Enrollment
226
Pennsylvania · 2024-25 NCES data
Other / mixed grade configuration · Philadelphia, PA
Philadelphia Montessori Cs
Federal NCES profile for Philadelphia Montessori Cs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataOther / mixed grade configurationNCES 420013000849Charter school
👥 S:T ratio 69
🌟 Gifted program 30
🎓 Counselors 55
📋 Attendance 11
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Philadelphia Montessori Cs earns 41/100 on the Resource Investment Index, with class sizes smaller than 98% of Pennsylvania schools.
- #25 of 106
- schools in Philadelphia · Resource Index
- 41
- Resource Index · Typical
- 7.8:1
- small classes for Pennsylvania
- 226
- students enrolled
Philadelphia Montessori Cs has class sizes smaller than 98% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Philadelphia Montessori Cs ranks #25 of 106 schools in Philadelphia, PA.
School address
District: Philadelphia Montessori Cs · Pennsylvania
NCES ID 420013000849 Verify on NCES CCD record →
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
7.8:1
vs 13.6:1 Pennsylvania avg
-43% vs state
Student-teacher ratio in context
How Philadelphia Montessori Cs compares with Pennsylvania and U.S. medians
What stands out at Philadelphia Montessori Cs
Philadelphia Montessori Cs is a small charter combined-grade school in Philadelphia, Pennsylvania, enrolling 226 students.
Classes run notably small here: at 7.8:1, Philadelphia Montessori Cs is leaner than roughly 98% of Pennsylvania schools and 43% under the state's 13.6:1 norm, more adult attention per pupil than most peers.
Enrollment of 226 puts it in the smaller third of Pennsylvania schools by headcount.
Its Resource Investment Index lands in the lower third of 2,889 scored Pennsylvania schools.
Its student body is predominantly African American (93% of enrollment) (diversity index 13/100).
Counselor coverage is strong, about 226 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 35.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Philadelphia's public schools, it stands alongside Philadelphia Performing Arts Cs (2,572 students): Philadelphia Montessori Cs is smaller than that campus by headcount and runs leaner classes (7.8:1 vs 15.5:1).
Philadelphia Montessori Cs is a single-school charter district, so Philadelphia Montessori Cs operates independently rather than alongside district-mates.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Philadelphia Montessori Cs compares
Philadelphia Montessori Cs on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 7.8:1 | ▼ 43% | 13.6:1 | 15.7:1 |
| Enrollment | 226 | top 88% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
7.8:1
Leaner classes than 95% of US schools, among the more generously staffed nationally.
226
Bigger than 22% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
7.8:1
students per teacher
- 43% below state mean
Top 2% in Pennsylvania - lower ratio than 98% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
35.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,257
per pupil, district-wide
- below Pennsylvania avg of $17,970
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 226 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 3 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.3 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
African American 93.4%
Hispanic or Latino 3.5%
Two or More 2.7%
White 0.4%
Largest group: African American at 93.4% of enrollment.
Student-body diversity index 12.6/100
Simpson diversity index - at 12.6, Philadelphia Montessori Cs is less mixed than the Pennsylvania school average of 37.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Philadelphia Montessori Cs, which includes Philadelphia Montessori Cs.
$17,257
Per student
-4%
vs Pennsylvania
Avg $17,970
+4%
vs U.S.
Avg $16,593
Revenue mix
Local 86.6%
State 0.5%
Federal 12.9%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
Similar other schools in Philadelphia
6 comparable other schools (grades Mixed) serving the same city.
Philadelphia Performing Arts Cs
Standard public school
2,572 students 15.5:1 students per teacher
Mast Community Cs Ii
Standard public school
1,875 students 16:1 students per teacher
First Philadelphia Preparatory Cs
Standard public school
1,831 students 18.9:1 students per teacher
Esperanza Academy Cs
Standard public school
1,637 students 14.1:1 students per teacher
Frank Anne Sch
Standard public school
1,622 students 21.6:1 students per teacher
New Foundations Cs
Standard public school
1,529 students 15.6:1 students per teacher
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Pennsylvania, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~226 students)
Similar student-teacher ratio (~7.8:1)
Next steps
Verify locally before acting on Philadelphia Montessori Cs's federal record.
- Compare Philadelphia Montessori Cs against another school. Compare schools
- Philadelphia Montessori Cs's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Philadelphia Montessori Cs
How many students attend Philadelphia Montessori Cs?
Philadelphia Montessori Cs has 226 students enrolled. It is a public school in Philadelphia, PA.
What is the student-teacher ratio at Philadelphia Montessori Cs?
The student-teacher ratio at Philadelphia Montessori Cs is 7.8:1, which is 43% lower than the Pennsylvania average of 13.6:1 and 50% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Philadelphia Montessori Cs?
The largest demographic group at Philadelphia Montessori Cs is African American at 93.4% of enrollment, in Philadelphia, PA.
What is the Resource Investment Index for Philadelphia Montessori Cs?
Philadelphia Montessori Cs has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Philadelphia Montessori Cs rank among schools in Philadelphia?
By Resource Investment Index, Philadelphia Montessori Cs ranks #25 of 106 schools in Philadelphia, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Philadelphia on the city page.
Is Philadelphia Montessori Cs a good school?
Philadelphia Montessori Cs earns 41/100 on the Resource Investment Index, with class sizes smaller than 98% of Pennsylvania schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Philadelphia Montessori Cs?
None; Philadelphia Montessori Cs is a single-school charter district, and Philadelphia Montessori Cs is its only campus.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.