Riverstone International School Photo - Riverstone International School is the premier, IB day/boarding school in Boise for Preschool-Gr 12 students. The school's 14 acre campus is nestled between the Boise River and the Greenbelt in Southeast Boise.

Average Private High School endowment in Idaho

The average private high school endowment in Idaho is $5.7M (2025).
The private high school in Idaho with the highest endowment is Bishop Kelly High School, with a endowment of $10M.
Endowment Range: $3M $10M Avg. Endowment: $5.7M

Average Private High School endowment in Idaho (2025)

School
Endowment
Grades
Location
Rank: #11.
Bishop Kelly High School
Bishop Kelly High School Photo
(Catholic)
Endowment: $10 M
Grades: 9-12
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
Rank: #22.
Endowment: $4 M
Grades: PK-12
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Rank: #33.
Endowment: $3 M
Grades: PK-12
Po Box 2118
Sun Valley, ID 83353
(208) 622-3960

Frequently Asked Questions

What is the Idaho average private high schools endowment?
The Idaho average private high schools endowment is $5.7M for 2025.
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, Riverstone International School and Sun Valley Community School.

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