Best Washington Boarding Schools (2026)

For the 2026 school year, there are 2 college-prep and junior boarding schools serving 1,000 students located throughout Washington.
Spring Street International School

Top Washington Boarding Schools (2026)

Tacoma, WA
Gr: 9-12 | Pre-K-12 (day) | 880 students
Student-teacher ratio: 6.5:1
Avg. class size: 17 students
Tuition listed
827 N Tacoma Ave
Tacoma, WA 98403
(253) 284-8603
Spring Street International School Photo
Gr: 8-12 | 6-12 (day) | 120 students
Student-teacher ratio: 8:1
Avg. class size: 15 students
Acceptance rate: 90%
Tuition listed
505 Spring Street
Friday Harbor, WA 98250
(360) 378-6393
(1)

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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Quick Facts (2026)

  • # Boarding Schools: 2
  • # Students Served: 1,000

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