The average private high school endowment in Washington is $49.6M (2026).
The private high school in Washington with the highest endowment is Willows Preparatory School, with a endowment of $500M.
Endowment Range: $1M
$500M
Avg. Endowment: $49.6M
Average 草榴社区 High School endowment in Washington (2026)
School
Endowment
Grades
Location
Rank: #11.
Endowment: $500 M
Grades: 5-12
12280 Woodinville Redmond Rd Ne
Redmond, WA 98052
(425) 380-5670
Redmond, WA 98052
(425) 380-5670
Rank: #2 - 82. - 8.
Bishop Blanchet High School![Bishop Blanchet High School Photo Bishop Blanchet High School Photo]()

(Catholic)
Endowment: $50 M
Grades: 9-12
8200 Wallingford Ave N
Seattle, WA 98103
(206) 527-7711
Seattle, WA 98103
(206) 527-7711
Rank: #2 - 82. - 8.
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. 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
Endowment: $50 M
Grades: 1-12
4588 Klahanie Dr SE Suite 401
Issaquah, WA 98029
(425) 836-1600
Issaquah, WA 98029
(425) 836-1600
Rank: #2 - 82. - 8.
Endowment: $50 M
Grades: 7-12
811 21st St Se
Puyallup, WA 98372
(253) 841-1776
Puyallup, WA 98372
(253) 841-1776
Rank: #2 - 82. - 8.
Endowment: $50 M
Grades: K-12
202 E 56th Street
Tacoma, WA 98404
(253) 475-9513
Tacoma, WA 98404
(253) 475-9513
Rank: #2 - 82. - 8.
Endowment: $50 M
Grades: 6-12
316 Fourth Avenue South
Kirkland, WA 98033
(425) 298-6451
Kirkland, WA 98033
(425) 298-6451
Rank: #2 - 82. - 8.
King's Schools![King's Schools Photo - Junior High Armor Adventure. King's Schools Photo - Junior High Armor Adventure.]()

(Christian)
Endowment: $50 M
Grades: PK-12
19303 Fremont Ave. N.
Seattle, WA 98133
(206) 289-7783
Seattle, WA 98133
(206) 289-7783
Rank: #2 - 82. - 8.
Mason County Christian School
(Baptist)
Endowment: $50 M
Grades: K-10
470 E Eagle Ridge Dr
Shelton, WA 98584
(360) 426-7616
Shelton, WA 98584
(360) 426-7616
Rank: #99.
Endowment: $40 M
Grades: PK-12
7723 Chambers Creek Rd W University Place
University Place, WA 98467
(253) 620-8373
University Place, WA 98467
(253) 620-8373
Rank: #1010.
Endowment: $37 M
Grades: NS-12
827 N Tacoma Ave
Tacoma, WA 98403
(253) 272-2216
Tacoma, WA 98403
(253) 272-2216
Rank: #1111.
Endowment: $33 M
Grades: 5-12
4800 139th Avenue SE
Bellevue, WA 98006
(425) 641-0700
Bellevue, WA 98006
(425) 641-0700
Rank: #1212.
Endowment: $30 M
Grades: 9-12
2300 S Washington St
Tacoma, WA 98405
(253) 752-7701
Tacoma, WA 98405
(253) 752-7701
Rank: #1414.
King's School
(Christian)
Endowment: $10 M
Grades: PK-12
19303 Fremont Ave N Ms 40
Seattle, WA 98133
(206) 546-7211
Seattle, WA 98133
(206) 546-7211
Rank: #1515.
Endowment: $7.5 M
Grades: PK-12
600 N Western Ave
Wenatchee, WA 98801
(509) 662-2723
Wenatchee, WA 98801
(509) 662-2723
Rank: #1616.
Endowment: $7 M
Grades: K-12
2929 W Waikiki Road
Spokane, WA 99208
(509) 466-1636
Spokane, WA 99208
(509) 466-1636
Rank: #17 - 1817. - 18.
Endowment: $2 M
Grades: NS-12
1717 S Union Ave
Tacoma, WA 98405
(253) 756-5317
Tacoma, WA 98405
(253) 756-5317
Rank: #17 - 1817. - 18.
Endowment: $2 M
Grades: NS-12
4320 87th Avenue SE
Mercer Island, WA 98040
(206) 232-5432
Mercer Island, WA 98040
(206) 232-5432
Rank: #19 - 2119. - 21.
Endowment: $1 M
Grades: NS-12
3606 NE 78th St
Vancouver, WA 98665
(360) 574-1613
Vancouver, WA 98665
(360) 574-1613
Rank: #19 - 2119. - 21.
Endowment: $1 M
Grades: PK-12
18943 120th Ave NE
Bothell, WA 98011
(425) 774-6622
Bothell, WA 98011
(425) 774-6622
Rank: #19 - 2119. - 21.
Walla Walla Valley Academy
(Seventh Day Adventist)
Endowment: $1 M
Grades: 9-12
300 Sw Academy Way
College Place, WA 99324
(509) 525-1050
College Place, WA 99324
(509) 525-1050
Frequently Asked Questions
What is the Washington average private high schools endowment?
The Washington average private high schools endowment is $49.6M for 2026.
What are the private high schools with the highest endowment in Washington?
The top-ranked private high schools in Washington include Willows Preparatory School, Bishop Blanchet High School and Brightmont Academy - Sammamish.
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