For the 2025-26 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 80%.
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 (2025-26)
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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