Chester County schools ranked by test score
Latest PSSA + Keystone year (2024-25). 23 schools in Chester County, Pennsylvania with reported Science scores. Pennsylvania state average: 50.6%.
| Rank | School | Level | Science | vs state |
|---|---|---|---|---|
| 1 | Downingtown STEM Academy Downingtown · Downingtown Area SD | High | 99.1% | +48.5pp |
| 2 | Unionville HS Kennett Square · Unionville-Chadds Ford SD | High | 81.3% | +30.7pp |
| 3 | Conestoga SHS Berwyn · Tredyffrin-Easttown SD | High | 79.0% | +28.4pp |
| 4 | Great Valley HS Malvern · Great Valley SD | High | 77.3% | +26.7pp |
| 5 | Downingtown HS West Campus Downingtown · Downingtown Area SD | High | 73.6% | +23.0pp |
| 6 | Avon Grove HS West Grove · Avon Grove SD | High | 67.6% | +17.0pp |
| 7 | Owen J Roberts HS Pottstown · Owen J Roberts SD | High | 67.2% | +16.6pp |
| 8 | Avon Grove CS West Grove · Avon Grove CS | Combined | 67.0% | +16.4pp |
| 9 | Downingtown HS East Campus Exton · Downingtown Area SD | High | 66.2% | +15.6pp |
| 10 | Renaissance Academy Charter School Phoenixville · Renaissance Academy CS | Combined | 66.2% | +15.6pp |
| 11 | Phoenixville Area HS Phoenixville · Phoenixville Area SD | High | 62.9% | +12.3pp |
| 12 | West Chester Henderson HS West Chester · West Chester Area SD | High | 58.4% | +7.8pp |
| 13 | West Chester East HS West Chester · West Chester Area SD | High | 58.0% | +7.4pp |
| 14 | Collegium CS Exton · Collegium CS | Combined | 53.3% | +2.7pp |
| 15 | Pennsylvania Leadership CS West Chester · Pennsylvania Leadership CS | Combined | 51.9% | +1.3pp |
| 16 | West Chester Bayard Rustin HS West Chester · West Chester Area SD | High | 51.0% | +0.4pp |
| 17 | Oxford Area High School Oxford · Oxford Area SD | High | 48.8% | -1.8pp |
| 18 | 21st Century Cyber CS West Chester · 21st Century Cyber CS | High | 48.4% | -2.2pp |
| 19 | Kennett High School Kennett Square · Kennett Consolidated SD | High | 45.4% | -5.2pp |
| 20 | Octorara Area JSHS Atglen · Octorara Area SD | High | 39.8% | -10.8pp |
| 21 | Coatesville Area SHS Coatesville · Coatesville Area SD | High | 21.2% | -29.4pp |
| 22 | Insight PA Cyber CS Exton · Insight PA Cyber CS | Combined | 17.2% | -33.4pp |
| 23 | Achievement House CS Exton · Achievement House CS | High | 14.6% | -36.0pp |
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 Science test (school year 2024-25). Only public schools in Chester 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.