Elementary school (grades K-5) · Philadelphia, PA
Mastery Cs-Clymer Elementary
Federal NCES profile for Mastery Cs-Clymer Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
The verdict
Mastery Cs-Clymer Elementary earns 23/100 on the Resource Investment Index, with class sizes near the Pennsylvania median.
- #103 of 131
- elementary schools in Philadelphia · Resource Index
- 23
- Resource Index · Lower
- 13.5:1
- students per teacher
- 419
- students enrolled
Mastery Cs-Clymer Elementary has class sizes near the Pennsylvania median. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Mastery Cs-Clymer Elementary ranks #103 of 131 elementary schools in Philadelphia, PA.
School address
NCES ID 420084007400 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+3 students YoY
Mastery Cs-Clymer Elementary held near 451 students from 2022-23 to 2023-24 (+3 headcount).
Teacher FTE lost 31.0 → 29.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+3 students YoY 420084007400 · Philadelphia, PA Elementary · SMALL · CHARTER
419 enr · 13.5:1 · RII 23
Nearest enrollment peer: Sycamore Valley Academy (419 students)
Mastery Cs-Clymer Elementary held near 451 students from 2022-23 to 2023-24 (+3 headcount). Teacher FTE lost 31.0 → 29.0 across the same CCD years. Read with this school → · District book → · Pennsylvania schools → · Find another →
How Mastery Cs-Clymer Elementary compares
Mastery Cs-Clymer Elementary 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 | 13.5:1 | ▼ 1% | 13.6:1 | 15.7:1 |
| Enrollment | 419 | top 57% | - | - |
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 80.7% of enrollment.
Simpson diversity index - at 32.9, Mastery Cs-Clymer Elementary is less mixed than the Pennsylvania school average of 37.3.
Programs
District finance for Mastery Cs-Clymer Elementary reports $20,007 per pupil (NCES F-33) - open the district page for the full revenue mix.
Similar elementary schools in Philadelphia
6 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary 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 (~419 students)
Frequently asked questions about Mastery Cs-Clymer Elementary
How many students attend Mastery Cs-Clymer Elementary?
Mastery Cs-Clymer Elementary has 419 students enrolled. It is an elementary school in Philadelphia, PA. CCD year-over-year: 448 (2022-23) → 451 (2023-24), nearly flat (+3).
What is the student-teacher ratio at Mastery Cs-Clymer Elementary?
The student-teacher ratio at Mastery Cs-Clymer Elementary is 13.5:1, which is 1% lower than the Pennsylvania average of 13.6:1 and 14% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Mastery Cs-Clymer Elementary?
The largest demographic group at Mastery Cs-Clymer Elementary is African American at 80.7% of enrollment, in Philadelphia, PA.
What is the Resource Investment Index for Mastery Cs-Clymer Elementary?
Mastery Cs-Clymer Elementary has a Resource Investment Index of 23/100 (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-Clymer Elementary rank among elementary schools in Philadelphia?
By Resource Investment Index, Mastery Cs-Clymer Elementary ranks #103 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.
What other schools are in Mastery Cs-Clymer Elementary?
None; Mastery Cs-Clymer Elementary is a single-school charter district, and Mastery Cs-Clymer Elementary is its only campus.