Enrollment
148
Pennsylvania · 2024-25 NCES data
Middle school (grades 6-8) · Pittsburgh, PA
Federal NCES profile for Pittsburgh Arsenal 6-8, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
Pittsburgh Arsenal 6-8 earns 48/100 on the Resource Investment Index, with class sizes smaller than 95% of Pennsylvania schools. It is also more racially and ethnically mixed than most Pennsylvania schools.
Pittsburgh Arsenal 6-8 has class sizes smaller than 95% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Pittsburgh Arsenal 6-8 ranks #14 of 21 middle schools in Pittsburgh, PA.
NCES ID 421917006751 Verify on NCES CCD record →
Enrollment
148
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
16.0
Federal CCD staff survey
Students per teacher
9.3:1
vs 13.6:1 Pennsylvania avg
-32% vs state
Free-lunch eligible
100.0%
vs 58.1% Pennsylvania avg
+72% vs state
How Pittsburgh Arsenal 6-8 compares with Pennsylvania and U.S. medians
Smaller classes than state median
9.3:1 - 4.3 below the Pennsylvania state median of 13.6:1, indicating smaller average class loads than typical schools in the state.
Pittsburgh Arsenal 6-8 is a high-poverty, small middle school in Pittsburgh, Pennsylvania, enrolling 148 students.
Classes run notably small here: at 9.3:1, Pittsburgh Arsenal 6-8 is leaner than roughly 95% of Pennsylvania schools and 32% under the state's 13.6:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 100.0% of students eligible for free meals.
This is a small campus: fewer students than 94% of Pennsylvania schools, with 148 enrolled.
Its Resource Investment Index sits near the middle of the pack among 2,889 scored Pennsylvania schools.
Against 81 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #30.
Its student body is led by African American (51%) and Hispanic or Latino (22%), more mixed than most schools in the state (diversity index 66/100).
Chronic absenteeism is elevated: 35.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Pittsburgh Sd spends $24,314 per pupil, 35% above the Pennsylvania average, a better-resourced district than most.
Discipline events run high: 36 in- and out-of-school suspensions were reported for 148 students in the 2021-22 Civil Rights Data Collection.
Among Pittsburgh's middle schools, it stands alongside North Hills Ms (1,127 students): Pittsburgh Arsenal 6-8 is smaller than that campus by headcount and runs leaner classes (9.3:1 vs 15:1).
Pittsburgh Sd also operates Pittsburgh Allderdice Hs (1,386 students) and Pittsburgh Brashear Hs (897 students) alongside Pittsburgh Arsenal 6-8.
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
Pittsburgh Arsenal 6-8 on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.3:1 | ▼ 32% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 72% | 58.1% | 51.7% |
| Enrollment | 148 | top 94% | - | - |
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: African American at 50.7% of enrollment.
Simpson diversity index - at 66.3, Pittsburgh Arsenal 6-8 is more mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for Pittsburgh Sd, which includes Pittsburgh Arsenal 6-8.
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 |
|---|---|---|---|
| Pittsburgh Allderdice Hs | Larger | Similar economic need | Higher S:T ratio |
| Pittsburgh Brashear Hs | Larger | Similar economic need | Similar S:T ratio |
| Pittsburgh Capa 6-12 | Larger | Similar economic need | Higher S:T ratio |
| Pittsburgh Colfax K-8 | Larger | Similar economic need | Higher S:T ratio |
| Pittsburgh Obama 6-12 | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Pittsburgh Arsenal 6-8's own figures; each column derives from NCES Common Core of Data.
6 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 Pittsburgh Arsenal 6-8'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.
Pittsburgh Arsenal 6-8 has 148 students enrolled. It is a middle school in Pittsburgh, PA.
The student-teacher ratio at Pittsburgh Arsenal 6-8 is 9.3:1, which is 32% lower than the Pennsylvania average of 13.6:1 and 41% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
100.0% of students at Pittsburgh Arsenal 6-8 are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at Pittsburgh Arsenal 6-8 is African American at 50.7% of enrollment, in Pittsburgh, PA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.3/100.
Pittsburgh Arsenal 6-8 has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Pittsburgh Arsenal 6-8 ranks #14 of 21 middle schools in Pittsburgh, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Pittsburgh on the city page.
Pittsburgh Arsenal 6-8 earns 48/100 on the Resource Investment Index, with class sizes smaller than 95% 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 Pittsburgh Arsenal 6-8, Pittsburgh Sd also operates Pittsburgh Allderdice Hs (1,386 students), Pittsburgh Brashear Hs (897 students), and Pittsburgh Capa 6-12 (840 students). See the Pittsburgh 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, “Pittsburgh Arsenal 6-8, Pittsburgh 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/pittsburgh-arsenal-6-8-pa
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