#25 Largest Private Schools in Montana
Whitefish Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
116 students
Whitefish, MT
AOverall grade116 students7 students per teacher
2026 lists
Largest Private Schools in Montana
The private schools in Montana with the most students. Top 50 of 77 schools.
#26 Largest Private Schools in Montana
St. Jude Thaddeus School
Parish school · Grades Pre-K–8
113 students
Havre, MT
B+Overall grade113 students11 students per teacher
#27 Largest Private Schools in Montana
Butte Central Catholic High School
Independent Catholic school · Grades 9–12
113 students
Butte, MT
A+Overall grade113 students7 students per teacher
#28 Largest Private Schools in Montana
St. Labre High School
Diocesan school · Grades 9–12
112 students
Ashland, MT
A-Overall grade112 students6 students per teacher
#29 Largest Private Schools in Montana
St. Marys Catholic School
Parish school · Grades Pre-K–8
101 students
Livingston, MT
A+Overall grade101 students7 students per teacher
#30 Largest Private Schools in Montana
Pretty Eagle Cthlc SCHL
Independent Catholic school · Grades Pre-K–8
100 students
Saint Xavier, MT
BOverall grade100 students9 students per teacher
#31 Largest Private Schools in Montana
Kootenai Valley Christian School
Christian school (nondenominational) · Grades Pre-K–12
95 students
Libby, MT
B+Overall grade95 students10 students per teacher
#32 Largest Private Schools in Montana
Grace Montessori Academy
Christian (nondenominational) · Montessori · Grades Pre-K–8
91 students
Billings, MT
BOverall grade91 students9 students per teacher
#33 Largest Private Schools in Montana
Kalispell Montessori Center
Montessori school · Grades 1–6
91 students
Kalispell, MT
BOverall grade91 students9 students per teacher
#34 Largest Private Schools in Montana
Hamilton Christian Academy
Assembly of God school · Grades K–12
87 students
Hamilton, MT
BOverall grade87 students13 students per teacher
#35 Largest Private Schools in Montana
Headwaters Academy
Alternative school · Grades 6–8
84 students
Bozeman, MT
A-Overall grade84 students7 students per teacher
#36 Largest Private Schools in Montana
Pines Academy
Christian school (nondenominational) · Grades K–8
80 students
Pinesdale, MT
AOverall grade80 students6 students per teacher
#37 Largest Private Schools in Montana
Yellowstone Academy
Special education school · Grades 6–12
75 students
Billings, MT
AOverall grade75 students5 students per teacher
#38 Largest Private Schools in Montana
Fairfield Mennonite School
Mennonite school · Grades Pre-K–10
74 students
Fairfield, MT
B+Overall grade74 students15 students per teacher
#39 Largest Private Schools in Montana
Acton Academy Hamilton and Curious Minds Montessor
Independent school · Grades Pre-K–9
74 students
Hamilton, MT
BOverall grade74 students11 students per teacher
#40 Largest Private Schools in Montana
Middle Creek Montessori
Montessori school · Grades Pre-K–6
72 students
Bozeman, MT
AOverall grade72 students5 students per teacher
#41 Largest Private Schools in Montana
St. Charles Mission School
Independent Catholic school · Grades Pre-K–8
70 students
Pryor, MT
AOverall grade70 students8 students per teacher
#42 Largest Private Schools in Montana
Mount Ellis Academy
Seventh-day Adventist school · Grades 9–12
68 students
Bozeman, MT
AOverall grade68 students8 students per teacher
#43 Largest Private Schools in Montana
Mt. Ellis Elementary
Seventh-day Adventist school · Grades Pre-K–8
65 students
Bozeman, MT
B+Overall grade65 students12 students per teacher
#44 Largest Private Schools in Montana
St. Labre Catholic Elementary School
Independent Catholic school · Grades Pre-K–4
61 students
Ashland, MT
A-Overall grade61 students6 students per teacher
#45 Largest Private Schools in Montana
De La Salle Blackfeet School
Independent Catholic school · Grades 4–8
60 students
Browning, MT
AOverall grade60 students7 students per teacher
#46 Largest Private Schools in Montana
New Day
Independent school · Grades 5–12
57 students
Billings, MT
B+Overall grade57 students29 students per teacher
#47 Largest Private Schools in Montana
Great Falls Central Catholic High School
Diocesan school · Grades 9–12
56 students
Great Falls, MT
A+Overall grade56 students8 students per teacher
#48 Largest Private Schools in Montana
Divine Mercy Academy
Independent Catholic school · Grades Pre-K–12
55 students
Belgrade, MT
AOverall grade55 students6 students per teacher
From official public records, updated October 2026.