The average private high school in Montana has 129 students (2025-26).
The largest private high school in Montana is Billings Catholic Schools with 1,116 students.
School Size Range: 34
1,116
Avg. School Size: 170
Largest Montana Private High Schools (2025-26)
School
# Students
Grades
Location
Rank: #11.
Billings Catholic Schools![Billings Catholic Schools Photo]( "Billings Catholic Schools Photo")
(Catholic)
Students: 1,116
Grades: PK-12
3 Broadwater Ave
Billings, MT 59101
(406) 867-8043
Billings, MT 59101
(406) 867-8043
Rank: #22.
Stillwater Christian School![Stillwater Christian School Photo - SCS Campus - High School and Middle School Building]( "Stillwater Christian School Photo - SCS Campus - High School and Middle School Building")
(Christian)
Students: 460
Grades: PK-12
255 FFA Dr
Kalispell, MT 59901
(406) 752-4400
Kalispell, MT 59901
(406) 752-4400
Rank: #33.
Students: 400
Grades: PK-12
4519 Grand Ave
Billings, MT 59106
(406) 656-9484
Billings, MT 59106
(406) 656-9484
Rank: #44.
Students: 357
Grades: PK-12
2526 Sunset Lane
Missoula, MT 59804
(406) 549-0482
Missoula, MT 59804
(406) 549-0482
Rank: #55.
Manhattan Christian School![Manhattan Christian School Photo]( "Manhattan Christian School Photo")
(Calvinist)
Students: 321
Grades: PK-12
8000 Churchill Rd
Manhattan, MT 59741
(406) 282-7261
Manhattan, MT 59741
(406) 282-7261
Rank: #66.
Students: 252
Grades: PK-12
4310 Durston Road
Bozeman, MT 59718
(406) 587-9311
Bozeman, MT 59718
(406) 587-9311
Rank: #77.
Students: 249
Grades: PK-12
3384 Canyon Ferry Road
East Helena, MT 59635
(406) 442-3821
East Helena, MT 59635
(406) 442-3821
Rank: #88.
St. Labre High School
(Catholic)
Students: 208
Grades: 9-12
Mission Rd
Ashland, MT 59003
(406) 784-4561
Ashland, MT 59003
(406) 784-4561
Rank: #99.
Foothills Community Christian High School
(Christian)
Students: 201
Grades: PK-12
2210 5th Ave North
Great Falls, MT 59401
(406) 452-5276
Great Falls, MT 59401
(406) 452-5276
Rank: #1010.
Emerge Private School
Alternative School (Christian)
Students: 195
Grades: 1-12
1701 S 19th Ave
Bozeman, MT 59718
(406) 404-0122
Bozeman, MT 59718
(406) 404-0122
Rank: #1111.
Nelson Academy Of Agricultural Sciences Online
Vocational/Technical School
Students: 193
Grades: 7-12
306 1st Ave W
Scobey, MT 59263
(406) 783-8552
Scobey, MT 59263
(406) 783-8552
Rank: #1212.
Loyola Sacred Heart High School
(Catholic)
Students: 181
Grades: 9-12
320 Edith St
Missoula, MT 59801
(406) 549-6101
Missoula, MT 59801
(406) 549-6101
Rank: #13 - 1413. - 14.
Petra Academy
(Christian)
Students: 174
Grades: PK-12
4720 Classical Way
Bozeman, MT 59718
(406) 582-8165
Bozeman, MT 59718
(406) 582-8165
Rank: #13 - 1413. - 14.
St. Andrew School
(Catholic)
Students: 174
Grades: K-12
1900 Flowerree St.
Helena, MT 59601
(406) 449-3201
Helena, MT 59601
(406) 449-3201
Rank: #1515.
Students: 148
Grades: PK-12
38907 WWJD Lane
Polson, MT 59860
(406) 883-0706
Polson, MT 59860
(406) 883-0706
Rank: #1616.
Students: 146
Grades: 7-12
58020 US-93
Pablo, MT 59855
(406) 675-0292
Pablo, MT 59855
(406) 675-0292
Rank: #1717.
Students: 133
Grades: K-12
3700 S Russell St
Missoula, MT 59801
(406) 542-3334
Missoula, MT 59801
(406) 542-3334
Rank: #1818.
Kootenai Valley Christian School
(Christian)
Students: 107
Grades: PK-12
1024 Montana Ave
Libby, MT 59923
(406) 293-2303
Libby, MT 59923
(406) 293-2303
Rank: #1919.
