For the 2026 school year, there are 290 private schools belonging to membership associations in Oregon.
The most popular school membership associations are Association of Christian Schools International (ACSI) (19% of schools), Other school association(s) (17% of schools) and National Catholic Educational Association (NCEA) (17% of schools).
Top-Ranked Oregon Private Schools by Membership Association (2026)
Membership Association
# Schools
# Students
% Minority
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