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 Idaho Private Schools Belonging to Northwest Association of Accredited Schools (2026)

For the 2026 school year, there are 9 private schools belonging to Northwest Association of Accredited Schools serving 3,172 students in Idaho. You can also find more schools membership associations in Idaho.
The top-ranked private schools belonging to Northwest Association of Accredited Schools in Idaho include Riverstone International School, Cole Valley Christian High School, and Beacon Christian School.
The average acceptance rate is 91%, which is higher than the Idaho private school average acceptance rate of 87%.
67% of private schools belonging to Northwest Association of Accredited Schools in Idaho are religiously affiliated (most commonly Seventh Day Adventist and Christian).

Top-Ranked Private Schools Belonging to Northwest Association of Accredited Schools in Idaho (2026)

School
Location
Quick Facts
Beacon Christian School
(Seventh Day Adventist)
615 Stewart Ave
Lewiston, ID 83501
(208) 743-8361
Gr: K-10 | 35 students Avg. class size: 11 students Tuition 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 High School
Cole Valley Christian High School Photo
(Christian)
(8)
200 E Carlton Ave
Meridian, ID 83642
(208) 947-1212
Gr: NS-12 | 1,452 students Avg. class size: 24 students Sports: 14 | Extracurrculars: 12 Tuition & acceptance rate listed
Cornerstone Christian Academy
(Christian)
(1)
810 N. Chase Rd
Post Falls, ID 83854
(208) 773-5200
Gr: PK-7 | 200 students Avg. class size: 16 students Tuition & acceptance rate listed
Hope Lutheran School
(Lutheran Church Missouri Synod)
(1)
2071 12th Street
Idaho Falls, ID 83404
(208) 529-8080
Gr: PK-6 | 65 students Avg. class size: 12 students Sports: 4 Tuition listed
The North Fork School
The North Fork School Photo - Hard work. Hard statistics. Open doors.
Special Program Emphasis
812 Reedy Lane
Mccall, ID 83638
(208) 630-4028
Gr: 3-12 | 15 students Avg. class size: 6 students Tuition & acceptance rate listed
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
Sandpoint Junior Academy
(Seventh Day Adventist)
2255 Pine Street
Sandpoint, ID 83864
(208) 263-3584
Gr: 1-8 | 31 students Avg. class size: 9 students Tuition listed
1480 S 500 W
Driggs, ID 83422
(208) 354-7898
Gr: PK-8 | 74 students Avg. class size: 13 students Sports: 1 Tuition listed

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