#25 Most Diverse Private Schools in Idaho
Grace Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–12
Largest group: 80% of students
Pocatello, ID
A+Overall grade430 students9 students per teacher
2026 lists
Most Diverse Private Schools in Idaho
Private schools in Idaho with the most varied mix of students. Top 50 of 60 schools.
#26 Most Diverse Private Schools in Idaho
St. Mary's Parish School
Parish school · Grades Pre-K–8
Largest group: 80% of students
Moscow, ID
AOverall grade84 students9 students per teacher
#27 Most Diverse Private Schools in Idaho
Joshua Institute Academy
Special education school · Grades 3–12
Largest group: 80% of students
Meridian, ID
BOverall grade56 students8 students per teacher
#28 Most Diverse Private Schools in Idaho
St. Joseph's Catholic School
Diocesan school · Grades K–8
Largest group: 82% of students
Boise, ID
B+Overall grade367 students15 students per teacher
#29 Most Diverse Private Schools in Idaho
Lighthouse Christian School
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 82% of students
Twin Falls, ID
B-Overall grade305 students15 students per teacher
#30 Most Diverse Private Schools in Idaho
Sun Valley Community School
Independent school · Grades Pre-K–12
Largest group: 84% of students
Sun Valley, ID
B+Overall grade391 students7 students per teacher
#31 Most Diverse Private Schools in Idaho
Sun Valley Community School-Middle
Independent school · Grades Pre-K–12
Largest group: 85% of students
Sun Valley, ID
B+Overall grade397 students8 students per teacher
#32 Most Diverse Private Schools in Idaho
Holy Family Catholic School
Diocesan school · Grades Pre-K–8
Largest group: 85% of students
Coeur d'Alene, ID
AOverall grade241 students14 students per teacher
#33 Most Diverse Private Schools in Idaho
Calvary Christian School
Christian school (nondenominational) · Grades Pre-K–8
Largest group: 85% of students
Boise, ID
BOverall grade223 students13 students per teacher
#34 Most Diverse Private Schools in Idaho
Boise Valley Adventist School
Seventh-day Adventist school · Grades Pre-K–8
Largest group: 85% of students
Boise, ID
BOverall grade75 students13 students per teacher
#35 Most Diverse Private Schools in Idaho
All Saints Catholic School
Diocesan school · Grades Pre-K–8
Largest group: 86% of students
Lewiston, ID
B-Overall grade216 students18 students per teacher
#36 Most Diverse Private Schools in Idaho
Sun Valley Community School-Upper
Independent school · Grades Pre-K–12
Largest group: 87% of students
Sun Valley, ID
A+Overall grade397 students5 students per teacher
#37 Most Diverse Private Schools in Idaho
Immaculate Conception Academy
Independent Catholic school · Grades K–12
Largest group: 87% of students
Post Falls, ID
BOverall gradeAll boys188 students10 students per teacher
#38 Most Diverse Private Schools in Idaho
Pioneer Montessori School
Montessori school · Grades Pre-K–6
Largest group: 87% of students
Ketchum, ID
BOverall grade104 students13 students per teacher
#39 Most Diverse Private Schools in Idaho
Immanuel Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–5
Largest group: 89% of students
Twin Falls, ID
B-Overall grade186 students17 students per teacher
#40 Most Diverse Private Schools in Idaho
Calvary Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 89% of students
Emmett, ID
A-Overall grade123 students8 students per teacher
#41 Most Diverse Private Schools in Idaho
The Sage School
Alternative school · Grades 6–12
Largest group: 89% of students
Hailey, ID
A-Overall grade91 students7 students per teacher
#42 Most Diverse Private Schools in Idaho
Cornerstone Christian School
Christian school (nondenominational) · Grades K–8
Largest group: 90% of students
Lewiston, ID
B+Overall grade107 students10 students per teacher
#43 Most Diverse Private Schools in Idaho
Genesis Preparatory Academy
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 91% of students
Post Falls, ID
B-Overall grade541 students16 students per teacher
#44 Most Diverse Private Schools in Idaho
Sacred Heart Catholic School
Diocesan school · Grades Pre-K–8
Largest group: 91% of students
Boise, ID
BOverall grade195 students15 students per teacher
#45 Most Diverse Private Schools in Idaho
Genesis Prep Academy
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 92% of students
Post Falls, ID
BOverall grade466 students11 students per teacher
#46 Most Diverse Private Schools in Idaho
Canyonside Christian School
Christian school (nondenominational) · Grades Pre-K–6
Largest group: 92% of students
Jerome, ID
AOverall grade65 students6 students per teacher
#47 Most Diverse Private Schools in Idaho
Montessori Academy
Montessori school · Grades Pre-K–6
Largest group: 92% of students
Eagle, ID
B+Overall grade62 students10 students per teacher
#48 Most Diverse Private Schools in Idaho
Cole Valley Christian Schools-Secondary
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 93% of students
Meridian, ID
B-Overall grade1,263 students16 students per teacher
From official public records, updated October 2026.