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Collegium CS
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedWhat this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 34 of every 100 students at this school read and write at grade level and about 19 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are down about 4 points since 2023, while math scores are down about 3 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 35% of students here test proficient in math and reading, compared with the roughly 35% typical for Pennsylvania schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Pennsylvania's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Collegium CS
Collegium CS is a reasonably sized unified-grade school in Exton, Pennsylvania, overseen by Collegium CS. The school educates 2,634 students in grades K through 12. Compared to the state average of about 1,819 students per school, that is 45% bigger than typical.
Collegium CS is a school of Collegium CS, the district that handles curriculum, staffing, and budget for the campus.
On demographics, Collegium CS lists that 31% of students identify as Hispanic, with the remaining enrollment distributed across several groups; the rest is composed of 30% White, 27% Black, 8% Asian, 4% multiracial. The wider county runs roughly 8% Hispanic, putting the school's mix noticeably more Hispanic than the area baseline.
Looking at school resources, Staff filings list 270 full-time-equivalent teachers, which works out to roughly 9.8:1 students per teacher. The state averages around 15.5:1, so this campus is tighter than the state norm typical. Around 99% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator. That share is above Chester County's rate of about 38%.
On a residual basis (actual vs predicted given the student mix), Collegium CS sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 35.1%; this one delivers 34.5%.
Across the wider county, the surrounding county (Chester County) records that median household earnings sit near $127,208, roughly 57% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. In all, Chester County runs 111 public schools (combined enrollment of about 83,468 students), of which Collegium CS is one.
Nearest neighbor: Uwchlan Hills El Sch, around 1.4 miles off. Counting just inside five miles, 8 other public schools cluster around Collegium CS. Ranking that nearby cluster on reported proficiency puts Collegium CS at 8th of 8; the average score across the group is 74.6%.
Geographically, the school is in a commuter-belt area. Collegium CS operates as a public charter school, meaning it is publicly funded but governed independently of the surrounding district's traditional schools.
Looking at the recent track record. Looking back 7 years, enrollment at Collegium CS has decreased 9%, going from 2,887 students in 2018 to 2,634 in 2025. The White share of enrollment shrank from 47% to 30% over that span. Class-load math has pulled in: from 12.1:1 in 2018 to 9.8:1 in 2025.
Inside the community feed, recent activity here tends to focus on 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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