For the 2025-26 school year, there are 17 nonsectarian private high schools in Idaho. You can also find more religiously affiliated schools in Idaho.
The top ranked nonsectarian private high schools in Idaho include Riverstone International School, The North Fork School, and Sun Valley Community School.
Top Ranked Nonsectarian Private High Schools in Idaho (2025-26)
School
Location
Quick Facts
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Boise, ID 83716
(208) 424-5000
Gr: PK-12 | 416 students Avg. class size: 15 students Sports: 10 | Extracurrculars: 21 Tuition & acceptance rate listed
Acton Academy Twin Falls![Acton Academy Twin Falls Photo]( "Acton Academy Twin Falls Photo")
Montessori School
1830 Addison Ave E
Twin Falls, ID 83301
(208) 420-9520
Twin Falls, ID 83301
(208) 420-9520
Gr: NS-10 | 36 students Avg. class size: 15 students Sports: 1 Tuition & acceptance rate listed
The North Fork School![The North Fork School Photo - Hard work. Hard statistics. Open doors.]( "The North Fork School Photo - Hard work. Hard statistics. Open doors.")
Special Program Emphasis
812 Reedy Lane
Mccall, ID 83638
(208) 630-4028
Mccall, ID 83638
(208) 630-4028
Gr: 3-12 | 15 students Avg. class size: 6 students Tuition & acceptance rate listed
Northwest Childrens Home Education Center
Special Education School
602 13th St
Lewiston, ID 83501
(208) 746-8206
Lewiston, ID 83501
(208) 746-8206
Gr: 1-12 | 55 students Acceptance rate listed
Po Box 2118
Sun Valley, ID 83353
(208) 622-3960
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
Alzar School
Special Program Emphasis
1600 Airport Way
Cascade, ID 83611
(833) 862-5927
Cascade, ID 83611
(833) 862-5927
Gr: 10-11 | 42 students
3770 E Black Canyon Hwy
Emmett, ID 83617
(208) 365-3437
Emmett, ID 83617
(208) 365-3437
Gr: 6-9 | 40 students Avg. class size: 4 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.]( "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
Boise, ID 83702
(208) 331-9260
Gr: PK-9 | 158 students Avg. class size: 13 students Tuition & acceptance rate listed
Hall Institute For The Arts
Special Program Emphasis
1167 E Iron Eagle Dr
Eagle, ID 83616
(208) 957-7024
Eagle, ID 83616
(208) 957-7024
Gr: 7-12 | 28 students
Innercept
Alternative School
1115 W Ironwood Dr
Coeur D Alene, ID 83814
(208) 665-7178
Coeur D Alene, ID 83814
(208) 665-7178
Gr: 9-12 | 13 students
Intermountain School & Hosp
Alternative School
303 N Allumbaugh St
Boise, ID 83704
(208) 350-2324
Boise, ID 83704
(208) 350-2324
Gr: 7-12 | 20 students
Northwest Children's Home
Special Education School
419 22nd Ave
Lewiston, ID 83501
(208) 746-8206
Lewiston, ID 83501
(208) 746-8206
Gr: 3-12 | 53 students
Original Gangster's Academy
Alternative School
341 Creekside Place
Nampa, ID 83686
(208) 880-5655
Nampa, ID 83686
(208) 880-5655
Gr: 9-12 | 27 students
The Sage School
Alternative School
1451 Aviation Dr
Hailey, ID 83333
(208) 788-0120
Hailey, ID 83333
(208) 788-0120
Gr: 6-12 | 83 students Tuition listed
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