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SCHOOL COMMUNITY·RIDLEY SD·NCES 422037007299

Ridley MS

400 Free St., Ridley Park, PA 19078 · (610) 534-1900 · Delaware County
GRADES 06–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL1,291 STUDENTS
Enrollment
1,291
Middle
DISTRICT 615 · STATE 594
Student : Teacher
13.7:1
94 FTE teachers
DISTRICT 12.8:1 · STATE 13.2:1
Free / Reduced Lunch
57%
732 students
DISTRICT 56% · STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
420
Grade 7
436
Grade 8
435
Student demographics
White
83965%
DISTRICT 66% · STATE 60%
Hispanic
726%
DISTRICT 6% · STATE 16%
Black
25420%
DISTRICT 17% · STATE 14%
Asian
373%
DISTRICT 4% · STATE 5%
Two+
836%
DISTRICT 6% · STATE 5%
Native American
30%
DISTRICT 0% · STATE 0%
Pacific Islander
30%
DISTRICT 0% · STATE 0%
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
Male
67953%
Female
61247%

Discussions

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Test scores

PSSA + Keystone 2024-25 . % Proficient or Advanced
English Language Arts
42.3%
PA avg 51.1% . -9.1pp since 2023
Math
26.1%
PA avg 43.0% . -1.8pp since 2023
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
37.9%
composite math + reading, all grades
Predicted
53.3%
based on PA schools with similar FRL share
Beats by
-15.4pp
below demographic expectation
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 2024-25
Enrollment
1,291
-48 (-4%) vs 2017
Student : Teacher
13.7:1
was 15.1:1
% White
65%
was 76%
% Hispanic
6%
was 5%
% Black
20%
was 13%
% Asian
3%
was 3%
Source: NCES Common Core of Data

About Ridley MS

Set in Ridley Park, Pennsylvania, Ridley MS is a well-populated middle school, overseen by Ridley SD. It serves 1,291 students across grades 6 through 8. By comparison, Pennsylvania's public schools average about 594 students each, so Ridley MS sits 117% larger than that benchmark.

Ridley SD comprises 9 schools with combined enrollment of 5,539 students; Ridley MS is among them.

For racial and ethnic makeup, Ridley MS logs that 65% of the student body identifies as White. Other groups include 20% Black, 6% multiracial, 6% Hispanic, 3% Asian. Compared to Delaware County overall, the school's racial mix sits in roughly the same range.

Looking at school resources, Ridley MS records 94 full-time-equivalent teachers, putting the student-to-teacher ratio at about 13.7:1. That tracks the state average closely. About 57% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.

With demographic context factored in, Ridley MS performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 53.3%, the actual is 37.9%, a residual of -15.4 points.

In the surrounding community, the surrounding county (Delaware County) records that median household income runs about $89,546, about 42% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 7%. Ridley MS is one of 113 public schools in Delaware County (combined enrollment of about 74,663 students).

Nearest neighbor: Lakeview El Sch, around 0.1 miles off. Within five miles, there are 8 other public schools. On composite proficiency, Ridley MS comes 9th of 9 in the immediate cluster, beneath the nearby-schools average of 50.0%.

Ridley MS operates from a commuter-belt location.

Over the past 7-year window. Ridley MS's enrollment has contracted 4% since 2018, when it stood at 1,339 (now 1,291). Over the same period, the White share declined from 76% to 65%. Class-load math has pulled in: from 15.1:1 in 2018 to 13.7:1 in 2025.

Within the allk12 community for this school, the feed for Ridley MS typically covers fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.

Delaware County at a glance

View full county profile
Population
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

School name
Ridley MS
District
Ridley SD
Address
400 Free St., Ridley Park, PA 19078
Phone
(610) 534-1900
County
Delaware County
Level
Middle
Grade range
06–08
Total enrollment
1,291
Teachers (FTE)
94
Student–teacher ratio
13.7:1
Free/Reduced lunch
732 (57%)
Locale
21-Suburb: Large
NCES ID
422037007299
Charter school
No
Virtual school
No

Related schools

Other schools in Ridley SD
Other schools in Ridley Park
Nearby schools

Frequently asked questions

About Ridley MS
How many students attend Ridley MS?
Ridley MS enrolls approximately 1,291 students in grades 06-08.
Is Ridley MS an elementary, middle, or high school?
Ridley MS is a middle school covering grades 06-08.
How many students per teacher at Ridley MS?
Approximately 13.7:1 students per teacher at Ridley MS.
How diverse is Ridley MS?
Ridley MS reports a student body of 65% White, 6% Hispanic, 20% Black, 3% Asian, 6% Two or more.
What district is Ridley MS in?
Ridley MS is part of Ridley SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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