Northwest Association of Independent Schools (NWAIS) Member Schools

BoardingSchoolReview.com lists 5 boarding schools as Northwest Association of Independent Schools (NWAIS) members, serving 2,720 students. Learn more about the association at Northwest Association of Independent Schools (NWAIS).

Membership data comes from the schools themselves and from published association directories. See all school associations.

Oregon Episcopal School Photo - Our no-cut sports policy ensures that every student who wants to play, gets to play, whatever the sport, and feels the joy of being part of a team. Our athletics program offers countless opportunities for self-confidence and leadership. Sports include: soccer, lacrosse, tennis, basketball, skiing, cross country, track, golf, volleyball and fencing.

Delphian School Photo - All students are involved in relevant, hands-on, learning experiences that allow students to relate their studies to real life.

Riverstone International School Photo - Riverstone House, steps away from downtown Boise, is the home-away-from-home for our boarding community. With only 30 students maximum, our students and staff become family.

Annie Wright Schools Photo - Annie Wright Schools, located in Tacoma, WA serves students pre-kindergarten through 12th grade. Our upper schools program provides boarding for 9-12th students and a co-educational model of classroom learning

Northwest Association of Independent Schools (NWAIS) Member Schools (2026-27)

School

Location

Quick Facts

Annie Wright Schools

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827 N Tacoma Ave
Tacoma, WA 98403
(253) 284-8603

Gr: 9-12 | PK-12 (day) | 900 students Student-teacher ratio: 6:1 Avg. class size: 11 students Tuition listed

Delphian School

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(28)

20950 SW Rock Creek Road
Sheridan, OR 97378
(503) 843-3521

Gr: 5-12 | PK-12 (day) | 220 students Student-teacher ratio: 12:1 Avg. class size: 13 students Acceptance rate: 53% Tuition listed

Oregon Episcopal School

(Episcopal)

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6300 SW Nicol Road
Portland, OR 97223
(503) 768-3115

Gr: 9-12, PG | PK-12, PG (day) | 875 students Student-teacher ratio: 7:1 Avg. class size: 14 students Tuition listed

Riverstone International School

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5521 East Warm Springs Avenue
Boise, ID 83716
(208) 424-5000

Gr: 8-12 | PK-12 (day) | 320 students Student-teacher ratio: 7:1 Avg. class size: 18 students Acceptance rate: 80% Tuition listed

Sun Valley Community School

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1 Community School Drive
Sun Valley, ID 83353
(208) 622-3960

Gr: 9-12 | PK-12 (day) | 405 students Student-teacher ratio: 6:1 Avg. class size: 15 students Acceptance rate: 45% Tuition listed

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