Enrollment
226
Elementary
STATE 443
SCHOOL COMMUNITY·PHILADELPHIA MONTESSORI CS·NCES 420013000849
Philadelphia Montessori CS
2227 Island Rd, Philadelphia, PA 19142 · (215) 365-4011 · Philadelphia County
GRADES PK–06ELEMENTARY11-CITYCHARTERTITLE IREGULAR SCHOOL226 STUDENTS
D
allk12 Grade
Scored higher than 8% 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
10.8:1
21 FTE teachers
STATE 13.1:1
Free / Reduced Lunch
99%
223 students
STATE 75%
Community
0
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 | 44 | 19% |
| Grade 1 | 44 | 19% |
| Grade 2 | 43 | 19% |
| Grade 3 | 47 | 21% |
| Grade 4 | 48 | 21% |
This year's kindergarten class (44) is 8% smaller than its 4th grade class (48).
Student demographics
13%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
17.6%
PA avg 51.1% . +1.7pp since 2023
Math
11.1%
PA avg 43.0% . +4.3pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 18 of every 100 students at this school read and write at grade level and about 11 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 4 points.
PSSA + Keystone results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 17.6% | 11.1% |
| 2023-24 | 15.9% | 6.8% |
% 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
18.5%
composite math + reading, all grades
Predicted
35.3%
based on PA schools with similar FRL share
Beats by
-16.8pp
below demographic expectation
What this means: About 19% 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 Philadelphia Montessori CS
Philadelphia Montessori CS's state test result (18.5% proficient) is higher than 3 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Philadelphia Montessori CS this school | 226 | 98.7% | 18.5% |
| Gideon Edward School Philadelphia | 221 | 94.6% | 11.2% |
| Propel CS-Hazelwood Pittsburgh | 230 | 96.5% | 4.8% |
| Samuel Gompers School Philadelphia | 238 | 100.0% | 19.7% |
| McMichael Morton School Philadelphia | 285 | 98.2% | 10.0% |
| Pittsburgh Lincoln K-5 Pittsburgh | 186 | 100.0% | 33.0% |
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 Philadelphia Montessori CS ranks
Among elementary schools| Measure | This school | In Pennsylvania | In Philadelphia County |
|---|---|---|---|
| State test proficiency ranked highest first | 18.5% | #1,308 of 1,396 | #106 of 161 |
| Math proficiency ranked highest first | 11.1% | #1,405 of 1,511 ▲ 36 | #122 of 193 ▲ 20 |
| Reading proficiency ranked highest first | 17.6% | #1,388 of 1,511 ▲ 63 | #132 of 193 ▲ 28 |
| Enrollment ranked largest first | 226 | #1,472 of 1,638 | #181 of 194 |
| Students per teacher ranked fewest first | 10.8:1 | #165 of 1,528 | #41 of 189 |
| Diversity index ranked most diverse first | 12.6% | #1,361 of 1,531 | #172 of 189 |
| Free and reduced lunch ranked highest share first | 98.7% | #417 of 1,600 | #98 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 2024-25Enrollment
226
+36 (+19%) vs 2020
+56% since 2010-11, when it was 145
Student : Teacher
10.8:1
was 7.3:1
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 | 226 | 21 | 10.8:1 | 99% (223) |
| 2023-24 | 262 | 21 | 12.5:1 | 99% (259) |
| 2022-23 | 236 | 29.5 | 8.0:1 | N/A |
| 2020-21 | 190 | 26 | 7.3:1 | 98% (187) |
| 2017-18 | 184 | 8.1 | 22.7:1 | N/A |
| 2015-16 | 172 | 13 | 13.2:1 | N/A |
| 2010-11 | 145 | 16 | 9.1:1 | 78% (113) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Philadelphia Montessori CS.
Since 2017-18: students up 23% (184 to 226); teachers up 159% (8.1 to 21).
About Philadelphia Montessori CS
Students in Philadelphia, Pennsylvania, attend Philadelphia Montessori CS, a low-enrollment elementary school. Its enrollment is 226 students, spread over pre-K through 6. That compares with an average of about 443 students for elementary schools in Pennsylvania.
Philadelphia Montessori CS operates as its own local education agency.
At Philadelphia Montessori CS, 93% of students are Black. Other students are 4% Hispanic and 3% multiracial. That is higher than the 39% Black share among all Philadelphia County residents. Measured by the diversity index, the student body scores 13%.
Philadelphia Montessori CS reports a ratio of 10.8 students per teacher, from 21 full-time-equivalent teachers. The gap from the 13.1:1 average for elementary schools in Pennsylvania is 2.3 students per teacher. Student poverty is often measured by lunch eligibility; at Philadelphia Montessori CS, 99% qualify for free or reduced-price lunch.
Philadelphia Montessori CS holds a D allk12 Grade, placing it above 8% of Pennsylvania public elementary schools.
On a poverty-adjusted basis, Philadelphia Montessori CS falls in the middle 80% of Pennsylvania schools: 18.5% actual against 35.3% predicted.
In the wider Philadelphia County area, the median household earns about $61,953 a year, a bachelor's degree or higher is held by about 35% of adults, and the share of residents below the poverty line is 17%. Philadelphia Montessori CS shares Philadelphia County with 308 other public schools.
Southwest Leadership Academy CS is about 0.2 miles from Philadelphia Montessori CS, the shortest distance to any other public school. Counting only straight-line distance, at least 8 other public schools are within five miles. Philadelphia Montessori CS places 3rd of 7 on proficiency among the closest schools that report scores.
Under the NCES locale system, Philadelphia Montessori CS is City: Large. The school is a charter school, funded with public money and operated under a charter agreement.
Over the 4 years from 2020-21 to 2024-25, enrollment increased 19%. The school's ratio increased from 7.3:1 to 10.8:1 between 2020-21 and 2024-25.
This community page is for conversations about athletics, class schedules, and weather closures. You can also rate the school on this page.
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
- Southwest Leadership Academy CS0.2 mi · 670
- Patterson John M School0.5 mi · 391
- Colwyn Elementary School0.5 mi · 135
- Walnut Street Elementary School0.6 mi · 255
- Penrose School0.6 mi · 360
- Penn Wood Middle School0.7 mi · 667
Frequently asked questions
About Philadelphia Montessori CSWhat is the total enrollment at Philadelphia Montessori CS?
Philadelphia Montessori CS enrolls approximately 226 students in grades PK-06.
What grades does Philadelphia Montessori CS serve?
Philadelphia Montessori CS serves grades PK-06.
What is the student-teacher ratio at Philadelphia Montessori CS?
The student-to-teacher ratio at Philadelphia Montessori CS is approximately 10.8:1 (21 FTE teachers).
What is the racial breakdown of students at Philadelphia Montessori CS?
At Philadelphia Montessori CS, the student body is approximately 0% White, 4% Hispanic, 93% Black, 3% Two or more.
Who oversees Philadelphia Montessori CS?
Philadelphia Montessori CS is overseen by Philadelphia Montessori CS in Philadelphia County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.