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SCHOOL COMMUNITY·MASTERY PREP ELEMENTARY CS·NCES 420090007662

Mastery Prep Elementary CS

1801 W. Pike Street, Philadelphia, PA 19140 · (215) 866-0067 · Philadelphia County
GRADES KG–06ELEMENTARY11-CITYCHARTERTITLE IREGULAR SCHOOL598 STUDENTS
C-
allk12 Grade
Scored higher than 15% of Pennsylvania public elementary schools
  • DTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Pennsylvania public elementary schools

Enrollment
598
Elementary
STATE 443
Student : Teacher
16.2:1
37 FTE teachers
STATE 13.1:1
Free / Reduced Lunch
99%
595 students
STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten8214%
Grade 18715%
Grade 28715%
Grade 38114%
Grade 48214%
Grade 58614%
Grade 69316%

This year's kindergarten class (82) is 12% smaller than its 6th grade class (93).

Student demographics
26%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 59% · US 70%
White
20%
STATE 60% · US 43%
Hispanic
6511%
STATE 16% · US 30%
Black
50985%
STATE 14% · US 15%
Asian
10%
STATE 5% · US 6%
Two+
193%
STATE 5% · US 5%
Pacific Islander
20%
STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
30351%
Female
29549%

Discussions

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Test scores

PSSA + Keystone 2024-25 . % Proficient or Advanced
English Language Arts
31.3%
PA avg 51.1% . +6.6pp since 2023
Math
19.2%
PA avg 43.0% . +1.3pp since 2023

What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 31 of every 100 students at this school read and write at grade level and about 19 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are up about 7 points since 2023, while math scores are up about 1 points.

PSSA + Keystone results by year

School yearEnglish Language ArtsMath
2024-2531.3%19.2%
2023-2424.7%17.9%
% Proficient or Advanced, all students and all tested grades.
Source: PSSA + Keystone. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
25.9%
composite math + reading, all grades
Predicted
35.0%
based on PA schools with similar FRL share
Beats by
-9.0pp
below demographic expectation

What this means: About 26% of students here test proficient in math and reading, compared with the roughly 35% typical for Pennsylvania schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Pennsylvania's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Mastery Prep Elementary CS

Mastery Prep Elementary CS's state test result (25.9% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Mastery Prep Elementary CS this school59899.5%25.9%
Mastery CS - Mann Campus
Philadelphia
57397.7%24.1%
Mastery CS-Francis D. Pastorius Elementary
Philadelphia
64799.5%20.9%
Sharon Hill School
Sharon Hill
55296.2%26.9%
Frederick Douglass Mastery CS
Philadelphia
52899.4%13.6%
KIPP North Philadelphia CS
Philadelphia
68398.2%11.2%
Matched among Pennsylvania elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Mastery Prep Elementary CS ranks

Among elementary schools
MeasureThis schoolIn PennsylvaniaIn Philadelphia County
State test proficiency
ranked highest first
25.9%#1,230 of 1,396#70 of 161
Math proficiency
ranked highest first
19.2%#1,293 of 1,511
no change
#74 of 193
▼ 4
Reading proficiency
ranked highest first
31.3%#1,178 of 1,511
▲ 165
#64 of 193
▲ 38
Enrollment
ranked largest first
598#265 of 1,638#58 of 194
Students per teacher
ranked fewest first
16.2:1#1,404 of 1,528#157 of 189
Diversity index
ranked most diverse first
26.3%#1,057 of 1,531#118 of 189
Free and reduced lunch
ranked highest share first
99.5%#336 of 1,600#83 of 193
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
598
+192 (+47%) vs 2020
Student : Teacher
16.2:1
was 21.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-255983716.2:199% (595)
2023-246003020.0:1100% (597)
2022-235493117.7:1N/A
2020-214061921.4:199% (403)
Source: NCES Common Core of Data. Rows are the federal collections on file for Mastery Prep Elementary CS.

About Mastery Prep Elementary CS

Philadelphia, Pennsylvania, is home to Mastery Prep Elementary CS, a medium-sized elementary school. Students in kindergarten through 6 attend the school, which enrolls 598 students. For comparison, elementary schools in Pennsylvania average about 443 students.

The school serves as its own district in federal records.

Mastery Prep Elementary CS's enrollment is 85% Black. Next come 11% Hispanic and 3% multiracial. The county population is about 39% Black. Mastery Prep Elementary CS's diversity index is 26%, against a US figure of 70%.

Its 37 full-time-equivalent teachers give the school a ratio of 16.2:1. This ratio sits 3.1 above the 13.1:1 average for elementary schools in Pennsylvania. Free or reduced-price lunch eligibility is 99%.

The allk12 Grade for Mastery Prep Elementary CS is C-. Compared with Pennsylvania public elementary schools, the school scored higher than 15% on a mix of test scores, poverty-adjusted results, and recent trend.

Compared with Pennsylvania schools that have similar shares of low-income students, Mastery Prep Elementary CS's results are 9.0 points below predicted: 25.9% against 35.0%.

Among Philadelphia County residents, the median household income is $61,953, 35% of adults hold a bachelor's degree or higher, and about 17% of residents live below the federal poverty line. Mastery Prep Elementary CS is one of 309 public schools in the county.

Nearby, Mastery CS-Gratz Campus is less than a tenth of a mile away. There are at least 8 more public schools inside five miles. Mastery Prep Elementary CS's average proficiency of 25.9% compares with 18.9% for its nearest scored neighbors.

Federal data place Mastery Prep Elementary CS in the City: Large locale, which means it is inside a principal city with a population of 250,000 or more. Federal records list Mastery Prep Elementary CS as a charter school.

The school's enrollment figures are 406 for 2020-21 and 598 for 2024-25. Differences this large can reflect a change in grade levels, a boundary change, or a merger. Its ratio of students to teachers was 21.4:1 in 2020-21, and 16.2:1 in 2024-25.

The Mastery Prep Elementary CS community page is open for posts about sports tryouts, band and choir, and theater. Posting is open to anyone connected to the school.

Philadelphia County at a glance

View full county profile
Population
1,579,706
Census ACS
Median income
$61,953
Household, ACS
Bachelor's+
35%
Adults 25+
Poverty rate
17%
Below federal line
Schools in county
309
182,005 students

Quick facts

School name
Mastery Prep Elementary CS
District
Mastery Prep Elementary CS
Address
1801 W. Pike Street, Philadelphia, PA 19140
Phone
(215) 866-0067
County
Philadelphia County
Level
Elementary
Grade range
KG–06
Total enrollment
598
Teachers (FTE)
37
Student–teacher ratio
16.2:1
Free and reduced lunch
595 (99%)
Locale
11-City: Large
NCES ID
420090007662
Charter school
Yes
Virtual school
No

Related schools

Other schools in Philadelphia
Nearby schools

Frequently asked questions

About Mastery Prep Elementary CS
How large is Mastery Prep Elementary CS?
Mastery Prep Elementary CS enrolls approximately 598 students in grades KG-06.
Is Mastery Prep Elementary CS an elementary, middle, or high school?
Mastery Prep Elementary CS is an elementary school covering grades KG-06.
How many teachers does Mastery Prep Elementary CS have?
Mastery Prep Elementary CS employs 37 FTE teachers, for a student-to-teacher ratio of 16.2:1.
What is the student diversity at Mastery Prep Elementary CS?
Student demographics at Mastery Prep Elementary CS are roughly 0% White, 11% Hispanic, 85% Black, 0% Asian, 3% Two or more.
What district is Mastery Prep Elementary CS in?
Mastery Prep Elementary CS is part of Mastery Prep Elementary CS.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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