Best Washington Private Schools Belonging To Membership Associations (2024)

For the 2024 school year, there are 483 private schools belonging to membership associations in Washington.

The most popular school membership associations are Other school association(s) (16% of schools), National Catholic Educational Association (NCEA) (16% of schools) and Association of Christian Schools International (ACSI) (14% of schools).

The Bear Creek School Photo - The Bear Creek School was founded in 1988.

Dartmoor School Photo - One-to-One lnstruction

Whidbey Island Waldorf School Photo - Whidbey Island Waldorf School Morning Circle and Song together as a community

West Sound Academy Photo - Frodel Hall has drama and music studios plus an art gallery.

Spring Academy Photo - Spring Academy is a progressive private school providing a forward-thinking alternative to the traditional school environment. We believe that each student is unique and deserves an individualized educational experience that is completely customized and taught in a one-on-one setting.

Rainier Christian Middle and High School Photo

Dartmoor School Photo - Dartmoor School Seattle Campus

Charles Wright Academy Photo - ACADEMIC EXCELLENCE: Our graduating seniors consistently place in the top 10% of Washington state students and matriculate to top colleges and universities. A strong college counseling program, academic challenge, access to advanced work, a developmentally appropriate progression of skills, and a commitment to service-learning ensure our students are prepared to navigate the future with confidence.

Forest Ridge School Of The Sacred Heart Photo

Dartmoor School Photo - Dartmoor Bothell Campus

BASIS Independent Bellevue Photo - Future Upgrade - Adding a track to the field.

Fusion Academy Seattle Photo - Classes at Fusion are one-to-one: one student and one teacher per classroom. Students have different teachers for different subjects, and teachers act as mentors in the one-to-one setting.

Top Ranked Washington Private Schools by Membership Association (2024)

Membership Association

# Schools

# Students

% Minority

AdvancED, Southern Association of Colleges and Schools, Council on Accreditation and School Improvement

176

14%

Accelerated Christian Education (ACE) or (School of Tomorrow)

557

16%

Accreditation International

134

Alabama Association of Independent Schools (AAIS)

Alternative School Network

23%

American Association of Christian Schools (AACS)

480

18%

American Montessori Society (AMS)

3,976

51%

Association Montessori International (AMI)

416

22%

Association Montessori Internationale (AMI)

355

40%

Association of Christian Schools International (ACSI)

22,377

29%

Association of Christian Teachers and Schools (ACTS)

2,738

33%

Association of Classical and Christian Schools (ACCS)

4,041

22%

Association of Waldorf Schools of North America

1,131

12%

Children and Adults with Attention Deficit or Hyperactivity Disorder (CHADD)

20%

Christian Schools International (CSI)

4,345

17%

Cognia

10,323

36%

Council of Bilingual Education

106

12%

Evangelical Lutheran Education Association (ELEA)

744

35%

General Conference of the Seventh Day Adventist Church (GCSDAC)

1,672

36%

Institute for Independent Education

1,142

21%

International Baccalaureate (IB) World School

1,404

41%

International Boys Schools Coalition

838

51%

International Montessori Council (IMC)

Jesuit Secondary Education Association (JSEA)

2,585

32%

Learning Disabilities Association of America (LDA)

242

15%

Middle States Association of Colleges and Secondary Schools

578

17%

Montessori Educational Programs International (MEPI)

26%

National Association for the Education of Young Children

2,480

38%

National Association of College Admissions Counselors

1,344

61%

National Association of Episcopal Schools (NAES)

30%

National Association of Independent Schools (NAIS)

16,763

36%

National Association of Laboratory Schools

22%

National Association of Private Catholic and Independent Schools (NAPCIS)

169

56%

National Association of Private Special Education Centers

38%

National Catholic Education Association

421

47%

National Catholic Educational Association (NCEA)

22,465

30%

National Christian School Association (NCSA)

230

24%

National Coalition of Alternative Community Schools

National Coalition of Girls

1,391

50%

National Council for Private School Accreditation

1,486

45%

National Honor Society (NHS)

5,341

43%

National Independent Private Schools Association

2,003

18%

National Junior Honor Society (NJHS)

5,135

44%

National Lutheran Schools Accreditation

1,183

21%

National Society of Hebrew Day Schools (NSHDS)

259

Northwest Association of Accredited Schools

8,403

31%

Northwest Christian Schools International (NWCSI)

400

11%

Not Available (School did not report any membership associatons).

13%

NWAIS (Northwest Association of Independent Schools)

9,365

35%

Other associations(s) for exceptional children

212

34%

Other Montessori association(s)

3,272

40%

Other religious school association(s)

3,620

28%

Other school association(s)

17,431

28%

Other special emphasis association(s)

2,984

26%

Southern Baptist Association of Christian Schools (SBACS)

633

23%

State or regional independent school association

8,781

27%

The Association of Boarding Schools (TABS)

838

51%

Waldorf Early Childhood Association of North America

518

14%

Western Association of Schools and Colleges (WASC)

1,451

22%

Wisconsin Evangelical Lutheran Synod School Accreditation (WELSSA)

21%

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