For the 2026 school year, there are 3 private high schools belonging to NWAIS (Northwest Association of Independent Schools) serving 1,329 students in Oregon. You can also find more schools membership associations in Oregon.
The top-ranked private high schools belonging to NWAIS (Northwest Association of Independent Schools) in Oregon include The Delphian School, Oregon Episcopal School, and Northwest Academy.
The average acceptance rate is 52%, which is lower than the Oregon private high school average acceptance rate of 81%.
33% of private high schools belonging to NWAIS (Northwest Association of Independent Schools) in Oregon are religiously affiliated (most commonly Episcopal).
Top-Ranked Private High Schools Belonging to NWAIS (Northwest Association of Independent Schools) in Oregon (2026)
School
Location
Quick Facts
20950 South West Rock Creek Road
Sheridan, OR 97378
(503) 843-3521
Sheridan, OR 97378
(503) 843-3521
Gr: K-12 | 229 students Avg. class size: 13 students Sports: 6 | Extracurrculars: 36 Tuition & acceptance rate listed
6300 SW Nicol Road
Portland, OR 97223
(503) 768-3115
Portland, OR 97223
(503) 768-3115
Gr: PK-12 | 866 students Avg. class size: 16 students Sports: 10 | Extracurrculars: 24 Tuition & acceptance rate listed
1130 SW Main Street
Portland, OR 97205
(503) 223-3367
Portland, OR 97205
(503) 223-3367
Gr: 6-12 | 234 students Avg. class size: 12 students Sports: 2 | Extracurrculars: 19 Tuition & acceptance rate listed
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