Riverstone International School Photo - Riverstone International School is the premier, IB day/boarding school in Boise for Preschool-Gr 12 students. The school's 14 acre campus is nestled between the Boise River and the Greenbelt in Southeast Boise.

Best Boise Private High Schools (2025)

For the 2025 school year, there are 8 private high schools serving 2,281 students in Boise, ID.
The top ranked private high schools in Boise, ID include Riverstone International School, Bishop Kelly High School, and Cole Valley Christian School.
The average acceptance rate is 89%, which is higher than the Idaho private high school average acceptance rate of 86%.
38% of private high schools in Boise, ID are religiously affiliated (most commonly Christian and Catholic).

Top Ranked Boise Private High Schools (2025)

School
Location
Quick Facts
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Gr: PK-12 | 416 students Avg. class size: 15 students Sports: 10 | Extracurrculars: 21 Tuition & acceptance rate listed
Bishop Kelly High School
Bishop Kelly High School Photo
(Catholic)
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
Gr: 9-12 | 945 students Avg. class size: 21 students Sports: 19 | Extracurrculars: 32 Tuition & acceptance rate listed
Cole Valley Christian School
(Christian)
8775 W Ustick Rd
Boise, ID 83704
(208) 947-1212
Gr: 7-12 | 513 students Avg. class size: 20 students Tuition listed
Foothills School of Arts & Sciences
Foothills School of Arts & Sciences Photo - Foothills students become capable and confident learners during their time at Foothills! Foothills allows students to share their voice, empowers them to become critical thinkers and open-minded listeners, and promotes a positive school culture where everyone is valued.
Special Program Emphasis
601 South 9th Street
Boise, ID 83702
(208) 331-9260
Gr: PK-9 | 158 students Avg. class size: 13 students Tuition & acceptance rate listed
Heroes Academy
Montessori School
(3)
5771 N Discovery Way
Boise, ID 83713
(208) 991-4376
Gr: PK-12 | 79 students Tuition listed
Intermountain School & Hosp
Alternative School
303 N Allumbaugh St
Boise, ID 83704
(208) 350-2324
Gr: 7-12 | 20 students
One Stone
Alternative School
1151 W Miller St
Boise, ID 83702
(208) 451-3825
Gr: 9-12 | 126 students
Petra Christian Academy
(Christian)
3080 Wildwood St
Boise, ID 83713
(208) 505-0066
Gr: 1-9 | 24 students
[+] Show Closed Private Schools in Boise, Idaho

Boise, Idaho Private Schools (Closed)

School
Location
Quick Facts
1439 S Weideman Ave
Boise, ID 83709
(208) 322-8981
Gr: PK-K | 14 students
12000 W Fairview Ave
Boise, ID 83713
(208) 376-7272
Gr: K-6 | 66 students

Frequently Asked Questions

What are the top ranked private high schools in Boise, ID?
The top ranked private high schools in Boise, ID include Riverstone International School, Bishop Kelly High School, and Cole Valley Christian School.
How many private high schools are located in Boise?
8 private high schools are located in Boise.
How diverse are private high schools in Boise?
Boise private high schools are approximately 17% minority students, which is higher than the Idaho private school average of 12%.
What percentage of private high schools are religiously affiliated in Boise?
38% of private high schools in Boise are religiously affiliated (most commonly Christian and Catholic).
Which private high schools in Boise are often viewed compared to one another?

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