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For the 2026 school year, there are 6 private high schools belonging to National Association of Independent Schools (NAIS) serving 2,795 students in Oregon. You can also find more schools membership associations in Oregon.

The top-ranked private high schools belonging to National Association of Independent Schools (NAIS) in Oregon include The Delphian School, Oregon Episcopal School, and Catlin Gabel School.

The average acceptance rate is 46%, which is lower than the Oregon private high school average acceptance rate of 80%.

33% of private high schools belonging to National Association of Independent Schools (NAIS) in Oregon are religiously affiliated (most commonly Catholic and Episcopal).