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

For the 2025-26 school year, there are 58 private schools belonging to National Association of Independent Schools (NAIS) serving 18,041 students in Washington. You can also find more schools membership associations in Washington.

The private schools belonging to National Association of Independent Schools (NAIS) in Washington include Annie Wright Schools, Holy Names Academy, and Charles Wright Academy.

The average tuition cost is $30,428, which is higher than the Washington private school average tuition cost of $15,698.

22% of private schools belonging to National Association of Independent Schools (NAIS) in Washington are religiously affiliated (most commonly Catholic and Christian).

Eastside Catholic School Photo - The Eastside Catholic School campus is situated on 50 acres on Sammamish plateau and surrounded by protected wetlands and forest.

Dartmoor School Photo - Dartmoor Bothell Campus

Dartmoor School Photo - Dartmoor School Seattle Campus

Charles Wright Academy Photo - Charles Wright Academy's Lower School, Middle School, and Upper School are home to more than 550 students from age 30 months to 12th grade. All three schools are situated on a beautiful, wooded 107-acre campus in University Place.

Dartmoor School Photo - One-to-One lnstruction

Forest Ridge School Of The Sacred Heart Photo

The Bear Creek School Photo - The Bear Creek School was founded in 1988.

Explorer West Middle School Photo - Explorer West Snow Shoe Testing

Open Window School Photo - We challenge, support, and trust students to do real work that matters and has an impact beyond the classroom.

Bright Water Waldorf School Photo - Beginning in the early childhood classes, circle time and group songs connect the children with rhythm, melody, and pitch. Students rise into the early grades with flute and lyre playing. Formal subject classes for music instruction start in the fourth grade with Strings. In middle school students venture into more complex arrangements and play together in ensembles.

Annie Wright Schools Photo - Founded in 1884, Annie Wright Schools are nestled in the beautiful North End neighborhood of Tacoma, Washington. Our historic campus includes an indoor pool, two gyms, science and technology labs, art and music studios, theater, outdoor gardens, play areas, athletic fields and open spaces.

Saint George's School Photo - Saint George's 120-acre campus is located along the Little Spokane River just north of Spokane, Washington.

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