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

Comparing Merit Aid vs. Need-Based Aid: Which Matters More Over Four Years?
Comparing Merit Aid vs. Need-Based Aid: Which Matters More Over Four Years?
Learn the differences between merit aid and need-based aid at boarding schools and discover which may provide greater value over four years.
Boarding School During Economic Uncertainty: Lock In Now or Wait?
Boarding School During Economic Uncertainty: Lock In Now or Wait?
Should families commit to boarding school during economic uncertainty or delay enrollment? Learn how tuition, aid, and admissions trends factor into the decision.
When Student Retention Rates Tell a Different Story Than Admissions Marketing
When Student Retention Rates Tell a Different Story Than Admissions Marketing
Learn how boarding school retention rates can reveal strengths and challenges that admissions materials may not fully capture.

Featured Schools