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SCHOOL COMMUNITY·COLLEGIUM CS·NCES 420005000485

Collegium CS

456 Creamery Way, Exton, PA 19341 · (610) 903-1300 · Chester County
GRADES KG–12COMBINED21-SUBURBCHARTERTITLE IREGULAR SCHOOL2,634 STUDENTS
B+
allk12 Grade
Scored higher than 66% of Pennsylvania public K-12 schools
  • BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • A-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Pennsylvania public K-12 schools

Enrollment
2,634
Combined
STATE 1,819
Student : Teacher
9.8:1
270 FTE teachers
STATE 15.5:1
Free / Reduced Lunch
99%
2,610 students
STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other combined schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten28411%
Grade 11927%
Grade 21998%
Grade 31887%
Grade 42188%
Grade 52369%
Grade 62279%
Grade 72218%
Grade 82339%
Grade 92018%
Grade 101656%
Grade 111466%
Grade 121245%

This year's kindergarten class (284) is 22% larger than its 8th grade class (233).

Student demographics
74%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 59% · US 70%
White
78030%
STATE 60% · US 43%
Hispanic
80931%
STATE 16% · US 30%
Black
71627%
STATE 14% · US 15%
Asian
2218%
STATE 5% · US 6%
Two+
974%
STATE 5% · US 5%
Native American
60%
STATE 0% · US 1%
Pacific Islander
50%
STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1,34351%
Female
1,29149%

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Test scores

PSSA + Keystone 2024-25 . % Proficient or Advanced
English Language Arts
33.8%
PA avg 51.1% . -4.3pp since 2023
Math
19.4%
PA avg 43.0% . -2.7pp since 2023

What 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.

PSSA + Keystone results by year

School yearEnglish Language ArtsMath
2024-2533.8%19.4%
2023-2438.1%22.1%
% Proficient or Advanced, all students and all tested grades.
Source: PSSA + Keystone. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
34.5%
composite math + reading, all grades
Predicted
35.1%
based on PA schools with similar FRL share
Beats by
-0.6pp
below demographic expectation

What 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%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
2,634
-406 (-13%) vs 2020
+394% since 2000-01, when it was 533
Student : Teacher
9.8:1
was 10.9:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252,6342709.8:199% (2,610)
2023-242,610270.29.7:1100% (2,610)
2022-232,645265.99.9:1100% (2,643)
2020-213,04027810.9:136% (1,103)
2017-182,887238.512.1:133% (958)
2015-162,66319813.4:126% (700)
2010-111,56213511.6:123% (366)
2000-015333814.0:10% (0)
Source: NCES Common Core of Data. Rows are the federal collections on file for Collegium CS.

Since 2017-18: students down 9% (2,887 to 2,634); teachers up 13% (238.5 to 270).

About Collegium CS

As a mid-sized school serving multiple grade levels, Collegium CS serves students in Exton, Pennsylvania. Enrollment stands at 2,634 students, covering kindergarten through 12. It has 45% more students than the average for combined schools in Pennsylvania (about 1,819).

Collegium CS is not part of a larger district; federal data list it as its own local education agency.

The largest racial or ethnic group at Collegium CS is Hispanic, with 31% of students. Enrollment also includes 30% White, 27% Black, 8% Asian, and 4% multiracial. Among people living in Chester County, the Hispanic share is about 8%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 74%.

For every teacher at Collegium CS, there are about 9.8 students; the school has 270 full-time-equivalent teachers. The average for combined schools in Pennsylvania is 15.5:1, so this school has fewer students per teacher. There are 2,610 students eligible for free or reduced-price lunch, 99% of enrollment. By comparison, the figure for public schools in Chester County is 38%.

On the allk12 Grade, Collegium CS lands at B+, ahead of 66% of Pennsylvania public K-12 schools.

Collegium CS is within a point of its predicted average proficiency rate across its state test results (34.5% versus 35.1%), which places it in neither the top nor the bottom 10% in Pennsylvania.

Looking at the county, Chester County, the median household earns about $127,208 a year, 57% of adults hold a bachelor's degree or higher, and about 4% of residents live below the federal poverty line. Counting Collegium CS, Chester County has 111 public schools.

Collegium CS's closest public school neighbor is Uwchlan Hills Elementary School, about 1.4 miles away. Counting only straight-line distance, at least 8 other public schools are within five miles. In a group of 8 nearby schools with scores, Collegium CS ranks 8th on average proficiency.

The National Center for Education Statistics classifies the school's location as Suburb: Large, meaning it is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more. As a charter school, Collegium CS is publicly funded and operates under a charter.

In 2020-21, Collegium CS enrolled 3,040 students. By 2024-25, that number had fallen to 2,634. In 2020-21, the student-to-teacher ratio was 10.9:1; by 2024-25 it was 9.8:1.

On allk12, people connected to Collegium CS can post about pickup and drop-off, after-school programs, and teacher feedback. Current and former families are welcome to add their experience.

Chester County at a glance

View full county profile
Population
547,840
Census ACS
Median income
$127,208
Household, ACS
Bachelor's+
57%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
111
83,468 students

Quick facts

School name
Collegium CS
District
Collegium CS
Address
456 Creamery Way, Exton, PA 19341
Phone
(610) 903-1300
County
Chester County
Level
Combined
Grade range
KG–12
Total enrollment
2,634
Teachers (FTE)
270
Student–teacher ratio
9.8:1
Free and reduced lunch
2,610 (99%)
Locale
21-Suburb: Large
NCES ID
420005000485
Charter school
Yes
Virtual school
No

Related schools

Other schools in Exton
Nearby schools

Frequently asked questions

About Collegium CS
How large is Collegium CS?
Collegium CS enrolls approximately 2,634 students in grades KG-12.
Is Collegium CS an elementary, middle, or high school?
Collegium CS is a combined-grade school covering grades KG-12.
What is the student-teacher ratio at Collegium CS?
The student-to-teacher ratio at Collegium CS is approximately 9.8:1 (270 FTE teachers).
What is the student diversity at Collegium CS?
Student demographics at Collegium CS are roughly 30% White, 31% Hispanic, 27% Black, 8% Asian, 4% Two or more.
What district is Collegium CS in?
Collegium CS is part of Collegium CS.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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