The average private high school endowment in Idaho is $7.6M (2026).
The private high school in Idaho with the highest endowment is Bishop Kelly High School, with a endowment of $10M.
Endowment Range: $4M
$10M
Avg. Endowment: $7.6M
Average Private High School endowment in Idaho (2026)
School
Endowment
Grades
Location
Rank: #11.
Bishop Kelly High School ![Bishop Kelly High School Photo]( "Bishop Kelly High School Photo")
(Catholic)
Endowment: $10 M
Grades: 9-12
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
Boise, ID 83709
(208) 375-6010
Rank: #22.
Endowment: $8.7 M
Grades: PK-12
Po Box 2118
Sun Valley, ID 83353
(208) 622-3960
Sun Valley, ID 83353
(208) 622-3960
Rank: #33.
Endowment: $4 M
Grades: PK-12
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Boise, ID 83716
(208) 424-5000
Frequently Asked Questions
What is the Idaho average private high schools endowment?
The Idaho average private high schools endowment is $7.6M for 2026.
What are the private high schools with the highest endowment in Idaho?
The top-ranked private high schools in Idaho include Bishop Kelly High School, Sun Valley Community School and Riverstone International School.
Recent Articles
Private School Closures and Consolidations: Warning Signs to Watch
Learn the financial, enrollment, and leadership warning signs that may indicate a private school is at risk of closure or consolidation, and how families can prepare.
AI Tutoring in Private Schools: Innovation or Risk?
Discover how AI tutoring is changing private education, the benefits and risks for students, and what parents should ask before enrolling.
What New Cell Phone Laws Mean for Private School Families
Learn how new cell phone laws are affecting private schools, what parents should expect, and how to evaluate school technology policies in 2026.