Yellow Wood Academy Photo - Some of our Upper School students learn to grow as a team while off at Winter Camp!

Best Washington Private High Schools Belonging to Middle States Association of Colleges and Secondary Schools (2025)

For the 2025 school year, there are 2 private high schools belonging to Middle States Association of Colleges and Secondary Schools serving 578 students in Washington. You can also find more schools membership associations in Washington.
The top ranked private high school belonging to Middle States Association of Colleges and Secondary School in Washington is Cascade Christian Academy.
The average acceptance rate is 92%, which is higher than the Washington private high school average acceptance rate of 82%.
50% of private high schools belonging to Middle States Association of Colleges and Secondary Schools in Washington are religiously affiliated (most commonly Seventh Day Adventist).

Top Ranked Private High Schools Belonging to Middle States Association of Colleges and Secondary Schools in Washington (2025)

School
Location
Grades
Students
Cascade Christian Academy
Cascade Christian Academy Photo - CCA high school students on Make A Difference Day, cleaning up at Camp Zanika.
(Seventh Day Adventist)
(5)
600 N Western Ave
Wenatchee, WA 98801
(509) 662-2723
Grades: PK-12
| 444 students
Yellow Wood Academy
Yellow Wood Academy Photo - We are so proud of our YWA graduates!
Special Education School
9655 SE 36th Street,
Mercer Island, WA 98040
(206) 236-1095
Grades: K-12
| 134 students

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