Private School Review - Established 2003
Sun Valley Community School Photo - Students participate in four outdoor trips each year as a part of their school experience. We have over 50 years of experience in outdoor education with an Outdoor Leadership Academy for students who want to become leaders in the outdoor field.
Sun Valley Community School

Best Idaho Private High Schools Belonging to National Association of Independent Schools (NAIS) (2026)

For the 2026 school year, there are 4 private high schools belonging to National Association of Independent Schools (NAIS) serving 1,460 students in Idaho. You can also find more schools membership associations in Idaho.
The top-ranked private high schools belonging to National Association of Independent Schools (NAIS) in Idaho include Riverstone International School, Genesis Preparatory Academy, and Sun Valley Community School.
The average acceptance rate is 72%, which is lower than the Idaho private high school average acceptance rate of 85%.
25% of private high schools belonging to National Association of Independent Schools (NAIS) in Idaho are religiously affiliated (most commonly Christian).

Top-Ranked Private High Schools Belonging to National Association of Independent Schools (NAIS) in Idaho (2026)

School
Location
Quick Facts
Genesis Preparatory Academy
(Christian)
(1)
1866 N Cecil Rd Bldg 2
Post Falls, ID 83854
(208) 691-0712
Gr: PK-12 | 501 students
Riverstone International School
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.
(11)
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Gr: PK-12 | 355 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 21 Tuition & acceptance rate listed
Sun Valley Community School
Sun Valley Community School Photo - Athletics are a large part of the SVCS school experience from traditional sports to outdoor sports such as Mountain Bike team and Cutthroat Kayak.
Po Box 2118
Sun Valley, ID 83353
(208) 622-3960
Gr: PK-12 | 446 students Avg. class size: 15 students Sports: 21 | Extracurrculars: 11 Tuition & acceptance rate 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

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