Castlehill Country Day School Photo - Spaced Out! K-2nd school show!

Best Arizona Private Schools Belonging to Membership Associations (2026)

For the 2026 school year, there are 282 private schools belonging to membership associations in Arizona.
The most popular school membership associations are Association of Christian Schools International (ACSI) (21% of schools), National Catholic Educational Association (NCEA) (20% of schools) and Other school association(s) (13% of schools).

Top-Ranked Arizona Private Schools by Membership Association (2026)

Membership Association
# Schools
# Students
% Minority
34
11,400
22%

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