Billings Christian School Photo - All School Picture of the Billings Christian School Warriors 2015/16 school year

Best Montana Private High Schools Belonging to Association of Christian Schools International (ACSI) (2025-26)

For the 2025-26 school year, there are 10 private high schools belonging to Association of Christian Schools International (ACSI) serving 2,295 students in Montana. You can also find more schools membership associations in Montana.
The top ranked private high schools belonging to Association of Christian Schools International (ACSI) in Montana include Foothills Community Christian High School, Stillwater Christian School, and Billings Christian School.
The average acceptance rate is 90%, which is lower than the Montana private high school average acceptance rate of 91%.
100% of private high schools belonging to Association of Christian Schools International (ACSI) in Montana are religiously affiliated (most commonly Christian and Assembly of God).

Top Ranked Private High Schools Belonging to Association of Christian Schools International (ACSI) in Montana (2025-26)

School
Location
Quick Facts
Billings Christian School
Billings Christian School Photo - All School Picture of the Billings Christian School Warriors 2015/16 school year
(Christian)
(1)
4519 Grand Ave
Billings, MT 59106
(406) 656-9484
Gr: PK-12 | 400 students Avg. class size: 18 students Sports: 5 | Extracurrculars: 8 Tuition & acceptance rate listed
2210 5th Ave North
Great Falls, MT 59401
(406) 452-5276
Gr: PK-12 | 201 students Avg. class size: 9 students Sports: 7 | Extracurrculars: 17 Tuition & acceptance rate listed
Helena Christian School
(Christian)
(5)
3384 Canyon Ferry Road
East Helena, MT 59635
(406) 442-3821
Gr: PK-12 | 249 students Avg. class size: 16 students Sports: 5 Tuition listed
Heritage Christian School
(Christian)
(1)
4310 Durston Road
Bozeman, MT 59718
(406) 587-9311
Gr: PK-12 | 252 students Avg. class size: 17 students Sports: 5 | Extracurrculars: 5 Tuition listed
Stillwater Christian School
Stillwater Christian School Photo - SCS Campus - High School and Middle School Building
(Christian)
255 FFA Dr
Kalispell, MT 59901
(406) 752-4400
Gr: PK-12 | 460 students Avg. class size: 20 students Sports: 6 | Extracurrculars: 4 Tuition listed
Valley Christian School
Valley Christian School Photo - High School Production of Beauty and The Beast.
(2)
2526 Sunset Lane
Missoula, MT 59804
(406) 549-0482
Gr: PK-12 | 357 students Avg. class size: 15 students Sports: 5 | Extracurrculars: 7 Tuition & acceptance rate listed
Hamilton Christian Academy
(Assembly of God)
601 W Main St
Hamilton, MT 59840
(406) 363-4534
Gr: K-12 | 89 students Avg. class size: 15 students Tuition & acceptance rate listed
Kootenai Valley Christian School
(Christian)
1024 Montana Ave
Libby, MT 59923
(406) 293-2303
Gr: PK-12 | 107 students Avg. class size: 13 students Tuition & acceptance rate listed
Lustre Christian High School
Lustre Christian High School Photo - Choir performing at the annual Christmas Program.
(Mennonite)
294 Lustre Rd
Frazer, MT 59225
(406) 392-5735
Gr: 9-12 | 32 students Avg. class size: 15 students
Mission Valley Christian Academy
Mission Valley Christian Academy Photo
(Christian)
(1)
38907 WWJD Lane
Polson, MT 59860
(406) 883-0706
Gr: PK-12 | 148 students Avg. class size: 12 students Sports: 4 Tuition & acceptance rate listed

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