The highest-performing public high schools by test proficiency in Delaware County, Pennsylvania
14 public high schools in Delaware County, Pennsylvania appear in this ranking of the highest-performing public high schools by test proficiency, ranked by composite state-assessment proficiency. Radnor SHS leads the list at 84.5%, against a median of 56.3% across the ranked schools.
Sort any column, filter to a school or district, or download the full ranking as a CSV. Source data is federal NCES and state assessment reporting, 2024-25.
| # | School | City | % Proficient |
|---|---|---|---|
| 1 | Radnor SHS | Radnor, PA | 84.5% |
| 2 | Springfield HS | Springfield, PA | 82.3% |
| 3 | Garnet Valley HS | Glen Mills, PA | 80.0% |
| 4 | Haverford SHS | Havertown, PA | 79.6% |
| 5 | Penncrest HS | Media, PA | 77.1% |
| 6 | Strath Haven HS | Wallingford, PA | 77.0% |
| 7 | Marple Newtown SHS | Newtown Square, PA | 60.9% |
| 8 | Ridley HS | Folsom, PA | 51.7% |
| 9 | Sun Valley HS | Aston, PA | 51.6% |
| 10 | Interboro SHS | Prospect Park, PA | 46.3% |
| 11 | Chichester SHS | Boothwyn, PA | 42.0% |
| 12 | Upper Darby SHS | Drexel Hill, PA | 30.6% |
| 13 | Penn Wood HS | Lansdowne, PA | 21.9% |
| 14 | STEM at Showalter | Chester, PA | 18.0% |
All schools in Delaware County →
Highest proficiency rankings at a wider scope
Other rankings for Delaware County, Pennsylvania
allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.