Riverside Christian School Photo - Knowledge Bowl

Top 20 Best Washington Private Schools Belonging to Northwest Association of Accredited Schools (2025)

For the 2025 school year, there are 34 private schools belonging to Northwest Association of Accredited Schools serving 7,712 students in Washington. You can also find more schools membership associations in Washington.
The top ranked private schools belonging to Northwest Association of Accredited Schools in Washington include Auburn Adventist Academy, Brightmont Academy - Sammamish, and Forest Ridge School Of The Sacred Heart.
The average tuition cost is $18,851, which is higher than the Washington private school average tuition cost of $14,043.
56% of private schools belonging to Northwest Association of Accredited Schools in Washington are religiously affiliated (most commonly Catholic and Christian).

Top Ranked Private Schools Belonging to Northwest Association of Accredited Schools in Washington (2025)

School
Location
Grades
Students
Brightmont Academy - Sammamish
Brightmont Academy - Sammamish Photo - Taking individual courses at Brightmont Academy offers an effective one-to-one instruction alternative for students to learn concepts and skills by progressing at their own pace.
Special Program Emphasis
4588 Klahanie Dr SE Suite 401
Issaquah, WA 98029
(425) 836-1600
Grades: 1-12
| n/a students
Dartmoor School
Dartmoor School Photo - Dartmoor School Seattle Campus
Alternative School
6515 15th Ave NE
Seattle, WA 98115
(425) 885-6296
Grades: 1-12
| 37 students
Dartmoor School
Dartmoor School Photo - Dartmoor Bothell Campus
Alternative School
19515 North Creek Pkwy. #208
Bothell, WA 98011
(425) 885-6296
Grades: 1-12
| 29 students
Dartmoor School
Dartmoor School Photo - One-to-One instruction helps students excel
Alternative School
2800 Northup Way, Suite 120
Bellevue, WA 98004
(425) 885-6296
Grades: 1-12
| 43 students
Dartmoor School
Dartmoor School Photo - One-to-One lnstruction
Alternative School
(1)
22500 SE 64th PL, #150
Issaquah, WA 98027
(425) 427-1400
Grades: 4-12
| 23 students
Forest Ridge School Of The Sacred Heart
Forest Ridge School Of The Sacred Heart Photo
All-girls (Catholic)
(2)
4800 139th Avenue SE
Bellevue, WA 98006
(425) 641-0700
Grades: 5-12
| 225 students
Silverwood School
Silverwood School Photo - Welcome to Silverwood School!
Montessori School
(22)
14000 Central Valley Rd NW
Poulsbo, WA 98370
(360) 697-7526
Grades: K-8
| 84 students
Evergreen Academy
Evergreen Academy Photo
(5)
16017 118th Place NE
Bothell, WA 98011
(425) 488-8000
Grades: K-5
| 175 students
All Saints Elementary School
(Catholic)
504 2nd Street Sw
Puyallup, WA 98371
(253) 845-5025
Grades: PK-8
| 343 students
Arbor Schools
Montessori School
(3)
1107 228th Avenue Se
Sammamish, WA 98075
(425) 392-8053
Grades: PK-6
| 170 students
Auburn Adventist Academy
Auburn Adventist Academy Photo
(Seventh Day Adventist)
(3)
5000 Auburn Way S
Auburn, WA 98092
(253) 939-5000
Grades: 9-12
| 235 students
Bethlehem Lutheran School
(Lutheran Church Missouri Synod)
2505 W. 27th Ave.
Kennewick, WA 99337
(509) 582-5624
Grades: PK-8
| 286 students
Brightmont Academy - Redmond
Brightmont Academy - Redmond Photo - Taking individual courses at Brightmont Academy offers an effective one-to-one instruction alternative for students to learn concepts and skills by progressing at their own pace.
