For the 2026 school year, there are 2,403 private schools belonging to membership associations in California.
The most popular school membership associations are Western Association of Schools and Colleges (WASC) (29% of schools), National Catholic Educational Association (NCEA) (21% of schools) and Association of Christian Schools International (ACSI) (16% of schools).
Top-Ranked California 91黑料s by Membership Association (2026)
Membership Association
# Schools
# Students
% Minority
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