Private high schools in Montana (44)

By city

The 40 largest

School	City	Grades	Students	Per teacher	Affiliation
Billings Christian School	Billings	PreK-12	443	7.9	Christian (nondenominational)
St. Labre Schools	Ashland	PreK-12	422	5.1	Roman Catholic
Stillwater Christian School	Kalispell	PreK-12	380	10.7	Christian (nondenominational)
Butte Central Elementary School	Butte	PreK-12	372	13.3	Roman Catholic
Billings Central Catholic High School	Billings	3-12	344	4.9	Roman Catholic
Valley Christian School	Missoula	PreK-12	326	10.9	Christian (nondenominational)
Nelson Academy of Agricultural Sciences Online	Scobey	7-12	318	not reported	Nonsectarian
Manhattan Christian School	Manhattan	PreK-12	295	11.4	Christian (nondenominational)
Foothills Community Christian High School	Great Falls	PreK-12	212	11.8	Christian (nondenominational)
Helena Christian School	East Helena	PreK-12	203	13.7	Christian (nondenominational)
St. Andrew School	Helena	PreK-12	193	6.3	Roman Catholic
Loyola Sacred Heart High School	Missoula	9-12	143	8.5	Roman Catholic
Mission Valley Christian Academy	Polson	PreK-12	138	7.5	Christian (nondenominational)
Brightways Global Academy	Missoula	PreK-12	134	not reported	Nonsectarian
Butte Central Catholic High School	Butte	9-12	113	7.1	Roman Catholic
St. Labre High School	Ashland	9-12	112	6.2	Roman Catholic
Kootenai Valley Christian School	Libby	PreK-12	95	10	Christian (nondenominational)
Hamilton Christian Academy	Hamilton	K-12	87	12.8	Assembly of God
Yellowstone Academy	Billings	6-12	75	4.7	Nonsectarian
Acton Academy Hamilton and Curious Minds Montessor	Hamilton	PreK-9	74	10.6	Nonsectarian
Fairfield Mennonite School	Fairfield	PreK-10	74	14.8	Mennonite
Mount Ellis Academy	Bozeman	9-12	68	8.4	Seventh-Day Adventist
New Day	Billings	5-12	57	28.5	Nonsectarian
Great Falls Central Catholic High School	Great Falls	9-12	56	8.2	Roman Catholic
Divine Mercy Academy	Belgrade	PreK-12	55	5.5	Roman Catholic
Treasure State Academy	Great Falls	PreK-12	54	10.8	Baptist
Big Sky Discovery School	Big Sky	PreK-12	52	3.6	Nonsectarian
Clearview Horizon Inc / Clearview Girls Academy	Heron	7-12	47	6.6	Christian (nondenominational), all-girls
Aspire High School	Missoula	K-12	43	7	Nonsectarian
Turning Winds Academic Institute	Troy	9-12	40	11.8	Nonsectarian
Lustre Christian High School	Lustre	9-12	38	6.6	Mennonite
Cottonwood Day School	Bozeman	1-10	28	5.6	Nonsectarian
Aspire School	Missoula	6-12	28	4.1	Nonsectarian
North West Indian Bible School	Alberton	1-12	26	5.7	Methodist
Chrysalis School	Eureka	9-12	25	2.8	Nonsectarian, all-girls
Shodair Children's Hospital	Helena	7-11	15	5	Nonsectarian
Building Bridges Academy	Thompson Falls	9-12	15	10.7	Nonsectarian, all-boys
Oneschool Global Kalispell Campus	Kalispell	4-11	13	5	Nonsectarian
Rocky Mountain Education	Kalispell	4-11	13	4.3	Other religious
Pinehaven Christian Childrens Ranch and School	Saint Ignatius	1-12	12	2.7	Christian (nondenominational)

Other kinds of school in Montana

What Montana pays

MT

Montana Tax Credits for Contributions to Student Scholarship Organizations Tax-credit scholarship

Set by each scholarship organization EdChoice reports an average of $2,190 in 2022-23. By law a scholarship cannot exceed the state per-pupil average of total public school spending (MCA 15-30-3103).

Figures read from each program’s official pages, October 2, 2026. Sources and how to apply

Get one email when applications open

Most programs open once a year, and several ran out of money or seats in 2026. Pick your state and we will email you the day the next window opens, with the official link. That is the only email you get.

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