For the 2025 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)
School
Location
Grades
Students
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Boise, ID 83716
(208) 424-5000
Grades: PK-12
| 416 students
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
Grades: NS-10
| 36 students
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) 634-4024
Mccall, ID 83638
(208) 634-4024
Grades: 5-11
| 6 students
Po Box 2118
Sun Valley, ID 83353
(208) 622-3960
Sun Valley, ID 83353
(208) 622-3960
Grades: PK-12
| 446 students
Alzar School
Special Program Emphasis
1600 Airport Way
Cascade, ID 83611
(833) 862-5927
Cascade, ID 83611
(833) 862-5927
Grades: 10-11
| 42 students
3770 E Black Canyon Hwy
Emmett, ID 83617
(208) 365-3437
Emmett, ID 83617
(208) 365-3437
Grades: 6-9
| 40 students
3067 Mosquito Creek Rd
Clark Fork, ID 83811
(406) 847-4400
Clark Fork, ID 83811
(406) 847-4400
Grades: 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
Grades: PK-9
| 158 students
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
Grades: 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
Grades: 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
Grades: 7-12
| 20 students
Northwest Academy
Alternative School
139 Success Ln
Naples, ID 83847
(208) 267-7522
Naples, ID 83847
(208) 267-7522
Grades: 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
Grades: 3-12
| 53 students
Northwest Childrens Home Education Center
Special Education School
602 13th St
Lewiston, ID 83501
(208) 746-8206
Lewiston, ID 83501
(208) 746-8206
Grades: 1-12
| 55 students
Original Gangster's Academy
Alternative School
341 Creekside Place
Nampa, ID 83686
(208) 880-5655
Nampa, ID 83686
(208) 880-5655
Grades: 9-12
| 27 students
The Sage School
Alternative School
1451 Aviation Dr
Hailey, ID 83333
(208) 788-0120
Hailey, ID 83333
(208) 788-0120
Grades: 6-12
| 83 students
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