The average private elementary school endowment in Idaho is $53M (2025-26).
The private elementary school in Idaho with the highest endowment is Challenger School - Boise, with a endowment of $200M.
Endowment Range: $2.3M
$200M
Avg. Endowment: $53M
Average Private Elementary School endowment in Idaho (2025-26)
School
Endowment
Grades
Location
Rank: #11.
Challenger School - Boise![Challenger School - Boise Photo Challenger School - Boise Photo]()

Daycare / Preschool
Endowment: $200 M
Grades: NS-1
5551 W. Bloom Street
Boise, ID 83703
(208) 338-9500
Boise, ID 83703
(208) 338-9500
Rank: #22.
Logan Christian Academy
Alternative School (Christian)
Endowment: $50 M
Grades: K-7
219 N Roosevelt St
Boise, ID 83706
(208) 912-2783
Boise, ID 83706
(208) 912-2783
Rank: #33.
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: #44.
Endowment: $4 M
Grades: PK-12
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Boise, ID 83716
(208) 424-5000
Rank: #55.
Endowment: $2.3 M
Grades: NS-8
412 N Monroe St
Moscow, ID 83843
(208) 882-2121
Moscow, ID 83843
(208) 882-2121
Frequently Asked Questions
What is the Idaho average private elementary schools endowment?
The Idaho average private elementary schools endowment is $53M for 2025-26.
What are the private elementary schools with the highest endowment in Idaho?
The top ranked private elementary schools in Idaho include Challenger School - Boise, Logan Christian Academy and Sun Valley Community School.
Recent Articles

Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.

A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.

The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.