1
What's the vibe like in the hallways at Mastery CS John Wister Elementary right now?
Community prompt from u/allk12. Replies below.
Enrollment
506
Elementary
STATE 443
SCHOOL COMMUNITY·MASTERY CS JOHN WISTER ELEMENTARY·NCES 420088907599
Mastery CS John Wister Elementary
67 E Bringhurst Street, Philadelphia, PA 19144 · (215) 951-4003 · Philadelphia County
GRADES KG–05ELEMENTARY11-CITYCHARTERTITLE IREGULAR SCHOOL506 STUDENTS
D
allk12 Grade
Scored higher than 14% 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.
- DBeats 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
Student : Teacher
16.9:1
30 FTE teachers
STATE 13.1:1
Free / Reduced Lunch
98%
498 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
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 78 | 15% |
| Grade 1 | 79 | 16% |
| Grade 2 | 86 | 17% |
| Grade 3 | 82 | 16% |
| Grade 4 | 81 | 16% |
| Grade 5 | 100 | 20% |
This year's kindergarten class (78) is 22% smaller than its 5th grade class (100).
Student demographics
20%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 59% · US 70%
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
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
26.0%
PA avg 51.1% . +1.9pp since 2023
Math
24.0%
PA avg 43.0% . +5.6pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 26 of every 100 students at this school read and write at grade level and about 24 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 2 points since 2023, while math scores are up about 6 points.
PSSA + Keystone results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 26.0% | 24.0% |
| 2023-24 | 24.1% | 18.4% |
% 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 · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
25.0%
composite math + reading, all grades
Predicted
35.4%
based on PA schools with similar FRL share
Beats by
-10.4pp
below demographic expectation
What this means: About 25% 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 CS John Wister Elementary
Mastery CS John Wister Elementary's state test result (25.0% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mastery CS John Wister Elementary this school | 506 | 98.4% | 25.0% |
| Frederick Douglass Mastery CS Philadelphia | 528 | 99.4% | 13.6% |
| Guidon S Bluford Elementary School Philadelphia | 476 | 99.4% | 9.1% |
| Mastery CS - Mann Campus Philadelphia | 573 | 97.7% | 24.1% |
| Sharon Hill School Sharon Hill | 552 | 96.2% | 26.9% |
| Roosevelt Theodore Middle School Philadelphia | 400 | 99.3% | 10.1% |
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 CS John Wister Elementary ranks
Among elementary schools| Measure | This school | In Pennsylvania | In Philadelphia County |
|---|---|---|---|
| State test proficiency ranked highest first | 25.0% | #1,238 of 1,396 | #73 of 161 |
| Math proficiency ranked highest first | 24.0% | #1,240 of 1,511 ▲ 47 | #62 of 193 ▲ 6 |
| Reading proficiency ranked highest first | 26.0% | #1,264 of 1,511 ▲ 87 | #88 of 193 ▲ 19 |
| Enrollment ranked largest first | 506 | #512 of 1,638 | #83 of 194 |
| Students per teacher ranked fewest first | 16.9:1 | #1,455 of 1,528 | #168 of 189 |
| Diversity index ranked most diverse first | 19.7% | #1,194 of 1,531 | #141 of 189 |
| Free and reduced lunch ranked highest share first | 98.4% | #429 of 1,600 | #102 of 193 |
| Enrollment change since 2017-18 ranked fastest growth first | +0.4% | #430 of 450 | #46 of 48 |
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 2024-25Enrollment
506
+1 (+0%) vs 2020
Student : Teacher
16.9:1
was 16.8:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 506 | 30 | 16.9:1 | 98% (498) |
| 2023-24 | 497 | 31 | 16.0:1 | 99% (494) |
| 2022-23 | 513 | 28 | 18.3:1 | N/A |
| 2020-21 | 505 | 30 | 16.8:1 | 99% (500) |
| 2017-18 | 504 | 31 | 16.3:1 | 100% (503) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Mastery CS John Wister Elementary.
Since 2017-18: students unchanged (504 to 506); teachers down 3% (31 to 30).
About Mastery CS John Wister Elementary
Federal records list Mastery CS John Wister Elementary as an elementary school in Philadelphia, Pennsylvania. The school covers kindergarten through 5 and reported 506 students in 2024-25.
Mastery CS John Wister Elementary is its own local education agency in federal data.
At Mastery CS John Wister Elementary, 89% of students are Black. It is also 6% Hispanic and 4% multiracial. For comparison, the population of Philadelphia County is roughly 39% Black. The diversity index for Mastery CS John Wister Elementary is 20%. For US public schools as a whole it is 70%.
There are 30 full-time-equivalent teachers at Mastery CS John Wister Elementary, giving a ratio of 16.9:1. The school's 16.9:1 compares with an average of 13.1:1 for elementary schools in Pennsylvania. By family income, 98% of students are eligible for free or reduced-price lunch.
Mastery CS John Wister Elementary earns a D on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 14% of Pennsylvania public elementary schools.
Compared with Pennsylvania schools that have similar shares of low-income students, Mastery CS John Wister Elementary's results are 10.4 points below predicted: 25.0% against 35.4%.
The school is in Philadelphia County, where the median household earns about $61,953 a year, a bachelor's degree or higher is held by about 35% of adults, and the poverty rate is about 17%. Across Philadelphia County, 309 public schools serve about 182,005 students.
Straight-line distance to the nearest public school, Fitler Academics Plus, is about 0.5 miles. Around the school, at least 8 other public schools are within five miles. Among the 7 closest schools with test data, this one included, Mastery CS John Wister Elementary ranks 3rd on average proficiency.
The National Center for Education Statistics classifies the school's location as City: Large, meaning it is inside a principal city with a population of 250,000 or more. Mastery CS John Wister Elementary is a publicly funded charter school.
Enrollment in 2024-25 was 506, close to the 505 recorded in 2020-21.
The discussion board for Mastery CS John Wister Elementary is open to topics like pickup and drop-off, after-school programs, and teacher feedback. Teachers and staff are welcome to share updates too.
Philadelphia County at a glance
View full county profilePopulation
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
Related schools
Other schools in Philadelphia
- Northeast High SchoolHigh · 3,463 students
- Philadelphia Performing Arts CSCombined · 2,572 students
- Lincoln High SchoolHigh · 2,472 students
- Central High SchoolHigh · 2,329 students
- MaST Community CS IICombined · 1,875 students
- First Philadelphia Preparatory CSCombined · 1,831 students
Nearby schools
- Fitler Academics Plus0.5 mi · 159
- Kelly John B School0.6 mi · 365
- Mastery CS-Pickett Campus0.7 mi · 929
- Logan James School0.8 mi · 264
- Central High School0.9 mi · 2,329
- Mastery CS-Francis D. Pastorius Elementary1.1 mi · 647
Frequently asked questions
About Mastery CS John Wister ElementaryHow many students attend Mastery CS John Wister Elementary?
Mastery CS John Wister Elementary enrolls approximately 506 students in grades KG-05.
Is Mastery CS John Wister Elementary an elementary, middle, or high school?
Mastery CS John Wister Elementary is an elementary school covering grades KG-05.
What is the student-teacher ratio at Mastery CS John Wister Elementary?
The student-to-teacher ratio at Mastery CS John Wister Elementary is approximately 16.9:1 (30 FTE teachers).
What is the student diversity at Mastery CS John Wister Elementary?
Student demographics at Mastery CS John Wister Elementary are roughly 1% White, 6% Hispanic, 89% Black, 4% Two or more.
What district is Mastery CS John Wister Elementary in?
Mastery CS John Wister Elementary is part of Mastery CS John Wister Elementary.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.