For the 2026-27 school year, there are 2 college-prep and junior boarding schools serving 725 students located throughout Idaho.
You can also browse our full boarding school directory or specify additional search criteria.
Historical Statistics Overview
This State (ID)
US
# Schools
2 Schools
271 Schools
# Students
765 Students
107,111 Students
Academics and Faculty
This State (ID)
US
Average Student-Teacher Ratio
7:1
8:1
% Faculty with Advanced Degree
66%
69%
Academic Programs
This State (ID)
US
Avg. AP Courses
n/a
22
Avg. IB Courses
60
28
Avg. Class Size
17
13
Academic Performance
This State (ID)
US
Avg. SAT Score
1293
1270
Avg. ACT Score
30
27
Avg. Acceptance Rate
63%
59%
Tuition and Finances
This State (ID)
US
Avg. Tuition (Boarding)
$61,000
$64,480
Avg. Tuition (Day)
$32,900
$38,054
Avg. Tuition (International)
n/a
$62,481
Avg. Financial Aid Rate
28%
42%
Avg. Financial Aid Grant
$13,000
$26,973
Avg. Endowment
$6 MM
$83 MM
Student Diversity
This State (ID)
US
% Students of Color
11%
30%
% International Students
15%
27%
% Boarding Students
10%
59%
Top Idaho Boarding Schools (2026-27)
School
Location
Quick Facts
5521 East Warm Springs Avenue
Boise, ID 83716
(208) 424-5000
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
Sun Valley, ID 83353
(208) 622-3960
Gr: 9-12 | PK-12 (day) | 405 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.
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