Enrollment
1,485
Pennsylvania · 2024-25 NCES data
High school (grades 9-12) · Glen Mills, PA
Federal NCES profile for Garnet Valley Hs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 68/100.
The verdict
Garnet Valley Hs earns 68/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. It is also one of the largest schools in Pennsylvania.
Garnet Valley Hs has class sizes near the Pennsylvania median. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Garnet Valley Hs ranks #4 of 4 public schools in Glen Mills, PA.
NCES ID 421059001869 Verify on NCES CCD record →
Enrollment
1,485
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
117.0
Federal CCD staff survey
Students per teacher
12.7:1
vs 13.6:1 Pennsylvania avg
-7% vs state
Free-lunch eligible
12.6%
vs 58.1% Pennsylvania avg
-78% vs state
How Garnet Valley Hs compares with Pennsylvania and U.S. medians
At or below state median
12.7:1 - 0.9 below the Pennsylvania state median of 13.6:1, indicating smaller average class loads than typical schools in the state.
Garnet Valley Hs is a lower-poverty, large high school in Glen Mills, Pennsylvania, enrolling 1,485 students.
Class sizes run a bit leaner than typical: 12.7:1 puts it in the smaller third of Pennsylvania schools by student-teacher ratio.
Comparatively few students face economic hardship here, 12.6% free-meal eligibility runs 78% below the Pennsylvania average.
By headcount it is one of the larger campuses in Pennsylvania, bigger than 97% of state schools at 1,485 students.
Its Resource Investment Index outscores 91% of the 2,889 Pennsylvania schools with a score on record, a top-tier result on this measure.
Among 97 similarly sized, similarly resourced-need Pennsylvania schools statewide, it ranks #9, a top-tier result once campus size and economic need are matched.
Its student body is led by White (69%) and Asian (22%) (diversity index 48/100).
On the academic-pipeline side it reports 27 Advanced Placement courses.
Counselor coverage is strong, about 248 students per counselor, inside the American School Counselor Association's recommended 250:1.
12.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Garnet Valley Sd spends $21,826 per pupil, 21% above the Pennsylvania average, a better-resourced district than most.
Garnet Valley Sd also operates Garnet Valley Ms (1,086 students) and Garnet Valley El Sch (700 students) alongside Garnet Valley 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
Garnet Valley 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 | 12.7:1 | ▼ 7% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 12.6% | ▼ 78% | 58.1% | 51.7% |
| Enrollment | 1,485 | top 3% | - | - |
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 68.6% of enrollment.
Simpson diversity index - at 47.9, Garnet Valley Hs is more mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for Garnet Valley Sd, which includes Garnet Valley 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 |
|---|---|---|---|
| Garnet Valley Ms | Smaller | Similar economic need | Similar S:T ratio |
| Garnet Valley El Sch | Smaller | Similar economic need | Lower S:T ratio |
| Concord El Sch | Smaller | Similar economic need | Lower S:T ratio |
| Bethel Springs El Sch | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Garnet Valley 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 Garnet Valley 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.
Garnet Valley Hs has 1,485 students enrolled. It is a high school in Glen Mills, PA.
The student-teacher ratio at Garnet Valley Hs is 12.7:1, which is 7% lower than the Pennsylvania average of 13.6:1 and 19% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
12.6% of students at Garnet Valley Hs are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at Garnet Valley Hs is White at 68.6% of enrollment, in Glen Mills, PA.
Garnet Valley Hs has a Resource Investment Index of 68/100 (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).
By Resource Investment Index, Garnet Valley Hs ranks #4 of 4 public schools in Glen Mills, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Glen Mills on the city page.
Garnet Valley Hs earns 68/100 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 Garnet Valley Hs, Garnet Valley Sd also operates Garnet Valley Ms (1,086 students), Garnet Valley El Sch (700 students), and Concord El Sch (617 students). See the Garnet Valley 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.
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PlainSchools, “Garnet Valley Hs, Glen Mills 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/garnet-valley-hs-pa
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