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Conestoga SHS
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedBeatsExpectations
Demographically-adjusted score · methodology7-year change
SY 2017-18 vs SY 2024-25About Conestoga SHS
Conestoga SHS, a well-populated high school in Berwyn, Pennsylvania, operated by Tredyffrin-Easttown SD, works with 2,264 students, covering grades 9 through 12. Compared to the state average of about 738 students per school, that is 207% above typical.
Tredyffrin-Easttown SD comprises 8 schools with combined enrollment of 6,815 students; Conestoga SHS is among them.
In terms of who attends, Conestoga SHS shows that White students make up the majority at 55%. The remainder breaks down as 30% Asian, 6% Hispanic, 6% multiracial, 3% Black. The wider county runs roughly 77% White, putting the school's mix visibly less White than the area baseline.
In terms of school funding signals, Staff filings list 154 full-time-equivalent teachers, which works out to roughly 14.7:1 students per teacher. The state averages around 12.8:1, so this campus is higher than the state norm typical. Around 11% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment. By comparison, Chester County runs at roughly 38%, so the school's eligibility rate is somewhat below the surrounding baseline.
On a residual basis (actual vs predicted given the student mix), Conestoga SHS performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 73.1%, the actual is 80.4%, a residual of +7.3 points.
In the area at large, the surrounding county (Chester County) records that the typical household earns roughly $127,208 per year, roughly 57% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Conestoga SHS is one of 111 public schools in Chester County (combined enrollment of about 83,468 students).
The closest other public school is Tredyffrin-Easttown MS, roughly 0.3 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 8 schools in that immediate cluster with test data (this one included), Conestoga SHS ranks 4th on composite proficiency, ahead of the local average of 80.1%.
Geographically, the school is in a commuter-belt area.
Looking at the recent track record. Over the past 7-year window, the student count expanded 3%: 2,197 students in 2018 compared to 2,264 in 2025. The White share of enrollment edged down from 73% to 55% over that span. Class-load math has narrowed: from 16.5:1 in 2018 to 14.7:1 in 2025.
Within the allk12 community for this school, the feed for Conestoga SHS typically covers science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.
Chester County at a glance
View full county profileQuick facts
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