Alternative School
7345 164th Ave NE, Ste I-135
Redmond, WA 98052
(425) 373-0800
Grades: 1-12
| n/a students
115 NE 100th St #200
Seattle, WA 98125
(206) 284-2300
Grades: 1-12
| n/a students
Gateway Christian Schools - Crosspoint
Gateway Christian Schools - Crosspoint Photo - Reading, Writing & Math
(Christian)
(2)
4012 Chico Way NW
Bremerton, WA 98312
(360) 377-7700
Grades: K-12
| 302 students
Grace Academy
Grace Academy Photo
(Christian)
(2)
8521 67th Avenue NE
Marysville, WA 98270
(360) 659-8517
Grades: K-12
| 473 students
Lake Washington Girls Middle School
Lake Washington Girls Middle School Photo
All-girls
(4)
2100 S. Walker Street
Seattle, WA 98144
(206) 709-3800
Grades: 6-8
| 95 students
Mount Vernon Christian School
Mount Vernon Christian School Photo
(Christian)
820 W Blackburn Rd
Mount Vernon, WA 98273
(360) 424-9157
Grades: PK-12
| 502 students
O'dea High School
All-boys (Catholic)
(1)
802 Terry Avenue
Seattle, WA 98104
(206) 923-7551
Grades: 9-12
| 500 students
Riverside Christian School
Riverside Christian School Photo - Our beautiful campus.
(Christian)
(3)
721 Keys Road
Yakima, WA 98901
(509) 965-2602
Grades: NS-12
| 423 students
St. Charles Borromeo Catholic School
(Catholic)
(2)
7112 S 12th St
Tacoma, WA 98465
(253) 564-5185
Grades: PK-8
| 502 students
St. Joseph Catholic School
St. Joseph Catholic School Photo
(Catholic)
6500 Highland Drive
Vancouver, WA 98661
(360) 696-2586
Grades: PK-8
| 473 students
St. Mary Magdalen Catholic School
St. Mary Magdalen Catholic School Photo - SMM Strings Orchestra Rehearsing
(Catholic)
(6)
8615 7th Ave SE
Everett, WA 98208
(425) 353-7559
Grades: PK-8
| 421 students
Saint Patrick Catholic School
Saint Patrick Catholic School Photo - Students dive into exciting new topics, fostering a love for learning and curiosity.
(Catholic)
(7)
1112 North G Street
Tacoma, WA 98403
(253) 274-4134
Grades: NS-8
| 372 students
Seattle Academy
Seattle Academy Photo
Special Program Emphasis
(1)
1201 E Union Street
Seattle, WA 98122
(206) 323-6600
Grades: 6-12
| 772 students
Villa Academy
Villa Academy Photo
(Catholic)
(5)
5001 Ne 50th Street
Seattle, WA 98105
(206) 524-8885
Grades: PK-8
| 383 students
Walla Walla Valley Academy
(Seventh Day Adventist)
300 Sw Academy Way
College Place, WA 99324
(509) 525-1050
Grades: 9-12
| 128 students
Yakima Adventist Christian School
Yakima Adventist Christian School Photo
(Seventh Day Adventist)
1200 City Reservoir Rd
Yakima, WA 98908
(509) 966-1933
Grades: PK-10
| 91 students
Apex Learning Virtual School
Alternative School
(1)
1215 Fourth Avenue, Ste 1500
Seattle, WA 98161
(855) 550-2547
Grades: 9-12
| n/a students
Green River Montessori
Montessori School
(2)
1116 Harvey Rd and 922 12th NE
Auburn, WA 98002
(253) 833-7010
Grades: PK-5
| 89 students
Holy Family Catholic School
(Catholic)
1002 Chestnut Street
Clarkston, WA 99403
(509) 758-6621
Grades: PK-8
| 140 students
New Horizon School
New Horizon School Photo
Special Education School
(17)
1111 S Carr Road
Renton, WA 98055
(142) 522-6371
Grades: 4-12
| 50 students
Peace Lutheran School
Peace Lutheran School Photo - Peace Lutheran School
(Lutheran Church Missouri Synod)
1234 Ne Riddell Road
Bremerton, WA 98310
(360) 373-2116
Grades: PK-8
| 212 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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