Enrollment
321
Pennsylvania · 2024-25 NCES data
Middle school (grades 6-8) · Mckeesport, PA
Federal NCES profile for South Allegheny Ms, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
The verdict
South Allegheny Ms earns 37/100 on the Resource Investment Index, with class sizes near the Pennsylvania median.
South Allegheny Ms has class sizes near the Pennsylvania median. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, South Allegheny Ms ranks #7 of 9 public schools in Mckeesport, PA.
NCES ID 422191007668 Verify on NCES CCD record →
Enrollment
321
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
23.0
Federal CCD staff survey
Students per teacher
14:1
vs 13.6:1 Pennsylvania avg
+3% vs state
Free-lunch eligible
99.7%
vs 58.1% Pennsylvania avg
+72% vs state
How South Allegheny Ms compares with Pennsylvania and U.S. medians
Slightly above state median
14:1 - 0.4 above the Pennsylvania state median of 13.6:1, indicating larger average class loads than typical schools in the state.
South Allegheny Ms is a high-poverty, mid-sized middle school in Mckeesport, Pennsylvania, enrolling 321 students.
Class loads run somewhat heavier than typical: 14:1 puts it in the larger third of Pennsylvania schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 99.7% of students eligible for free meals.
Enrollment of 321 puts it in the smaller third of Pennsylvania schools by headcount.
Its Resource Investment Index lands in the lower third of 2,889 scored Pennsylvania schools.
Against 431 statewide peers matched on enrollment and economic need, it ranks mid-pack at #277.
Its student body is led by White (71%) and African American (15%) (diversity index 46/100).
Counselor coverage runs a bit thin, about 321 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 54.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 130 in- and out-of-school suspensions were reported for 321 students in the 2021-22 Civil Rights Data Collection.
South Allegheny Sd also operates South Allegheny El Sch (635 students) and South Allegheny Hs (464 students) alongside South Allegheny Ms.
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
South Allegheny Ms 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 | ▲ 3% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 99.7% | ▲ 72% | 58.1% | 51.7% |
| Enrollment | 321 | top 74% | - | - |
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 71.3% of enrollment.
Simpson diversity index - at 45.9, South Allegheny Ms is more mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for South Allegheny Sd, which includes South Allegheny Ms.
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 |
|---|---|---|---|
| South Allegheny El Sch | Larger | Similar economic need | Higher S:T ratio |
| South Allegheny Hs | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to South Allegheny Ms'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 South Allegheny Ms'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.
South Allegheny Ms has 321 students enrolled. It is a middle school in Mckeesport, PA.
The student-teacher ratio at South Allegheny Ms is 14:1, which is 3% higher than the Pennsylvania average of 13.6:1 and 11% lower than the national average of 15.7:1.
99.7% of students at South Allegheny Ms are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at South Allegheny Ms is White at 71.3% of enrollment, in Mckeesport, PA.
South Allegheny Ms has a Resource Investment Index of 37/100 (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, South Allegheny Ms ranks #7 of 9 public schools in Mckeesport, 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 Mckeesport on the city page.
South Allegheny Ms earns 37/100 on the Resource Investment Index, with class sizes near the Pennsylvania median. 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 South Allegheny Ms, South Allegheny Sd also operates South Allegheny El Sch (635 students) and South Allegheny Hs (464 students). See the South Allegheny 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, “South Allegheny Ms, Mckeesport 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/south-allegheny-ms-pa/
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