Enrollment
1,025
Pennsylvania · 2024-25 NCES data
Middle school (grades 6-8) · Chambersburg, PA
Federal NCES profile for Chambersburg Area Ms - South, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
Chambersburg Area Ms - South earns 48/100 on the Resource Investment Index, with class sizes larger than 85% of Pennsylvania schools. It is also more racially and ethnically mixed than most Pennsylvania schools.
Chambersburg Area Ms - South has class sizes larger than 85% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Chambersburg Area Ms - South ranks #10 of 16 public schools in Chambersburg, PA.
NCES ID 420555006615 Verify on NCES CCD record →
Enrollment
1,025
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
64.0
Federal CCD staff survey
Students per teacher
16:1
vs 13.6:1 Pennsylvania avg
+18% vs state
Free-lunch eligible
63.1%
vs 58.1% Pennsylvania avg
+9% vs state
How Chambersburg Area Ms - South compares with Pennsylvania and U.S. medians
Slightly above state median
16:1 - 2.4 above the Pennsylvania state median of 13.6:1, indicating larger average class loads than typical schools in the state.
Chambersburg Area Ms - South is a higher-need, large middle school in Chambersburg, Pennsylvania, enrolling 1,025 students.
Class loads run somewhat heavier than typical: 16:1 puts it in the larger third of Pennsylvania schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 63.1% of students eligible for free meals.
By headcount it is one of the larger campuses in Pennsylvania, bigger than 91% of state schools at 1,025 students.
Its Resource Investment Index sits near the middle of the pack among 2,889 scored Pennsylvania schools.
Against 71 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #18.
Its student body is led by White (51%) and Hispanic or Latino (30%), more mixed than most schools in the state (diversity index 64/100).
Counselor availability sits well past the ASCA benchmark, roughly 342 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 18.6% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Chambersburg Area Sd spends $14,464 per pupil, 20% below the Pennsylvania average, a leaner-resourced district than most.
Among Chambersburg's middle schools, it stands alongside Chambersburg Area Ms - North (1,072 students): Chambersburg Area Ms - South is smaller than that campus by headcount and runs leaner classes (16:1 vs 17:1).
Chambersburg Area Sd also operates Chambersburg Area Shs (2,319 students) and Chambersburg Area Ms - North (1,072 students) alongside Chambersburg Area Ms - South.
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
Chambersburg Area Ms - South on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16:1 | ▲ 18% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 63.1% | ▲ 9% | 58.1% | 51.7% |
| Enrollment | 1,025 | top 9% | - | - |
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 50.5% of enrollment.
Simpson diversity index - at 63.8, Chambersburg Area Ms - South is more mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for Chambersburg Area Sd, which includes Chambersburg Area Ms - South.
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 |
|---|---|---|---|
| Chambersburg Area Shs | Larger | Similar economic need | Higher S:T ratio |
| Chambersburg Area Ms - North | Similar size | Similar economic need | Similar S:T ratio |
| Chambersburg Area Career Magnet Sch | Smaller | Lower economic need | Higher S:T ratio |
| Benjamin Chambers El Sch | Smaller | Higher economic need | Similar S:T ratio |
| Hamilton Heights El Sch | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Chambersburg Area Ms - South's own figures; each column derives from NCES Common Core of Data.
1 comparable middle schools (grades 6-8) serving the same city.
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 Chambersburg Area Ms - South'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.
Chambersburg Area Ms - South has 1,025 students enrolled. It is a middle school in Chambersburg, PA.
The student-teacher ratio at Chambersburg Area Ms - South is 16:1, which is 18% higher than the Pennsylvania average of 13.6:1 and 2% higher than the national average of 15.7:1.
63.1% of students at Chambersburg Area Ms - South are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at Chambersburg Area Ms - South is White at 50.5% of enrollment, in Chambersburg, PA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.8/100.
Chambersburg Area Ms - South has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Chambersburg Area Ms - South ranks #10 of 16 public schools in Chambersburg, 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 Chambersburg on the city page.
Chambersburg Area Ms - South earns 48/100 on the Resource Investment Index, with class sizes larger than 85% of Pennsylvania schools. It is also more racially and ethnically mixed than most Pennsylvania schools. 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 Chambersburg Area Ms - South, Chambersburg Area Sd also operates Chambersburg Area Shs (2,319 students), Chambersburg Area Ms - North (1,072 students), and Chambersburg Area Career Magnet Sch (706 students). See the Chambersburg Area 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, “Chambersburg Area Ms - South, Chambersburg 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/chambersburg-area-ms-south-pa/
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.