#1 Largest Private Schools in Missoula, MT
Valley Christian School
Christian school (nondenominational) · Grades Pre-K–12
326 students
Missoula, MT
BOverall grade326 students11 students per teacher
2026 lists
Largest Private Schools in Missoula, MT
The private schools in Missoula, MT with the most students. Top 9 of 9 schools.
#2 Largest Private Schools in Missoula, MT
St. Joseph School
Diocesan school · Grades Pre-K–8
283 students
Missoula, MT
B+Overall grade283 students12 students per teacher
#3 Largest Private Schools in Missoula, MT
Missoula International School
Independent school · Grades Pre-K–8
150 students
Missoula, MT
B+Overall grade150 students9 students per teacher
#4 Largest Private Schools in Missoula, MT
Loyola Sacred Heart High School
Diocesan school · Grades 9–12
143 students
Missoula, MT
A+Overall grade143 students9 students per teacher
#5 Largest Private Schools in Missoula, MT
Brightways Global Academy
Alternative school · Grades Pre-K–12
134 students
Missoula, MT
B-Overall grade134 students
#6 Largest Private Schools in Missoula, MT
Sussex School
Independent school · Grades K–8
125 students
Missoula, MT
B+Overall grade125 students8 students per teacher
#7 Largest Private Schools in Missoula, MT
Aspire High School
Independent school · Grades K–12
43 students
Missoula, MT
B+Overall grade43 students7 students per teacher
#8 Largest Private Schools in Missoula, MT
Aspire School
Independent school · Grades 6–12
28 students
Missoula, MT
AOverall grade28 students4 students per teacher
#9 Largest Private Schools in Missoula, MT
Missoula Christian Montessori
Greek Orthodox · Montessori · Grades Pre-K–6
24 students
Missoula, MT
A-Overall grade24 students4 students per teacher
From official public records, updated October 2026.