Chester County schools ranked by test score
Latest PSSA + Keystone year (2024-25). 99 schools in Chester County, Pennsylvania with reported Mathematics scores. Pennsylvania state average: 43.0%.
| Rank | School | Level | Mathematics | vs state |
|---|---|---|---|---|
| 1 | Downingtown STEM Academy Downingtown · Downingtown Area SD | High | 98.7% | +55.7pp |
| 2 | Pickering Valley El Sch Chester Springs · Downingtown Area SD | Elementary | 88.2% | +45.2pp |
| 3 | Hillendale El Sch Chadds Ford · Unionville-Chadds Ford SD | Elementary | 88.0% | +45.0pp |
| 4 | Brandywine-Wallace El Sch Downingtown · Downingtown Area SD | Elementary | 87.0% | +44.0pp |
| 5 | West Vincent El Sch Chester Springs · Owen J Roberts SD | Elementary | 86.9% | +43.9pp |
| 6 | Shamona Creek El Sch Downingtown · Downingtown Area SD | Elementary | 86.3% | +43.3pp |
| 7 | New Eagle El Sch Wayne · Tredyffrin-Easttown SD | Elementary | 85.9% | +42.9pp |
| 8 | Uwchlan Hills El Sch Downingtown · Downingtown Area SD | Elementary | 84.3% | +41.3pp |
| 9 | West Bradford El Sch Downingtown · Downingtown Area SD | Elementary | 83.2% | +40.2pp |
| 10 | Pocopson El Sch West Chester · Unionville-Chadds Ford SD | Elementary | 81.5% | +38.5pp |
| 11 | Lionville El Sch Downingtown · Downingtown Area SD | Elementary | 81.4% | +38.4pp |
| 12 | Hillside El Sch Berwyn · Tredyffrin-Easttown SD | Elementary | 81.0% | +38.0pp |
| 13 | Devon El Sch Devon · Tredyffrin-Easttown SD | Elementary | 80.6% | +37.6pp |
| 14 | Valley Forge El Sch Wayne · Tredyffrin-Easttown SD | Elementary | 79.7% | +36.7pp |
| 15 | Conestoga SHS Berwyn · Tredyffrin-Easttown SD | High | 79.5% | +36.5pp |
| 16 | Beaumont El Sch Devon · Tredyffrin-Easttown SD | Elementary | 77.0% | +34.0pp |
| 17 | Beaver Creek El Sch Downingtown · Downingtown Area SD | Elementary | 76.9% | +33.9pp |
| 18 | Chadds Ford El Sch Chadds Ford · Unionville-Chadds Ford SD | Elementary | 76.9% | +33.9pp |
| 19 | East Coventry El Sch Pottstown · Owen J Roberts SD | Elementary | 75.0% | +32.0pp |
| 20 | East Goshen El Sch West Chester · West Chester Area SD | Elementary | 74.9% | +31.9pp |
| 21 | Unionville HS Kennett Square · Unionville-Chadds Ford SD | High | 74.8% | +31.8pp |
| 22 | Bradford Hgts El Sch Downingtown · Downingtown Area SD | Elementary | 74.2% | +31.2pp |
| 23 | General Wayne El Sch Malvern · Great Valley SD | Elementary | 74.1% | +31.1pp |
| 24 | East Bradford El Sch West Chester · West Chester Area SD | Elementary | 73.1% | +30.1pp |
| 25 | Charlestown El Sch Malvern · Great Valley SD | Elementary | 72.8% | +29.8pp |
| 26 | Exton El Sch Exton · West Chester Area SD | Elementary | 72.7% | +29.7pp |
| 27 | Spring City El Sch Spring City · Spring-Ford Area SD | Elementary | 72.1% | +29.1pp |
| 28 | Westtown-Thornbury El Sch West Chester · West Chester Area SD | Elementary | 72.1% | +29.1pp |
| 29 | Springton Manor El Sch Glenmoore · Downingtown Area SD | Elementary | 72.0% | +29.0pp |
| 30 | Kathryn D. Markley El Sch Malvern · Great Valley SD | Elementary | 71.1% | +28.1pp |
| 31 | Mary C Howse El Sch West Chester · West Chester Area SD | Elementary | 70.5% | +27.5pp |
| 32 | Downingtown HS West Campus Downingtown · Downingtown Area SD | High | 70.0% | +27.0pp |
| 33 | Valley Forge MS Wayne · Tredyffrin-Easttown SD | Middle | 69.7% | +26.7pp |
| 34 | Tredyffrin-Easttown MS Berwyn · Tredyffrin-Easttown SD | Middle | 69.4% | +26.4pp |
| 35 | Sarah W Starkweather El Sch West Chester · West Chester Area SD | Elementary | 69.2% | +26.2pp |
| 36 | Unionville El Sch Kennett Square · Unionville-Chadds Ford SD | Elementary | 68.5% | +25.5pp |
| 37 | East Ward El Sch Downingtown · Downingtown Area SD | Elementary | 68.3% | +25.3pp |
| 38 | Manavon El Sch Phoenixville · Phoenixville Area SD | Elementary | 68.3% | +25.3pp |
| 39 | Downingtown HS East Campus Exton · Downingtown Area SD | High | 68.1% | +25.1pp |
| 40 | Charles F Patton MS Kennett Square · Unionville-Chadds Ford SD | Middle | 68.0% | +25.0pp |
| 41 | Glen Acres El Sch West Chester · West Chester Area SD | Elementary | 67.9% | +24.9pp |
| 42 | French Creek El Sch Pottstown · Owen J Roberts SD | Elementary | 67.8% | +24.8pp |
| 43 | Greystone El Sch West Chester · West Chester Area SD | Elementary | 67.5% | +24.5pp |
| 44 | Honey Brook El Ctr Honey Brook · Twin Valley SD | Elementary | 67.0% | +24.0pp |
| 45 | East Vincent El Sch Spring City · Owen J Roberts SD | Elementary | 66.9% | +23.9pp |
| 46 | Great Valley HS Malvern · Great Valley SD | High | 66.9% | +23.9pp |
| 47 | Penn Wood El Sch West Chester · West Chester Area SD | Elementary | 66.5% | +23.5pp |
| 48 | Marsh Creek Sixth Grade Center Downingtown · Downingtown Area SD | Middle | 66.3% | +23.3pp |
| 49 | Twin Valley El Ctr Elverson · Twin Valley SD | Elementary | 66.3% | +23.3pp |
| 50 | Avon Grove HS West Grove · Avon Grove SD | High | 64.9% | +21.9pp |
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 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.