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For the 2025-26 school year, there are 13 private high schools belonging to Northwest Association of Accredited Schools serving 3,011 students in Oregon. You can also find more schools membership associations in Oregon.

The top ranked private high schools belonging to Northwest Association of Accredited Schools in Oregon include Tualatin Valley Academy, De La Salle North Catholic High School, and Blanchet Catholic School.

The average tuition cost is $12,263, which is lower than the Oregon private high school average tuition cost of $15,253.

85% of private high schools belonging to Northwest Association of Accredited Schools in Oregon are religiously affiliated (most commonly Christian and Catholic).