Mastery CS John Wister Elementary
🇺🇸 Official data · 2025Philadelphia, Pennsylvania 19144 · Mastery CS John Wister Elementary
#1614 of 1,627 elementary schools in Pennsylvania
#49754 of 50,301 nationally
About Mastery CS John Wister Elementary
Mastery CS John Wister Elementary is a charter elementary located in Philadelphia, in the Mastery CS John Wister Elementary school district of Pennsylvania, United States. It caters for Grades K–5. In 2025 it enrolled 506 students. Publicly funded charter schools operating under a performance contract; free to attend.
Its Success Index (US) is 8.8 out of 100, placing it in the lower 50% of elementary schools in United States and 1614th of 1,627 ranked elementary schools in Pennsylvania. Its strongest component is students per teacher (29th percentile), and its weakest is math proficiency (1th percentile).
Other published figures: enrollment 506.
There are 292 schools in Philadelphia; Mastery CS John Wister Elementary ranks 268th of 275 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)5%
- Reading proficiency (30%)22%
- Community advantage (fewer free/reduced-price lunch) (25%)98.4%
- Students per teacher (15%)16.9
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Mastery CS John Wister Elementary by the official sources.
- Enrollment
- 506
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 98.4%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 16.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 22%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 5%
- Share of tested students proficient or above (all students, all grades).
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Schools near Mastery CS John Wister Elementary
Closest schools by straight-line distance, with their Success Index (US).
Fitler Academics Plus
Philadelphia · Public elementary · Grades K–8
159 students · 809 m away
Kelly John B Sch
Philadelphia · Public elementary · Grades K–5
365 students · 1.0 km away
Mastery CS-Pickett Campus
Philadelphia · Charter high · Grades 6–12
929 students · 1.2 km away
Logan James Sch
Philadelphia · Public elementary · Grades PK–5
264 students · 1.3 km away
Central HS
Philadelphia · Public high · Grades 9–12
2,329 students · 1.5 km away
Mastery CS-Francis D. Pastorius Elementary
Philadelphia · Charter elementary · Grades K–8
647 students · 1.7 km away
Pennell Joseph Sch
Philadelphia · Public elementary · Grades PK–5
301 students · 1.8 km away
Roosevelt Theodore MS
Philadelphia · Public elementary · Grades K–8
400 students · 1.8 km away
Steel Edward Sch
Philadelphia · Public elementary · Grades PK–8
379 students · 1.9 km away
Girls HS
Philadelphia · Public high · Grades 9–12
592 students · 1.9 km away
Similar schools
Charter elementary schools in Pennsylvania with a comparable Enrollment.
Folk Arts-Cultural Treasures CS
Philadelphia · Charter elementary · Grades K–8
501 students
Seven Generations CS
Emmaus · Charter elementary · Grades K–8
497 students
Penn Hills CS of Entrepreneurship
Pittsburgh · Charter elementary · Grades K–8
527 students
Frederick Douglass Mastery CS
Philadelphia · Charter elementary · Grades K–8
528 students
Universal Alcorn CS
Philadelphia · Charter elementary · Grades K–8
467 students
Vision Academy CS
East Lansdowne · Charter elementary · Grades PK–8
547 students
Frequently asked questions
Is Mastery CS John Wister Elementary a good school?
Mastery CS John Wister Elementary has a Success Index (US) of 8.8 out of 100 (Lower 50% of elementary schools in United States) and ranks #1614 of 1,627 in Pennsylvania. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Mastery CS John Wister Elementary rank in Pennsylvania?
Mastery CS John Wister Elementary ranks #1614 of 1,627 elementary schools in Pennsylvania and #49754 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Mastery CS John Wister Elementary?
Mastery CS John Wister Elementary had 506 students in 2025.
Is Mastery CS John Wister Elementary a elementary school or a high school?
Mastery CS John Wister Elementary is classified as a elementary covering Grades K–5. It is a charter school.
What other schools are near Mastery CS John Wister Elementary?
There are 10 schools within 15 km of Mastery CS John Wister Elementary; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.