For the 2025-26 school year, there are 2 private high schools belonging to American Montessori Society (AMS) serving 634 students in Washington. You can also find more schools membership associations in Washington.
The top ranked private high school belonging to American Montessori Society (AMS) in Washington is Woodinville Montessori School | Bothell Campus.
Top Ranked Private High Schools Belonging to American Montessori Society (AMS) in Washington (2025-26)
School
Location
Quick Facts
19102 North Creek Parkway
Bothell, WA 98011
(425) 482-3184
Bothell, WA 98011
(425) 482-3184
Gr: NS-12 | 459 students Avg. class size: 20 students Sports: 7 | Extracurrculars: 25 Tuition listed
Harbor Montessori
Montessori School
5414 Comte Dr Nw
Gig Harbor, WA 98335
(253) 851-5722
Gig Harbor, WA 98335
(253) 851-5722
Gr: PK-9 | 175 students
Recent Articles

Why Private School in 2025?
Learn the key benefits of private school in 2025, from academics to values. Expert insights for parents making the right choice.

2025 Guides to Private Schools for Parents
Discover the best 2025 private school guides, updated tuition, demographics, and expert advice for parents choosing private education.

So Many Choices: 2025 Private School Guide
Explore key factors in choosing a private school in 2025, from tuition to teaching styles. Get expert insights to guide your family’s decision.