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If you could change one rule at Ridley HS, what would it be?
Community prompt from u/allk12. Replies below.
Enrollment
1,825
High
DISTRICT 615 · STATE 738
SCHOOL COMMUNITY·RIDLEY SD·NCES 422037001934
Ridley HS
901 Morton Avenue, Folsom, PA 19033 · (610) 237-8034 · Delaware County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL1,825 STUDENTS
Student : Teacher
14.4:1
126 FTE teachers
DISTRICT 12.8:1 · STATE 12.8:1
Free / Reduced Lunch
53%
976 students
DISTRICT 56% · STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Ridley SD. Attendance zones can vary; confirm enrollment with the district.
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
60.0%
PA avg 51.1% . -2.2pp since 2023
Math
49.7%
PA avg 43.0% . +5.6pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 60 of every 100 students at this school read and write at grade level and about 50 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 2 points since 2023, while math scores are up about 6 points.
Source: PSSA + Keystone. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
51.7%
composite math + reading, all grades
Predicted
54.7%
based on PA schools with similar FRL share
Beats by
-3.0pp
below demographic expectation
What this means: About 52% of students here test proficient in math and reading, compared with the roughly 55% 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 →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
1,825
+38 (+2%) vs 2017
Student : Teacher
14.4:1
was 14.5:1
% White
66%
was 81%
% Hispanic
7%
was 3%
% Black
18%
was 12%
% Asian
3%
was 3%
Source: NCES Common Core of Data
About Ridley HS
Ridley HS, a heavily attended four-year high school in Folsom, Pennsylvania, operated by Ridley SD, serves 1,825 students, covering grades 9 through 12. That puts it 147% bigger than the typical public school in Pennsylvania, which averages around 738 students.
Ridley HS is one of 9 schools operated by Ridley SD, a district that caters to 5,539 students overall.
On the student-mix side, Ridley HS lists that 66% of the student body identifies as White; the rest looks like 18% Black, 7% Hispanic, 5% multiracial, 3% Asian. That mix tracks the wider county fairly closely.
Looking at school resources, The school currently runs with 126 full-time-equivalent teachers, for a student-teacher ratio near 14.4:1. Statewide, the average ratio sits near 12.8:1, putting Ridley HS higher than the state norm the norm. Roughly 53% of students at Ridley HS qualify for free or reduced-price lunch, often used as a Title I proxy.
On a demographically-adjusted basis, Ridley HS performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 54.7%, the actual is 51.7%, a residual of -3.0 points.
Around the school, the surrounding county (Delaware County) records that the typical household earns roughly $89,546 per year, 42% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 7%. Across Delaware County's 113 public schools (combined enrollment of about 74,663 students), Ridley HS is one campus in the mix.
Nearest neighbor: Edgewood El Sch, around 0.4 miles off. Counting just inside five miles, 8 other public schools cluster around Ridley HS. On composite proficiency, Ridley HS comes 6th of 9 in the immediate cluster, behind the nearby-schools average of 55.1%.
Geographically, the school is in a commuter-belt area.
Over the past 7-year window. Looking back 7 years, enrollment at Ridley HS has held roughly steady, going from 1,787 students in 2018 to 1,825 in 2025. Over the same period, the White share ticked down from 81% to 66%.
On this page, posts here usually surface around fundraisers, lost-and-found posts, and report-card season. Anyone with firsthand experience at this school can post or comment.
Delaware County at a glance
View full county profilePopulation
579,222
Census ACS
Median income
$89,546
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
113
74,663 students
Quick facts
Related schools
Other schools in Ridley SD
- Ridley MSMiddle · 1,291 students
- Amosland El SchElementary · 470 students
- Lakeview El SchElementary · 403 students
- Grace Park El SchElementary · 366 students
- Edgewood El SchElementary · 347 students
- Woodlyn El SchElementary · 320 students
Nearby schools
- Edgewood El Sch0.4 mi · 347
- Grace Park El Sch0.6 mi · 366
- Ridley MS0.9 mi · 1,291
- Lakeview El Sch1.0 mi · 403
- Woodlyn El Sch1.0 mi · 320
- Swarthmore-Rutledge Sch1.1 mi · 560
Frequently asked questions
About Ridley HSHow large is Ridley HS?
Ridley HS enrolls approximately 1,825 students in grades 09-12.
Is Ridley HS an elementary, middle, or high school?
Ridley HS is a high school covering grades 09-12.
How many teachers does Ridley HS have?
Ridley HS employs 126 FTE teachers, for a student-to-teacher ratio of 14.4:1.
What is the student diversity at Ridley HS?
Student demographics at Ridley HS are roughly 66% White, 7% Hispanic, 18% Black, 3% Asian, 5% Two or more.
Who oversees Ridley HS?
Ridley HS is overseen by Ridley SD in Delaware County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.