For the 2026 school year, there are 81 private schools belonging to membership associations in Montana.
The most popular school membership associations are National Catholic Educational Association (NCEA) (19% of schools), Association of Christian Schools International (ACSI) (15% of schools) and American Montessori Society (AMS) (14% of schools).
Top-Ranked Montana Private Schools by Membership Association (2026)
Membership Association
# Schools
# Students
% Minority
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