Butte Central Catholic High School
(Catholic)
Students: 97
Grades: 9-12
9 S Idaho St
Butte, MT 59701
(406) 782-6761
Butte, MT 59701
(406) 782-6761
Rank: #2020.
Hamilton Christian Academy
(Assembly of God)
Students: 89
Grades: K-12
601 W Main St
Hamilton, MT 59840
(406) 363-4534
Hamilton, MT 59840
(406) 363-4534
Rank: #2121.
Yellowstone Academy
Special Education School
Students: 70
Grades: 9-12
1750 Ray Of Hope Ln
Billings, MT 59106
(406) 656-2198
Billings, MT 59106
(406) 656-2198
Rank: #2222.
Great Falls Central Catholic High School![Great Falls Central Catholic High School Photo]( "Great Falls Central Catholic High School Photo")
(Catholic)
Students: 69
Grades: 9-12
2800 18th Ave S
Great Falls, MT 59405
(406) 216-3344
Great Falls, MT 59405
(406) 216-3344
Rank: #23 - 2423. - 24.
Big Sky Discovery School
Montessori School
Students: 59
Grades: PK-12
175 Aspen Leaf Dr
Big Sky, MT 59716
(406) 580-9982
Big Sky, MT 59716
(406) 580-9982
Rank: #23 - 2423. - 24.
Mount Ellis Academy![Mount Ellis Academy Photo - Mount Ellis Academy has existed in the beautiful Gallatin Valley since 1902.]( "Mount Ellis Academy Photo - Mount Ellis Academy has existed in the beautiful Gallatin Valley since 1902.")
(Seventh Day Adventist)
Students: 59
Grades: 9-12
3641 Bozeman Trail Rd
Bozeman, MT 59715
(406) 587-5178
Bozeman, MT 59715
(406) 587-5178
Rank: #2525.
Treasure State Academy![Treasure State Academy Photo]( "Treasure State Academy Photo")
Alternative School (Baptist)
Students: 56
Grades: PK-12
100 46th Street N
Great Falls, MT 59405
(406) 727-5133
Great Falls, MT 59405
(406) 727-5133
Rank: #2626.
New Day School
Alternative School
Students: 51
Grades: 5-12
Po Box 30282
Billings, MT 59107
(406) 254-2340
Billings, MT 59107
(406) 254-2340
Rank: #2727.
Students: 49
Grades: K-12
1001 Cleveland Street
Missoula, MT 59801
(406) 721-6884
Missoula, MT 59801
(406) 721-6884
Rank: #2828.
New Day
Special Education School
Students: 46
Grades: 4-12
1724 Lampman Dr
Billings, MT 59102
(406) 869-0772
Billings, MT 59102
(406) 869-0772
Rank: #29 - 3029. - 30.
Pinehaven Christian Childrens Ranch And School
Alternative School (Christian)
Students: 45
Grades: K-12
410 St Marys Dr
Saint Ignatius, MT 59865
(406) 745-4545
Saint Ignatius, MT 59865
(406) 745-4545
Rank: #29 - 3029. - 30.
Shodair Children's Hospital
Alternative School
Students: 45
Grades: K-12
2755 Colonial Dr
Helena, MT 59601
(406) 444-7564
Helena, MT 59601
(406) 444-7564
Rank: #3131.
Students: 44
Grades: 8-12
77 Trails End Rd
Eureka, MT 59917
(406) 889-5577
Eureka, MT 59917
(406) 889-5577
Rank: #3232.
Whispering Pines School
(Amish)
Students: 43
Grades: K-9
180 Bender Rd
Roundup, MT 59072
(406) 323-8098
Roundup, MT 59072
(406) 323-8098
Rank: #3333.
First Lutheran Classical School
Alternative School (Lutheran Church Missouri Synod)
Students: 42
Grades: PK-9
2808 S Ave W
Missoula, MT 59804
(406) 549-3311
Missoula, MT 59804
(406) 549-3311
Rank: #3434.
Students: 40
Grades: 8-12
31733 S Fork Yaak Rd
Troy, MT 59935
(406) 295-5400
Troy, MT 59935
(406) 295-5400
Rank: #3535.
Summit Preparatory School
Alternative School
Students: 34
Grades: 9-12
1605 Danielson Rd
Kalispell, MT 59901
(406) 758-8100
Kalispell, MT 59901
(406) 758-8100
Show 13 more private schools in MT (out of 48 total schools)
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Frequently Asked Questions
What is the Montana average private high schools student size?
The Montana average private high schools student size is 129 for 2025-26.
What are the private high schools with the largest student size in Montana?
The top ranked private high schools in Montana include Billings Catholic Schools, Stillwater Christian School and Billings Christian School.
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