Enrollment
1,825
Pennsylvania · 2024-25 NCES data
High school (grades 9-12) · Folsom, PA
Federal NCES profile for Ridley Hs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
The verdict
Ridley Hs earns 52/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. It is also one of the largest schools in Pennsylvania.
Ridley Hs has class sizes near the Pennsylvania median. Computed live against every Pennsylvania school reporting to NCES.
NCES ID 422037001934 Verify on NCES CCD record →
Enrollment
1,825
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
129.0
Federal CCD staff survey
Students per teacher
14.1:1
vs 13.6:1 Pennsylvania avg
+4% vs state
Free-lunch eligible
46.1%
vs 58.1% Pennsylvania avg
-21% vs state
How Ridley Hs compares with Pennsylvania and U.S. medians
Slightly above state median
14.1:1 - 0.5 above the Pennsylvania state median of 13.6:1, indicating larger average class loads than typical schools in the state.
Ridley Hs is a large high school in Folsom, Pennsylvania, enrolling 1,825 students.
Class loads run somewhat heavier than typical: 14.1:1 puts it in the larger third of Pennsylvania schools by student-teacher ratio.
Its free-meal eligibility rate of 46.1% lands close to the Pennsylvania typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in Pennsylvania, bigger than 98% of state schools at 1,825 students.
Its Resource Investment Index sits near the middle of the pack among 2,889 scored Pennsylvania schools.
Against 55 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #13.
Its student body is led by White (66%) and African American (18%) (diversity index 52/100).
On the academic-pipeline side it reports 13 Advanced Placement courses.
Counselor coverage runs a bit thin, about 261 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 27.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Ridley Sd also operates Ridley Ms (1,291 students) and Amosland El Sch (470 students) alongside Ridley Hs.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Ridley Hs on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.1:1 | ▲ 4% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 46.1% | ▼ 21% | 58.1% | 51.7% |
| Enrollment | 1,825 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 65.9% of enrollment.
Simpson diversity index - at 52.4, Ridley Hs is more mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for Ridley Sd, which includes Ridley Hs.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Ridley Ms | Smaller | Similar economic need | Similar S:T ratio |
| Amosland El Sch | Smaller | Similar economic need | Similar S:T ratio |
| Lakeview El Sch | Smaller | Similar economic need | Similar S:T ratio |
| Grace Park El Sch | Smaller | Lower economic need | Similar S:T ratio |
| Edgewood El Sch | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Ridley Hs's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Pennsylvania, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Ridley Hs's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Ridley Hs has 1,825 students enrolled. It is a high school in Folsom, PA.
The student-teacher ratio at Ridley Hs is 14.1:1, which is 4% higher than the Pennsylvania average of 13.6:1 and 10% lower than the national average of 15.7:1.
46.1% of students at Ridley Hs are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at Ridley Hs is White at 65.9% of enrollment, in Folsom, PA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.4/100.
Ridley Hs has a Resource Investment Index of 52/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Ridley Hs earns 52/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. It is also one of the largest schools in Pennsylvania. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Ridley Hs, Ridley Sd also operates Ridley Ms (1,291 students), Amosland El Sch (470 students), and Lakeview El Sch (403 students). See the Ridley Sd district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Ridley Hs, Folsom PA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/ridley-hs-pa
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.