
19741 Baker Rd
Bend, OR 97702
(541) 382-5091
(1)
View Profile
Show 21 more private schools in Oregon (out of 56 total schools)
Loading...

Frequently Asked Questions

What are the top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Oregon?
The top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Oregon include Oregon Episcopal School, Portland Christian Elementary School, and The Delphian School.
How many private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are located in Oregon?
56 private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are located in Oregon.
How much do private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) cost in Oregon?
The average tuition cost is $12,506, which is higher than the Oregon private school average tuition cost of $11,780.
How diverse are private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Oregon?
Oregon private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are approximately 23% minority students, which is lower than the Oregon private school average of 26%.
What percentage of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are religiously affiliated in Oregon?
74% of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Oregon are religiously affiliated (most commonly Christian and Catholic).
57
Private Schools
14,920
Students
$12,506
Avg. Tuition
23%
Students of Color
12:1
Student-Teacher Ratio

Recent Articles

How Much Homework Is Too Much?
How Much Homework Is Too Much?
Learn how to compare private school homework expectations, recognize excessive workloads, evaluate assignment quality, and ask better questions about academic balance before choosing a school for your child.
Learning Support Without a Formal Program
Learning Support Without a Formal Program
Learn what private schools mean by informal learning support, how services differ from formal programs, and which questions families should ask before choosing the right school today.
Beyond AP vs. IB: How to Judge Academic Rigor
Beyond AP vs. IB: How to Judge Academic Rigor
Learn how to judge academic rigor at private schools without AP or IB by examining curriculum depth, assessments, faculty expectations, advanced coursework, student work, and college preparation outcomes.

Quick Links

SCHOOL SEARCH TOOLS:
SCHOOL BY TYPE (OR):
OPEN-HOUSES & JOBS:
PUBLIC & BOARDING SCHOOLS:
PRIVATE SCHOOL DATA:

Most Popular Articles

Why Private School?
Why Private School?
 Understanding Support Services in Private Schools
Understanding Support Services in Private Schools
School Rankings by Category
School Rankings by Category

More Articles

Advanced Learning Frameworks
Timeless School Insights
Leadership in Private Education
Programs for Exceptional Learners
Premier School Models