Enrollment
506
Pennsylvania · 2024-25 NCES data
2024-25 NCES data Elementary school (grades K-5) NCES 420088907599 Charter school
Mastery Cs John Wister Elementary — Philadelphia, PA
Federal NCES profile for Mastery Cs John Wister Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 14/100.
👥 Class size 27
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 0
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Mastery Cs John Wister Elementary · Pennsylvania
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
28.0
Federal CCD staff survey
Students per teacher
18.3:1
vs 13.5:1 Pennsylvania avg
+36% vs state
Student-teacher ratio in context
How Mastery Cs John Wister Elementary compares with Pennsylvania and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Mastery Cs John Wister Elementary reports 506 enrolled students to the National Center for Education Statistics (NCES) alongside 28.0 full-time-equivalent teachers, producing a 18.3:1 student-teacher ratio. That figure sits 36% above the Pennsylvania state mean of 13.5:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 15% higher, a useful calibration for families comparing districts across state lines.
Counselor coverage works out to roughly 506 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 42.9% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Mastery Cs John Wister Elementary spends $21,947 per pupil district-wide, below the Pennsylvania average of $22,745 and above the national average of $19,490. Revenue comes 74.1% from local sources (property taxes), 0.1% from the state, and 25.8% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 14/100 (F), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Mastery Cs John Wister Elementary compares
Cross-validating school-level NCES values against Pennsylvania state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.3:1 | ▲ 36% | 13.5:1 | 15.9:1 |
| Enrollment | 506 | top 57% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Staffing depth
18.3:1
students per teacher
— 36% above state mean
Top 96% in Pennsylvania — lower ratio than 4% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
42.9%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$21,947
per pupil, district-wide
— below Pennsylvania avg of $22,745
Above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 506 students — the combined health-and-guidance staffing load for this school.
Discipline context
21
in-school suspensions + 15 out-of-school
Suspension rate: 4.2 per 100 students. Combined in-school and out-of-school rate: 7.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 506 Top 57% in Pennsylvania — larger than 43% of 2,930 state schools
Teachers (FTE) 28.0
Students per teacher 18.3:1 +36% vs state
Free-lunch eligible —
NCES ID 420088907599
Student demographics
African American 89.3%
Hispanic or Latino 5.5%
Two or More 4.0%
White 1.0%
American Indian / Alaska Native 0.2%
Largest group: African American at 89.3% of enrollment.
Programs & staff
Counselors (FTE) 1.0
Students per counselor 506:1
Discipline & special education
Chronically absent 42.9%
In-school suspensions 21
Out-of-school suspensions 15
Funding & spending
District-wide per-pupil expenditure for Mastery Cs John Wister Elementary, which includes Mastery Cs John Wister Elementary.
$21,947
Per student
-4%
vs Pennsylvania
Avg $22,745
+13%
vs U.S.
Avg $19,490
Revenue mix
Local 74.1%
State 0.1%
Federal 25.8%
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.
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 21.9:1 students per teacher
Mayfair Sch
Standard public school
1,763 students 20:1 students per teacher
Solis-Cohen Solomon Sch
Standard public school
1,350 students 15.8:1 students per teacher
Mast Community Cs Iii
Standard public school
1,290 students 15.6:1 students per teacher
Moore J Hampton Sch
Standard public school
1,192 students 16.2:1 students per teacher
Farrell Louis H Sch
Standard public school
1,187 students 16.7:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Mastery Cs John Wister Elementary
How many students attend Mastery Cs John Wister Elementary?
Mastery Cs John Wister Elementary has 506 students enrolled. It is a elementary school in Philadelphia, PA.
What is the student-teacher ratio at Mastery Cs John Wister Elementary?
The student-teacher ratio at Mastery Cs John Wister Elementary is 18.3:1, which is 36% higher than the Pennsylvania average of 13.5:1 and 15% higher than the national average of 15.9:1.
What is the racial and ethnic makeup of Mastery Cs John Wister Elementary?
The largest demographic group at Mastery Cs John Wister Elementary is African American at 89.3%. The school serves a diverse student body in Philadelphia, PA.
What is the Resource Investment Index for Mastery Cs John Wister Elementary?
Mastery Cs John Wister Elementary has a Resource Investment Index of 14/100 (F) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.