Needs Improvement
#2685 of 2,842 schools in PA
Keystone Academy Cs
Elementary School · Keystone Academy CS
4521 Longshore Avenue, Philadelphia, PA 19135
Enrollment
663
Student-Teacher
15.4:1
Score
3.9
Grades
Kindergarten – 8th
Enrollment
663
Student-Teacher
15.4:1
Score
3.9
Grades
Kindergarten – 8th
Updated
2022-23
Updated 2022-23
How this school compares
In Philadelphia
#282 of 300
public schools
Pennsylvania elementary schools
#1,537 of 1,625
About Keystone Academy Cs
Keystone Academy CS is a charter school located in Philadelphia, Pennsylvania. Serving students from kindergarten through eighth grade, Keystone Academy CS offers an education to 663 students with a student-teacher ratio of 15.4:1. The school has 43 full-time equivalent teachers dedicated to supporting its diverse student body.
Academically, Keystone Academy CS ranks in the 20th percentile statewide and has room for improvement according to MySchoolScout’s metrics. In English Language Arts (ELA) and reading proficiency tests, about half of the students scored at or above grade level. However, only a quarter of the students met state standards in math, indicating areas where additional support may be needed.
Keystone Academy CS is situated within the heart of Philadelphia's urban landscape, offering its students access to a variety of city resources and cultural opportunities. Despite the challenges reflected in its academic scores, the school community remains committed to supporting student growth and development.
What Parents Should Know
Keystone Academy Cs is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
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Keystone Academy Cs — Students at Keystone Academy Cs score 36% proficient, which is below what's typical for similar communities (expected: 38%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
88.1%
Students qualifying for federal meal assistance
Test Scores PA PSSA (2023-24)
Based on 18 test records from PA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 3.3/10.
How Keystone Academy Cs Compares
See how Keystone Academy Cs performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 38% (2019) to 24.6% (2024). Reading/ELA proficiency has declined from 69% (2019) to 47.2% (2024).
Location
4521 Longshore Avenue, Philadelphia, PA 19135
Nearby Alternatives
Families considering Keystone Academy Cs may also want to explore other elementary schools in the area. HOLMESBURG CHRISTIAN ACADEMY (rated 8.0/10, 1.2 miles away), which scores notably higher. Another option is NORTHEAST CENTRAL CHRISTIAN SCHOOL (rated 7.0/10, 1.3 miles away), which scores notably higher. Additionally, BLESSED TRINITY REGIONAL CATHOLIC SCHOOL (rated 6.9/10, 0.9 miles away), which scores notably higher. For more schools in Philadelphia, see our Philadelphia schools guide .
Nearby Schools
20 within 1.8 mi| School | Distance | Rating |
|---|---|---|
| Disston Hamilton Sch Philadelphia | 0.2 mi | 5.8 |
| Forrest Edwin Sch Philadelphia | 0.6 mi | 5.8 |
| Mayfair Sch Philadelphia | 0.9 mi | 5.6 |
| Lincoln HS Philadelphia | 1.1 mi | 4.9 |
| BLESSED TRINITY REGIONAL CATHOLIC SCHOOL Philadelphia | 0.9 mi | 6.9 |
| Lawton Henry W Sch Philadelphia | 0.9 mi | 6.1 |
| Holme Thomas Sch Philadelphia | 1.3 mi | 5.1 |
| Allen Ethan Sch Philadelphia | 1.0 mi | 5.1 |
| Northeast Community Propel Academy Philadelphia | 1.3 mi | 3.6 |
| HOLMESBURG CHRISTIAN ACADEMY Philadelphia | 1.2 mi | 8.0 |
| NORTHEAST CENTRAL CHRISTIAN SCHOOL Philadelphia | 1.3 mi | 7.0 |
| New Foundations CS Philadelphia | 1.1 mi | 5.3 |
| Brown Joseph Sch Philadelphia | 1.5 mi | 4.8 |
| Solis-Cohen Solomon Sch Philadelphia | 1.6 mi | 4.6 |
| Sullivan James J Sch Philadelphia | 1.5 mi | 6.7 |
| FATHER JUDGE HIGH SCHOOL Philadelphia | 1.8 mi | 5.7 |
| Franklin Towne CHS Philadelphia | 1.8 mi | 4.0 |
| Palmyra High School Palmyra | 1.9 mi | 4.7 |
| Palmyra Middle School Palmyra | 1.9 mi | 5.7 |
| Maritime Academy CS Philadelphia | 1.8 mi | 4.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 19135 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$51,817
Median Home Value
$182,900
Median Rent
$1,197/mo
Population
34,234
College Educated
15.8%
Homeownership
62.2%
Avg Commute
34.8 min
Poverty Rate
23.5%
Median Age
33
Community Profile
The community surrounding Keystone Academy Cs has a median household income of $51,817. It is a community where 16% of adults hold a bachelor's degree or higher. The median home value in the area is $182,900, with a median rent of $1,197/month. The area has a poverty rate of 23.5%, indicating some economic challenges in the community. The average commute in the area is 35 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Cochran Primary Sch Williamsport, PA | 3.9 |
| Global Leadership Academy CS Philadelphia, PA | 3.9 |
| Jefferson El Sch Erie, PA | 3.9 |
| Lincoln CS York, PA | 3.9 |
| Melrose Sch Harrisburg, PA | 3.9 |
| Panther Valley El Sch Nesquehoning, PA | 3.9 |
Frequently Asked Questions
Common questions about Keystone Academy Cs
What grades does Keystone Academy Cs serve?
Keystone Academy Cs serves students in grades Kindergarten through 8th.
How many students attend Keystone Academy Cs?
Keystone Academy Cs has an enrollment of approximately 663 students.
What is the student-teacher ratio at Keystone Academy Cs?
The student-teacher ratio at Keystone Academy Cs is 15.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Keystone Academy Cs rank in PA?
Keystone Academy Cs is ranked #2685 out of 2,842 schools in PA.
What is Keystone Academy Cs's MySchoolScout rating?
Keystone Academy Cs has a composite rating of 3.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Keystone Academy Cs?
Based on the most recent state assessment data, Keystone Academy Cs has 24.9% math proficiency and 49.7% reading/ELA proficiency.
Is Keystone Academy Cs a charter school?
Yes, Keystone Academy Cs is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Keystone Academy Cs a Title I school?
No, Keystone Academy Cs is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Keystone Academy Cs?
88.1% of students at Keystone Academy Cs qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- City Safety
- High (5,504/100K)
FBI UCR 2024. City-level (Philadelphia). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 8th
- Enrollment
- 663
- Student-Teacher Ratio
- 15.4:1
- Teachers (FTE)
- 43
- Free/Reduced Lunch
- 88.1%
- Type
- regular
- Setting
- Large City
- County
- Philadelphia County
- Phone
- (215) 332-2111
- Data Year
- 2023–2024
Resources & Links
District
Keystone Academy CS- District Enrollment
- 663
- Schools in District
- 1
- Per-Pupil Spending
- $15,991
- District Rank
- #1 of 1
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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