The national average private school student size is 179 students (2026-27).
The state with the largest average private school student size is Louisiana with 314 students. The state with the smallest average private school student size is Wyoming with 67 students.
Source: National Center for Education Statistics (NCES) Private School Universe Survey (PSS), direct school submissions, and proprietary website research and analysis by Private School Review.
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Show school map— National(Student Size range: 67–314, avg 179)
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The state with largest average private school student size is Louisiana , with 314 students. The county with the largest average private school student size is Lynchburg City, VA with 685 students.