Enrollment
647
Pennsylvania · 2024-25 NCES data
Elementary school (grades K-5) · Philadelphia, PA
Mastery Cs-Francis D. Pastorius Elementa
Federal NCES profile for Mastery Cs-Francis D. Pastorius Elementa, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
2024-25 NCES dataElementary school (grades K-5)NCES 420087407515Charter school
👥 S:T ratio 34
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 17
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mastery Cs-Francis D. Pastorius Elementa earns 20/100 on the Resource Investment Index, with class sizes larger than 89% of Pennsylvania schools.
- #115 of 131
- elementary schools in Philadelphia · Resource Index
- 20
- Resource Index · Lower
- 16.6:1
- large classes for Pennsylvania
- 647
- students enrolled
Mastery Cs-Francis D. Pastorius Elementa has class sizes larger than 89% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Mastery Cs-Francis D. Pastorius Elementa ranks #115 of 131 elementary schools in Philadelphia, PA.
School address
NCES ID 420087407515 Verify on NCES CCD record →
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
16.6:1
vs 13.6:1 Pennsylvania avg
+22% vs state
Student-teacher ratio in context
How Mastery Cs-Francis D. Pastorius Elementa compares with Pennsylvania and U.S. medians
What stands out at Mastery Cs-Francis D. Pastorius Elementa
Mastery Cs-Francis D. Pastorius Elementa is a mid-sized charter elementary school in Philadelphia, Pennsylvania, enrolling 647 students.
Class loads run heavy: 16.6:1 is larger than about 89% of Pennsylvania schools and 22% above the 13.6:1 state mean, so each teacher carries more students than is typical.
Enrollment of 647 puts it in the larger third of Pennsylvania schools by headcount.
Its Resource Investment Index trails 98% 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 (88% of enrollment) (diversity index 23/100).
Counselor access is stretched at roughly 647 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 33.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 22.5% 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-Francis D. Pastorius Elementa is smaller than that campus by headcount and runs leaner classes (16.6:1 vs 22.6:1).
Mastery Cs-Francis D. Pastorius Elementary is a single-school charter district, so Mastery Cs-Francis D. Pastorius Elementa 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 Cs-Francis D. Pastorius Elementa compares
Mastery Cs-Francis D. Pastorius Elementa on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.6:1 | ▲ 22% | 13.6:1 | 15.7:1 |
| Enrollment | 647 | top 25% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.6:1
Leaner classes than 33% of US schools, heavier class loads than most.
647
Bigger than 77% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16.6:1
students per teacher
- 22% above state mean
Top 89% in Pennsylvania - lower ratio than 11% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
33.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,005
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 647 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 9 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.4 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 87.5%
Hispanic or Latino 5.9%
Two or More 4.5%
American Indian / Alaska Native 1.4%
White 0.5%
Native Hawaiian / Pacific Islander 0.3%
Largest group: African American at 87.5% of enrollment.
Student-body diversity index 22.9/100
Simpson diversity index - at 22.9, Mastery Cs-Francis D. Pastorius Elementa is less mixed than the Pennsylvania school average of 37.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Mastery Cs-Francis D. Pastorius Elementary, which includes Mastery Cs-Francis D. Pastorius Elementa.
$17,005
Per student
-5%
vs Pennsylvania
Avg $17,970
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 77.2%
State 0.3%
Federal 22.5%
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 (~647 students)
Similar student-teacher ratio (~16.6:1)
Next steps
Verify locally before acting on Mastery Cs-Francis D. Pastorius Elementa's federal record.
- Compare Mastery Cs-Francis D. Pastorius Elementa against another school. Compare schools
- Mastery Cs-Francis D. Pastorius Elementary'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 Cs-Francis D. Pastorius Elementa
How many students attend Mastery Cs-Francis D. Pastorius Elementa?
Mastery Cs-Francis D. Pastorius Elementa has 647 students enrolled. It is an elementary school in Philadelphia, PA.
What is the student-teacher ratio at Mastery Cs-Francis D. Pastorius Elementa?
The student-teacher ratio at Mastery Cs-Francis D. Pastorius Elementa is 16.6:1, which is 22% higher than the Pennsylvania average of 13.6:1 and 6% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Mastery Cs-Francis D. Pastorius Elementa?
The largest demographic group at Mastery Cs-Francis D. Pastorius Elementa is African American at 87.5% of enrollment, in Philadelphia, PA.
What is the Resource Investment Index for Mastery Cs-Francis D. Pastorius Elementa?
Mastery Cs-Francis D. Pastorius Elementa has a Resource Investment Index of 20/100 (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 Cs-Francis D. Pastorius Elementa rank among elementary schools in Philadelphia?
By Resource Investment Index, Mastery Cs-Francis D. Pastorius Elementa ranks #115 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 Cs-Francis D. Pastorius Elementa a good school?
Mastery Cs-Francis D. Pastorius Elementa earns 20/100 on the Resource Investment Index, with class sizes larger than 89% 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 Cs-Francis D. Pastorius Elementary?
None; Mastery Cs-Francis D. Pastorius Elementary is a single-school charter district, and Mastery Cs-Francis D. Pastorius Elementa is its only campus.
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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.