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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 High School
901 Morton Avenue, Folsom, PA 19033 · (610) 237-8034 · Delaware County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL1,825 STUDENTS
B-
allk12 Grade
Scored higher than 51% of Pennsylvania public high schools
- B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-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 high schools
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, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 438 | 24% |
| Grade 10 | 465 | 25% |
| Grade 11 | 472 | 26% |
| Grade 12 | 450 | 25% |
Student demographics
52%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 53% · STATE 59% · US 70%
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
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.
PSSA + Keystone results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 60.0% | 49.7% |
| 2023-24 | 62.2% | 44.1% |
% 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 · 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 →
Schools most like Ridley High School
Ridley High School's state test result (51.7% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Ridley High School this school | 1,825 | 53.5% | 51.7% |
| Williamsport Area SHS Williamsport | 1,462 | 59.4% | 48.3% |
| Interboro SHS Prospect Park | 1,079 | 53.1% | 46.3% |
| Carlisle Area High School Carlisle | 1,559 | 45.2% | 52.4% |
| Bucks County Technical High School Fairless Hills | 1,415 | 48.9% | 36.3% |
| Red Lion Area SHS Red Lion | 1,363 | 49.2% | 49.7% |
Matched among Pennsylvania high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Ridley High School ranks
Among high schools| Measure | This school | In Pennsylvania | In Delaware County |
|---|---|---|---|
| State test proficiency ranked highest first | 51.7% | #276 of 576 | #8 of 14 |
| Math proficiency ranked highest first | 49.7% | #202 of 626 ▲ 39 | #8 of 16 ▼ 1 |
| Reading proficiency ranked highest first | 60.0% | #300 of 626 ▼ 5 | #10 of 16 no change |
| Enrollment ranked largest first | 1,825 | #43 of 713 | #3 of 19 |
| Students per teacher ranked fewest first | 14.4:1 | #365 of 601 | #9 of 17 |
| Diversity index ranked most diverse first | 52.4% | #130 of 604 | #4 of 17 |
| Free and reduced lunch ranked highest share first | 53.5% | #311 of 619 | #8 of 17 |
| Enrollment change since 2017-18 ranked fastest growth first | +2.1% | #188 of 221 | #8 of 9 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
1,825
-55 (-3%) vs 2020
+41% since 1990-91, when it was 1,293
Student : Teacher
14.4:1
was 14.5:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,825 | 126.4 | 14.4:1 | 53% (976) |
| 2023-24 | 1,888 | 129.9 | 14.5:1 | 52% (976) |
| 2022-23 | 1,869 | 129 | 14.5:1 | 49% (909) |
| 2020-21 | 1,880 | 130 | 14.5:1 | 36% (683) |
| 2017-18 | 1,787 | 123.6 | 14.5:1 | 36% (644) |
| 2015-16 | 1,809 | 122 | 14.8:1 | 38% (679) |
| 2010-11 | 2,089 | 138 | 15.1:1 | 20% (428) |
| 2000-01 | 1,883 | 114 | 16.5:1 | 14% (273) |
| 1990-91 | 1,293 | 91 | 14.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Ridley High School.
Since 2017-18: students up 2% (1,787 to 1,825); teachers up 2% (123.6 to 126.4).
About Ridley High School
Located in Folsom, Pennsylvania, Ridley High School is a large high school. Enrollment in 2024-25 was 1,825 students in grades 9 through 12. The average for high schools in Pennsylvania is about 738 students, so this school is 147% bigger than average.
Federal data list 9 schools in Ridley SD, with 5,539 students enrolled.
White students are the majority at Ridley High School, with 66% of enrollment. It is also 18% Black, 7% Hispanic, 5% multiracial, and 3% Asian. That is close to the 63% White share among all Delaware County residents. Pick two students at random and there is a 52% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
Its 126.4 full-time-equivalent teachers give the school a ratio of 14.4:1. The school has more students per teacher than the 12.8:1 average for high schools in Pennsylvania. The school's lunch program data list 53% of students as eligible for free or reduced-price meals.
allk12 grades Ridley High School a B-. The grade compares the school only with Pennsylvania public high schools, because each state gives its own test.
Compared with Pennsylvania schools that have similar shares of low-income students, Ridley High School's results are 3.0 points below predicted: 51.7% against 54.7%.
Across Delaware County, the median household income is $89,546, a bachelor's degree or higher is held by about 42% of adults, and the share of residents below the poverty line is 7%. Delaware County is home to 113 public schools and about 74,663 public school students.
Nearby, Edgewood Elementary School is about 0.4 miles away. Within five miles of Ridley High School, there are at least 8 other public schools. On average proficiency, Ridley High School is 6th of 9 nearby schools with test data.
NCES lists the school's locale as Suburb: Large. That means it sits in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Over 4 years, Ridley High School's enrollment declined 3%, to 1,825.
Discussion on this page can cover science fairs, picture day, and bus routes. Reviews and ratings from people who know the school are welcome.
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 Middle SchoolMiddle · 1,291 students
- Amosland Elementary SchoolElementary · 470 students
- Lakeview Elementary SchoolElementary · 403 students
- Grace Park Elementary SchoolElementary · 366 students
- Edgewood Elementary SchoolElementary · 347 students
- Woodlyn Elementary SchoolElementary · 320 students
Nearby schools
- Edgewood Elementary School0.4 mi · 347
- Grace Park Elementary School0.6 mi · 366
- Ridley Middle School0.9 mi · 1,291
- Lakeview Elementary School1.0 mi · 403
- Woodlyn Elementary School1.0 mi · 320
- Swarthmore-Rutledge School1.1 mi · 560
Frequently asked questions
About Ridley High SchoolHow large is Ridley High School?
Ridley High School enrolls approximately 1,825 students in grades 09-12.
Is Ridley High School an elementary, middle, or high school?
Ridley High School is a high school covering grades 09-12.
How many teachers does Ridley High School have?
Ridley High School employs 126 FTE teachers, for a student-to-teacher ratio of 14.4:1.
What is the student diversity at Ridley High School?
Student demographics at Ridley High School are roughly 66% White, 7% Hispanic, 18% Black, 3% Asian, 5% Two or more.
Who oversees Ridley High School?
Ridley High School is overseen by Ridley SD in Delaware County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.