Riverstone International School Photo - Riverstone House, steps away from downtown Boise, is the home-away-from-home for our boarding community. With only 30 students maximum, our students and staff become family.

Best Idaho Boarding Schools (2026)

For the 2026 school year, there are 2 college-prep and junior boarding schools serving 765 students located throughout Idaho.

Top Idaho Boarding Schools (2026)

School
Location
Quick Facts
5521 East Warm Springs Avenue
Boise, ID 83716
(208) 424-5000
Gr: 8-12 | PK-12 (day) | 320 students Student-teacher ratio: 7:1 Avg. class size: 18 students Acceptance rate: 80% Tuition listed
1 Community School Drive
Sun Valley, ID 83353
(208) 622-3960
Gr: 9-12 | PK-12 (day) | 445 students Student-teacher ratio: 6:1 Avg. class size: 15 students Acceptance rate: 45% Tuition listed

Frequently Asked Questions

How many boarding schools are located in Idaho?
There are 2 college-preparatory boarding schools located in Idaho.
What is the oldest boarding school in Idaho?
Sun Valley Community School, founded in 1973, is the oldest boarding school in Idaho.

Recent Articles

What Happens If You Fail a Class at Boarding School?
What Happens If You Fail a Class at Boarding School?
Learn what happens if you fail a class at boarding school, including academic probation, support programs, credit recovery, and college implications.
Independent Study and Research Opportunities at Boarding Schools
Independent Study and Research Opportunities at Boarding Schools
Explore independent study and research opportunities at boarding schools, including mentorship, capstone projects, and college preparation benefits.
Do Boarding School Students Study More? Daily Schedule Breakdown
Do Boarding School Students Study More? Daily Schedule Breakdown
Discover how much boarding school students really study with a realistic daily schedule breakdown and comparison to traditional day schools.

Featured Schools