Keystone Academy CS
🇺🇸 Official data · 2025Philadelphia, Pennsylvania 19135 · Keystone Academy CS
#1067 of 1,627 elementary schools in Pennsylvania
#27968 of 50,301 nationally
About Keystone Academy CS
Keystone Academy CS is a charter elementary located in Philadelphia, in the Keystone Academy CS school district of Pennsylvania, United States. It caters for Grades K–8. In 2025 it enrolled 642 students. Publicly funded charter schools operating under a performance contract; free to attend.
Its Success Index (US) is 45.9 out of 100, placing it in the lower 50% of elementary schools in United States and 1067th of 1,627 ranked elementary schools in Pennsylvania. Its strongest component is reading proficiency (83th percentile), and its weakest is community advantage (fewer free/reduced-price lunch) (17th percentile).
Other published figures: enrollment 642.
There are 292 schools in Philadelphia; Keystone Academy CS ranks 32nd of 275 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)38%
- Reading proficiency (30%)69%
- Community advantage (fewer free/reduced-price lunch) (25%)91%
- Students per teacher (15%)15.3
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 Keystone Academy CS by the official sources.
- Enrollment
- 642
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 91%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 15.3
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 69%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 38%
- Share of tested students proficient or above (all students, all grades).
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Keystone Academy CS
Closest schools by straight-line distance, with their Success Index (US).
Disston Hamilton Sch
Philadelphia · Public elementary · Grades K–8
737 students · 287 m away
Forrest Edwin Sch
Philadelphia · Public elementary · Grades PK–5
841 students · 999 m away
Mayfair Sch
Philadelphia · Public elementary · Grades K–8
1,763 students · 1.5 km away
Lawton Henry W Sch
Philadelphia · Public elementary · Grades PK–5
571 students · 1.5 km away
Allen Ethan Sch
Philadelphia · Public elementary · Grades K–8
957 students · 1.6 km away
Lincoln HS
Philadelphia · Public high · Grades 9–12
2,472 students · 1.8 km away
New Foundations CS
Philadelphia · Charter other · Grades K–12
1,529 students · 1.8 km away
Holme Thomas Sch
Philadelphia · Public elementary · Grades PK–8
850 students · 2.0 km away
Northeast Community Propel Academy
Philadelphia · Public elementary · Grades K–8
1,783 students · 2.1 km away
Sullivan James J Sch
Philadelphia · Public elementary · Grades K–5
373 students · 2.4 km away
Similar schools
Charter elementary schools in Pennsylvania with a comparable Enrollment.
Mastery CS-Francis D. Pastorius Elementary
Philadelphia · Charter elementary · Grades K–8
647 students
Eugenio Maria DE Hostos CS
Philadelphia · Charter elementary · Grades K–8
631 students
Lincoln CS
York · Charter elementary · Grades K–8
653 students
West Phila. Achievement CES
Philadelphia · Charter elementary · Grades K–5
654 students
Discovery CS
Philadelphia · Charter elementary · Grades K–8
626 students
Montessori Regional CS
Erie · Charter elementary · Grades K–8
626 students
Frequently asked questions
Is Keystone Academy CS a good school?
Keystone Academy CS has a Success Index (US) of 45.9 out of 100 (Lower 50% of elementary schools in United States) and ranks #1067 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 Keystone Academy CS rank in Pennsylvania?
Keystone Academy CS ranks #1067 of 1,627 elementary schools in Pennsylvania and #27968 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Keystone Academy CS?
Keystone Academy CS had 642 students in 2025.
Is Keystone Academy CS a elementary school or a high school?
Keystone Academy CS is classified as a elementary covering Grades K–8. It is a charter school.
What other schools are near Keystone Academy CS?
There are 10 schools within 15 km of Keystone Academy CS; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.