Spring Street International School Photo - SSIS high school students regularly participate in local, regional and state tennis, soccer, and baseball competitions. Eligible SSIS students have joined fellow islanders on soccer, softball, baseball, basketball, track, golf, sailing and swim teams.

Best Washington Boarding Schools (2026)

For the 2026 school year, there are 2 college-prep and junior boarding schools serving 942 students located throughout Washington.

Top Washington Boarding Schools (2026)

School
Location
Quick Facts
Annie Wright Schools
827 N Tacoma Ave
Tacoma, WA 98403
(253) 284-8603
Gr: 9-12 | Pre-K-12 (day) | 822 students Student-teacher ratio: 7:1 Avg. class size: 17 students Tuition listed
505 Spring Street
Friday Harbor, WA 98250
(360) 378-6393
Gr: 8-12 | 6-12 (day) | 120 students Student-teacher ratio: 8:1 Avg. class size: 15 students Acceptance rate: 90% Tuition listed

Frequently Asked Questions

How many boarding schools are located in Washington?
There are 2 college-preparatory boarding schools located in Washington.
What is the oldest boarding school in Washington?
Annie Wright Schools, founded in 1884, is the oldest boarding school in Washington.

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