For the 2026 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 Northwest Childrens Home Education Center, Riverstone International School, and Acton Academy Twin Falls.
Top-Ranked Nonsectarian Private High Schools in Idaho (2026)
School
Location
Quick Facts
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
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Boise, ID 83716
(208) 424-5000
Gr: PK-12 | 355 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 21 Tuition & 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
3067 Mosquito Creek Rd
Clark Fork, ID 83811
(406) 847-4400
Clark Fork, ID 83811
(406) 847-4400
Gr: 8-12 | 14 students
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 Academy
Alternative School
139 Success Ln
Naples, ID 83847
(208) 267-7522
Naples, ID 83847
(208) 267-7522
Gr: 12 | 40 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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