Other / mixed grade configuration · Philadelphia, PA
Mastery Cs-Hardy Williams
Federal NCES profile for Mastery Cs-Hardy Williams, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 25/100.
The verdict
Mastery Cs-Hardy Williams earns 25/100 on the Resource Investment Index, with class sizes larger than 95% of Pennsylvania schools. It is also less racially and ethnically mixed than most Pennsylvania schools.
- #90 of 106
- schools in Philadelphia · Resource Index
- 25
- Resource Index · Lower
- 18.2:1
- large classes for Pennsylvania
- 1,253
- students enrolled
Mastery Cs-Hardy Williams has class sizes larger than 95% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Mastery Cs-Hardy Williams ranks #90 of 106 schools in Philadelphia, PA.
School address
NCES ID 420006200504 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-25 students YoY
Mastery Cs-Hardy Williams held near 1,190 students from 2022-23 to 2023-24 (-25 headcount).
Teacher FTE lost 69.3 → 68.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-25 students YoY 420006200504 · Philadelphia, PA Other · MID · CHARTER
1,253 enr · 18.2:1 · RII 25
Nearest enrollment peer: James C Neill El (1,253 students)
Mastery Cs-Hardy Williams held near 1,190 students from 2022-23 to 2023-24 (-25 headcount). Teacher FTE lost 69.3 → 68.0 across the same CCD years. Read with this school → · District book → · Pennsylvania schools → · Find another →
How Mastery Cs-Hardy Williams compares
Mastery Cs-Hardy Williams held steady on CCD headcount: ratios and free-lunch share vs Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.2:1 | ▲ 34% | 13.6:1 | 15.7:1 |
| Enrollment | 1,253 | top 6% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators methodology
Student demographics
Largest group: African American at 94.7% of enrollment.
Simpson diversity index - at 10.2, Mastery Cs-Hardy Williams is less mixed than the Pennsylvania school average of 37.3.
Programs
District finance for Mastery Cs-Hardy Williams reports $16,984 per pupil (NCES F-33) - open the district page for the full revenue mix.
Similar other schools in Philadelphia
6 comparable other schools (grades Mixed) serving the same city.
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,253 students)
Frequently asked questions about Mastery Cs-Hardy Williams
How many students attend Mastery Cs-Hardy Williams?
Mastery Cs-Hardy Williams has 1,253 students enrolled. It is a public school in Philadelphia, PA. CCD year-over-year: 1,215 (2022-23) → 1,190 (2023-24), nearly flat (-25).
What is the student-teacher ratio at Mastery Cs-Hardy Williams?
The student-teacher ratio at Mastery Cs-Hardy Williams is 18.2:1, which is 34% higher than the Pennsylvania average of 13.6:1 and 16% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Mastery Cs-Hardy Williams?
The largest demographic group at Mastery Cs-Hardy Williams is African American at 94.7% of enrollment, in Philadelphia, PA.
What is the Resource Investment Index for Mastery Cs-Hardy Williams?
Mastery Cs-Hardy Williams has a Resource Investment Index of 25/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mastery Cs-Hardy Williams rank among schools in Philadelphia?
By Resource Investment Index, Mastery Cs-Hardy Williams ranks #90 of 106 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 schools in Philadelphia on the city page.
What other schools are in Mastery Cs-Hardy Williams?
None; Mastery Cs-Hardy Williams is a single-school charter district, and Mastery Cs-Hardy Williams is its only campus.