Enrollment
573
Pennsylvania · 2024-25 NCES data
Elementary school (grades K-5) · Philadelphia, PA
Federal NCES profile for Mastery Cs - Mann Campus, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
The verdict
Mastery Cs - Mann Campus earns 27/100 on the Resource Investment Index, with class sizes larger than 90% of Pennsylvania schools.
Mastery Cs - Mann Campus has class sizes larger than 90% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Mastery Cs - Mann Campus ranks #90 of 131 elementary schools in Philadelphia, PA.
NCES ID 420083107367 Verify on NCES CCD record →
Enrollment
573
Pennsylvania · 2024-25 NCES data
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 13.6:1 Pennsylvania avg
+24% vs state
Free-lunch eligible
99.4%
vs 58.1% Pennsylvania avg
+71% vs state
How Mastery Cs - Mann Campus compares with Pennsylvania and U.S. medians
Mastery Cs - Mann Campus is a high-poverty, mid-sized charter elementary school in Philadelphia, Pennsylvania, enrolling 573 students.
Class loads run heavy: 16.9:1 is larger than about 90% of Pennsylvania schools and 24% above the 13.6:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 99.4% of students eligible for free meals.
Enrollment of 573 puts it in the larger third of Pennsylvania schools by headcount.
Its Resource Investment Index trails 94% of the 2,889 Pennsylvania schools with a score on record, one of the lower results on this measure.
Among 490 similarly sized, similarly resourced-need Pennsylvania schools statewide, it ranks #397, in the lower tier once campus size and economic need are matched.
Its student body is predominantly African American (86% of enrollment) (diversity index 25/100).
Counselor access is stretched at roughly 573 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 22.0% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 22.8% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Philadelphia's elementary schools, it stands alongside Northeast Community Propel Academy (1,783 students): Mastery Cs - Mann Campus is smaller than that campus by headcount and runs leaner classes (16.9:1 vs 22.6:1).
Mastery Cs-Mann Campus is a single-school charter district, so Mastery Cs - Mann Campus operates independently rather than alongside district-mates.
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
Mastery Cs - Mann Campus on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.9:1 | ▲ 24% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 99.4% | ▲ 71% | 58.1% | 51.7% |
| Enrollment | 573 | top 33% | - | - |
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 85.9% of enrollment.
Simpson diversity index - at 25.4, Mastery Cs - Mann Campus is less mixed than the Pennsylvania school average of 37.3.
District-wide per-pupil expenditure for Mastery Cs-Mann Campus, which includes Mastery Cs - Mann Campus.
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.
6 comparable elementary schools (grades K-5) 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 Mastery Cs - Mann Campus'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.
Mastery Cs - Mann Campus has 573 students enrolled. It is an elementary school in Philadelphia, PA.
The student-teacher ratio at Mastery Cs - Mann Campus is 16.9:1, which is 24% higher than the Pennsylvania average of 13.6:1 and 8% higher than the national average of 15.7:1.
99.4% of students at Mastery Cs - Mann Campus are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
The largest demographic group at Mastery Cs - Mann Campus is African American at 85.9% of enrollment, in Philadelphia, PA.
Mastery Cs - Mann Campus has a Resource Investment Index of 27/100 (lower 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, Mastery Cs - Mann Campus ranks #90 of 131 elementary schools in Philadelphia, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Philadelphia on the city page.
Mastery Cs - Mann Campus earns 27/100 on the Resource Investment Index, with class sizes larger than 90% of 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.
None; Mastery Cs-Mann Campus is a single-school charter district, and Mastery Cs - Mann Campus is its only campus.
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.