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Best Oregon Private Schools Belonging to National Association of Independent Schools (NAIS) (2025-26)

For the 2025-26 school year, there are 17 private schools belonging to National Association of Independent Schools (NAIS) serving 5,481 students in Oregon. You can also find more schools membership associations in Oregon.

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

The average tuition cost is $20,271, which is higher than the Oregon private school average tuition cost of $11,930.

29% of private schools belonging to National Association of Independent Schools (NAIS) in Oregon are religiously affiliated (most commonly Catholic and Episcopal).

Abiqua School Photo - Learning beyond the classroom is a priority at Abiqua School. Multiple field trips throughout the school year intersect with classroom themes. Students are able to gain a different perspective that instills lifelong skills.

The Delphian School Photo - At The Delphian School, teachers don`t lecture in front of a blackboard while students frantically take notes. At our school, students learn at their own pace and study independently with a personalized program that is specifically designed to satisfy their specific needs and interests.

The Portland Montessori School Photo - Front entrance

Cascades Academy Photo - This year marks Cascades Academy's 20th anniversary, and our school is thriving. With a stable foundation in place, we're able to reflect on the challenges and growth we've experienced over the past two decades, and look to the future while creating a vision for the next 20 years. Our faculty and staff took time earlier this year to update our

French International School of Oregon Photo - Third-grade students learning how to play rugby during the Rugby World Cup.

Oregon Episcopal School Photo - OES offers an inquiry-based education that prepares students for higher education and lifelong learning.

Ashbrook Independent School Photo - Ashbrook's mission is to challenge and nurture academically capable students. We invite you to join us for a tour.

Franciscan Montessori Earth School Photo - Peace Day at the Franciscan Montessori Earth School and St. Francis Academy featured 2000 pinwheels

Oak Hill School Photo - The Whole Wide World

St. Mary's Of Medford Photo - St. Mary's Weight Room

Catlin Gabel School Photo - Catlin Gabel is recognized as one of the finest schools in the nation. When students step onto our 67-acre campus, they find themselves in the center of our educational experience: fir trees, meadows, and apple orchard, as well as multimedia classrooms, a creative arts center, state-of-the-art science labs, divisional libraries, soccer fields, tennis courts, an outdoor track, and much more.

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