Delaware County schools ranked by test score
Latest PSSA + Keystone year (2024-25). 15 schools in Delaware County, Pennsylvania with reported Mathematics scores. Pennsylvania state average: 43.0%.
| Rank | School | Level | Mathematics | vs state |
|---|---|---|---|---|
| 1 | Radnor SHS Radnor · Radnor Township SD | High | 84.6% | +41.6pp |
| 2 | Springfield HS Springfield · Springfield SD | High | 79.9% | +36.9pp |
| 3 | Garnet Valley HS Glen Mills · Garnet Valley SD | High | 74.5% | +31.5pp |
| 4 | Haverford SHS Havertown · Haverford Township SD | High | 72.4% | +29.4pp |
| 5 | Strath Haven HS Wallingford · Wallingford-Swarthmore SD | High | 72.4% | +29.4pp |
| 6 | Penncrest HS Media · Rose Tree Media SD | High | 66.3% | +23.3pp |
| 7 | Marple Newtown SHS Newtown Square · Marple Newtown SD | High | 54.5% | +11.5pp |
| 8 | Ridley HS Folsom · Ridley SD | High | 49.7% | +6.7pp |
| 9 | Sun Valley HS Aston · Penn-Delco SD | High | 39.7% | -3.3pp |
| 10 | Chichester SHS Boothwyn · Chichester SD | High | 39.5% | -3.5pp |
| 11 | Interboro SHS Prospect Park · Interboro SD | High | 31.0% | -12.0pp |
| 12 | Upper Darby SHS Drexel Hill · Upper Darby SD | High | 19.0% | -24.0pp |
| 13 | Academy Park HS Sharon Hill · Southeast Delco SD | High | 18.6% | -24.4pp |
| 14 | Penn Wood HS Lansdowne · William Penn SD | High | 12.3% | -30.7pp |
| 15 | STEM at Showalter Chester · Chester-Upland SD | High | 9.1% | -33.9pp |
About this ranking
Schools are ranked by the percentage of students who scored at or above the PSSA + Keystone % Proficient or Advanced threshold on the latest available PSSA + Keystone Mathematics test (school year 2024-25). Only public schools in Delaware County, Pennsylvania with a reasonable cohort size are shown. A higher percentage is better.
The comparison column shows the gap to the Pennsylvania statewide enrollment-weighted average. To compare against neighboring counties, use the full Pennsylvania ranking.