Enrollment
598
Pennsylvania · 2024-25 NCES data
Elementary school (grades K-5) · Philadelphia, PA
Mastery Prep Elementary Cs
Federal NCES profile for Mastery Prep Elementary Cs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
2024-25 NCES dataElementary school (grades K-5)NCES 420090007662Charter school
👥 S:T ratio 23
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 54
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mastery Prep Elementary Cs earns 27/100 on the Resource Investment Index, with class sizes larger than 97% of Pennsylvania schools.
- #90 of 131
- elementary schools in Philadelphia · Resource Index
- 27
- Resource Index · Lower
- 19.3:1
- large classes for Pennsylvania
- 598
- students enrolled
Mastery Prep Elementary Cs has class sizes larger than 97% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Mastery Prep Elementary Cs ranks #90 of 131 elementary schools in Philadelphia, PA.
School address
District: Mastery Prep Elementary Cs · Pennsylvania
NCES ID 420090007662 Verify on NCES CCD record →
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
19.3:1
vs 13.6:1 Pennsylvania avg
+42% vs state
Student-teacher ratio in context
How Mastery Prep Elementary Cs compares with Pennsylvania and U.S. medians
What stands out at Mastery Prep Elementary Cs
Mastery Prep Elementary Cs is a mid-sized charter elementary school in Philadelphia, Pennsylvania, enrolling 598 students.
Class loads run heavy: 19.3:1 is larger than about 97% of Pennsylvania schools and 42% above the 13.6:1 state mean, so each teacher carries more students than is typical.
Enrollment of 598 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.
Its student body is predominantly African American (85% of enrollment) (diversity index 26/100).
Counselor access is stretched at roughly 598 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 18.4% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 21.1% 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 Prep Elementary Cs is smaller than that campus by headcount and runs leaner classes (19.3:1 vs 22.6:1).
Mastery Prep Elementary Cs is a single-school charter district, so Mastery Prep Elementary Cs 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
How Mastery Prep Elementary Cs compares
Mastery Prep Elementary Cs on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.3:1 | ▲ 42% | 13.6:1 | 15.7:1 |
| Enrollment | 598 | top 30% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.3:1
Leaner classes than 19% of US schools, heavier class loads than most.
598
Bigger than 72% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
19.3:1
students per teacher
- 42% above state mean
Top 97% in Pennsylvania - lower ratio than 3% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
18.4%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$16,846
per pupil, district-wide
- below Pennsylvania avg of $17,970
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 598 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
African American 85.1%
Hispanic or Latino 10.9%
Two or More 3.2%
White 0.3%
Native Hawaiian / Pacific Islander 0.3%
Asian 0.2%
Largest group: African American at 85.1% of enrollment.
Student-body diversity index 26.3/100
Simpson diversity index - at 26.3, Mastery Prep Elementary Cs is less mixed than the Pennsylvania school average of 37.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Mastery Prep Elementary Cs, which includes Mastery Prep Elementary Cs.
$16,846
Per student
-6%
vs Pennsylvania
Avg $17,970
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 78.2%
State 0.7%
Federal 21.1%
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.
Similar elementary schools in Philadelphia
6 comparable elementary schools (grades K-5) serving the same city.
Northeast Community Propel Academy
Standard public school
1,783 students 22.6:1 students per teacher
Mayfair Sch
Standard public school
1,763 students 21:1 students per teacher
Solis-Cohen Solomon Sch
Standard public school
1,350 students 17.1:1 students per teacher
Mast Community Cs Iii
Standard public school
1,290 students 16.5:1 students per teacher
Moore J Hampton Sch
Standard public school
1,192 students 17:1 students per teacher
Farrell Louis H Sch
Standard public school
1,187 students 18:1 students per teacher
Similar elementary schools statewide
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.
Similar enrollment (~598 students)
Similar student-teacher ratio (~19.3:1)
Next steps
Verify locally before acting on Mastery Prep Elementary Cs's federal record.
- Compare Mastery Prep Elementary Cs against another school. Compare schools
- Mastery Prep Elementary Cs's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Mastery Prep Elementary Cs
How many students attend Mastery Prep Elementary Cs?
Mastery Prep Elementary Cs has 598 students enrolled. It is an elementary school in Philadelphia, PA.
What is the student-teacher ratio at Mastery Prep Elementary Cs?
The student-teacher ratio at Mastery Prep Elementary Cs is 19.3:1, which is 42% higher than the Pennsylvania average of 13.6:1 and 23% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Mastery Prep Elementary Cs?
The largest demographic group at Mastery Prep Elementary Cs is African American at 85.1% of enrollment, in Philadelphia, PA.
What is the Resource Investment Index for Mastery Prep Elementary Cs?
Mastery Prep Elementary Cs 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).
How does Mastery Prep Elementary Cs rank among elementary schools in Philadelphia?
By Resource Investment Index, Mastery Prep Elementary Cs 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.
Is Mastery Prep Elementary Cs a good school?
Mastery Prep Elementary Cs earns 27/100 on the Resource Investment Index, with class sizes larger than 97% 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.
What other schools are in Mastery Prep Elementary Cs?
None; Mastery Prep Elementary Cs is a single-school charter district, and Mastery Prep Elementary Cs is its only campus.
Related tools
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.