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For the 2026 school year, there are 5 private high schools belonging to Association of Delaware Valley Independent Schools serving 1,546 students in Pennsylvania. You can also find more schools membership associations in Pennsylvania.

The top-ranked private high schools belonging to Association of Delaware Valley Independent Schools in Pennsylvania include The Grayson School, Upland Country Day School, and York Country Day School.

The average acceptance rate is 66%, which is lower than the Pennsylvania private high school average acceptance rate of 78%.

20% of private high schools belonging to Association of Delaware Valley Independent Schools in Pennsylvania are religiously affiliated (most commonly Other).