For the 2026 school year, there are 2,398 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 Private Schools by Membership Association (2026)
Membership Association
# Schools
# Students
% Minority
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