Private School Review - Established 2003
Bishop Kelly High School Top 3 · Most AP Courses (ID)
Sun Valley Community School Top 3 · Lowest Acceptance Rate (ID)
Riverstone International School Top 3 · Most AP Courses (ID)

Average Private High School endowment in Idaho

The average private high school endowment in Idaho is $8M (2026-27).
The private high school in Idaho with the highest endowment is Bishop Kelly High School and Sun Valley Community School, each with a endowment of $10M.

Quick Facts (2026-27)

  • # ID Schools Ranked: 3
  • Top 20 Range (Endowment): $4–$10
  • ID School Avg.: $8
  • National School Avg.: $42

Quick Facts (2026-27)

  • # ID Schools Ranked: 3
  • Top 20 Range (Endowment): $4–$10
  • ID School Avg.: $8
  • National School Avg.: $42
Show school map — Idaho (endowment range: $4–$10, avg $8)
Endowment Range: $4M $10M Avg. Endowment: $8M

Average Private High School endowment in Idaho (2026-27)

Showing 3 schools
Bishop Kelly High School Photo
#1(T1–T2)Bishop Kelly High School
Gr: 9-12 | 945 students
Avg. class size: 21 students
Sports: 19 | Extracurriculars: 32
Catholic
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
$10endowment
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Sun Valley Community School Photo
#1(T1–T2)Sun Valley Community School
Gr: PK-12 | 423 students
Avg. class size: 15 students
Sports: 22 | Extracurriculars: 11
Po Box 2118
Sun Valley, ID 83353
(208) 622-3960
$10endowment
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Riverstone International School Photo
#3Riverstone International School
Gr: PK-12 | 355 students
Avg. class size: 15 students
Sports: 11 | Extracurriculars: 21
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
(11)
$4endowment
View Profile

Frequently Asked Questions

What is the Idaho average private high schools endowment?
The Idaho average private high schools endowment is $8M for 2026-27.
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.

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