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Ridley MS
School pathway
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedWhat this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 42 of every 100 students at this school read and write at grade level and about 26 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 9 points since 2023, while math scores are down about 2 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 38% of students here test proficient in math and reading, compared with the roughly 53% 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 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 profileQuick facts
Related schools
- Ridley HSHigh · 1,825 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
- Lakeview El SchElementary · 403 students
- Leedom El SchElementary · 291 students
- Lakeview El Sch0.1 mi · 403
- Woodlyn El Sch0.6 mi · 320
- Leedom El Sch0.8 mi · 291
- Ridley HS0.9 mi · 1,825
- Grace Park El Sch0.9 mi · 366
- Edgewood El Sch1.2 mi · 347