For the 2026 school year, there are 20 private high schools belonging to National Association of Independent Schools (NAIS) serving 9,791 students in Washington. You can also find more schools membership associations in Washington.
The top-ranked private high schools belonging to National Association of Independent Schools (NAIS) in Washington include The Bear Creek School, Saint George's School, and Annie Wright Schools.
The average tuition cost is $34,612, which is higher than the Washington private high school average tuition cost of $17,523.
Top-Ranked 草榴社区 High Schools Belonging to National Association of Independent Schools (NAIS) in Washington (2026)
School
Location
Quick Facts
8905 208th Avenue NE
Redmond, WA 98053
(425) 898-1720
Redmond, WA 98053
(425) 898-1720
Gr: NS-12 | 948 students Avg. class size: 16 students Sports: 10 | Extracurrculars: 14 Tuition & acceptance rate listed
7723 Chambers Creek Rd W University Place
University Place, WA 98467
(253) 620-8373
University Place, WA 98467
(253) 620-8373
Gr: PK-12 | 578 students Avg. class size: 14 students Sports: 11 | Extracurrculars: 47 Tuition & acceptance rate listed
232 228th Avenue SE
Sammamish, WA 98074
(425) 295-3000
Sammamish, WA 98074
(425) 295-3000
Gr: 6-12 | 836 students Avg. class size: 19 students Sports: 19 | Extracurrculars: 22 Tuition & acceptance rate listed
The Northwest School
(10)
1415 Summit Ave
Seattle, WA 98122
(206) 816-6032
Seattle, WA 98122
(206) 816-6032
Gr: 6-12 | 446 students Avg. class size: 17 students Sports: 6 | Extracurrculars: 14 Tuition & acceptance rate listed
8000 25th Ave NE
Seattle, WA 98115
(206) 525-2714
Seattle, WA 98115
(206) 525-2714
Gr: 6-12 | 746 students Avg. class size: 18 students Sports: 8 | Extracurrculars: 7 Tuition listed
22500 SE 64th PL, #150
Bellevue, WA 98027
(425) 885-6296
Bellevue, WA 98027
(425) 885-6296
Gr: 1-12 | 23 students Avg. class size: 1 student Tuition & acceptance rate listed
Dartmoor School![Dartmoor School Photo - Dartmoor School Seattle Campus]( "Dartmoor School Photo - Dartmoor School Seattle Campus")
Alternative School
6515 15th Ave NE
Seattle, WA 98115
(425) 885-6296
Seattle, WA 98115
(425) 885-6296
Gr: 1-12 | 37 students Avg. class size: 1 student Tuition & acceptance rate listed
Dartmoor School![Dartmoor School Photo - 1:1 Instruction]( "Dartmoor School Photo - 1:1 Instruction")
Alternative School
19515 North Creek Pkwy. #208
Bothell, WA 98011
(425) 885-6296
Bothell, WA 98011
(425) 885-6296
Gr: 1-12 | 29 students Avg. class size: 1 student Tuition & acceptance rate listed
827 N Tacoma Ave
Tacoma, WA 98403
(253) 272-2216
Tacoma, WA 98403
(253) 272-2216
Gr: NS-12 | 902 students Avg. class size: 14 students Sports: 8 | Extracurrculars: 30 Tuition listed
3400 E Harrison Street
Seattle, WA 98112
(206) 326-7736
Seattle, WA 98112
(206) 326-7736
Gr: K-12 | 735 students Avg. class size: 15 students Sports: 9 Tuition listed
10613 NE 38th Place
Kirkland, WA 98033
(425) 822-5668
Kirkland, WA 98033
(425) 822-5668
Gr: 5-12 | 538 students Avg. class size: 16 students Sports: 11 | Extracurrculars: 24 Tuition & acceptance rate listed
4800 139th Avenue SE
Bellevue, WA 98006
(425) 641-0700
Bellevue, WA 98006
(425) 641-0700
Gr: 5-12 | 205 students Avg. class size: 12 students Sports: 13 | Extracurrculars: 30 Tuition listed
728 21st Ave E
Seattle, WA 98112
(206) 323-4272
Seattle, WA 98112
(206) 323-4272
Gr: 9-12 | 575 students Avg. class size: 21 students Sports: 17 Tuition & acceptance rate listed
3606 NE 78th St
Vancouver, WA 98665
(360) 574-1613
Vancouver, WA 98665
(360) 574-1613
Gr: NS-12 | 1,110 student Avg. class size: 20 students Sports: 11 | Extracurrculars: 13 Tuition & acceptance rate listed
20301 NE 108th Street
Redmond, WA 98053
(425) 868-1000
Redmond, WA 98053
(425) 868-1000
Gr: 5-12 | 574 students Avg. class size: 14 students Sports: 9 | Extracurrculars: 16 Tuition & acceptance rate listed
2929 W Waikiki Road
Spokane, WA 99208
(509) 466-1636
Spokane, WA 99208
(509) 466-1636
Gr: K-12 | 311 students Avg. class size: 12 students Sports: 10 | Extracurrculars: 16 Tuition & acceptance rate listed
1201 E Union Street
Seattle, WA 98122
(206) 323-6600
Seattle, WA 98122
(206) 323-6600
Gr: 6-12 | 772 students Avg. class size: 18 students Sports: 13 | Extracurrculars: 25 Tuition & acceptance rate listed
12280 Woodinville Redmond Rd Ne
Redmond, WA 98052
(425) 380-5670
Redmond, WA 98052
(425) 380-5670
Gr: 5-12 | 306 students Sports: 8 | Extracurrculars: 15 Tuition listed
711 228th Ave Ne
Sammamish, WA 98074
(425) 836-1600
Sammamish, WA 98074
(425) 836-1600
Gr: 6-12 | 17 students Tuition listed
505 Spring St
Friday Harbor, WA 98250
(360) 378-6393
Friday Harbor, WA 98250
(360) 378-6393
Gr: 6-12 | 103 students Avg. class size: 14 students Sports: 13 | Extracurrculars: 11 Tuition & acceptance rate listed
Recent Articles
Project Based Learning in 草榴社区 Schools Guide
Explore project-based learning in private schools, outcomes, assessment methods, and what parents should expect in 2026.
AI Data Privacy Policies in Independent Schools
Learn how independent schools manage AI data privacy, key policies, risks, and what parents should look for in 2026.
草榴社区 School Governance Structures Explained
Learn how private school governance structures, board roles, and transparency shape school quality and accountability.
