Enrollment
272
Pennsylvania · 2024-25 NCES data
Other / mixed grade configuration · Philadelphia, PA
Inquiry Cs
Federal NCES profile for Inquiry Cs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
2024-25 NCES dataOther / mixed grade configurationNCES 420004200404Charter school
👥 S:T ratio 58
🌟 Gifted program 30
📋 Attendance 63
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Inquiry Cs earns 50/100 on the Resource Investment Index, with class sizes smaller than 89% of Pennsylvania schools.
- #8 of 106
- schools in Philadelphia · Resource Index
- 50
- Resource Index · Higher
- 10.5:1
- small classes for Pennsylvania
- 100.0%
- free-lunch eligible
Inquiry Cs has class sizes smaller than 89% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Inquiry Cs ranks #8 of 106 schools in Philadelphia, PA.
School address
District: Inquiry Cs · Pennsylvania
NCES ID 420004200404 Verify on NCES CCD record →
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
10.5:1
vs 13.6:1 Pennsylvania avg
-23% vs state
Free-lunch eligible
100.0%
vs 58.1% Pennsylvania avg
+72% vs state
Student-teacher ratio in context
How Inquiry Cs compares with Pennsylvania and U.S. medians
What stands out at Inquiry Cs
Inquiry Cs is a high-poverty, mid-sized charter combined-grade school in Philadelphia, Pennsylvania, enrolling 272 students.
Classes run notably small here: at 10.5:1, Inquiry Cs is leaner than roughly 89% of Pennsylvania schools and 23% under the state's 13.6:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 100.0% of students eligible for free meals.
Enrollment of 272 puts it in the smaller third of Pennsylvania schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 2,889 scored Pennsylvania schools.
Against 341 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #73.
Its student body is predominantly African American (85% of enrollment) (diversity index 27/100).
14.7% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Its district draws 35.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Philadelphia's public schools, it stands alongside Philadelphia Performing Arts Cs (2,572 students): Inquiry Cs is smaller than that campus by headcount and runs leaner classes (10.5:1 vs 15.5:1).
Inquiry Cs is a single-school charter district, so Inquiry 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 Inquiry Cs compares
Inquiry 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 | 10.5:1 | ▼ 23% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 72% | 58.1% | 51.7% |
| Enrollment | 272 | top 82% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.5:1
Leaner classes than 86% of US schools, among the more generously staffed nationally.
272
Bigger than 28% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
100.0%
free-lunch eligible
- 72% above the Pennsylvania average of 58.1%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
10.5:1
students per teacher
- 23% below state mean
Top 11% in Pennsylvania - lower ratio than 89% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
14.7%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$16,650
per pupil, district-wide
- below Pennsylvania avg of $17,970
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 84.9%
Two or More 8.8%
Hispanic or Latino 4.0%
White 1.8%
Native Hawaiian / Pacific Islander 0.4%
Largest group: African American at 84.9% of enrollment.
Student-body diversity index 27.0/100
Simpson diversity index - at 27.0, Inquiry Cs is less mixed than the Pennsylvania school average of 37.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Inquiry Cs, which includes Inquiry Cs.
$16,650
Per student
-7%
vs Pennsylvania
Avg $17,970
+0%
vs U.S.
Avg $16,593
Revenue mix
Local 63.9%
State 0.8%
Federal 35.3%
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 (~272 students)
Similar student-teacher ratio (~10.5:1)
Next steps
Verify locally before acting on Inquiry Cs's federal record.
- Compare Inquiry Cs against another school. Compare schools
- Inquiry 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 Inquiry Cs
How many students attend Inquiry Cs?
Inquiry Cs has 272 students enrolled. It is a public school in Philadelphia, PA.
What is the student-teacher ratio at Inquiry Cs?
The student-teacher ratio at Inquiry Cs is 10.5:1, which is 23% lower than the Pennsylvania average of 13.6:1 and 33% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Inquiry Cs?
100.0% of students at Inquiry Cs are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
What is the racial and ethnic makeup of Inquiry Cs?
The largest demographic group at Inquiry Cs is African American at 84.9% of enrollment, in Philadelphia, PA.
What is the Resource Investment Index for Inquiry Cs?
Inquiry Cs has a Resource Investment Index of 50/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Inquiry Cs rank among schools in Philadelphia?
By Resource Investment Index, Inquiry Cs ranks #8 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 Inquiry Cs a good school?
Inquiry Cs earns 50/100 on the Resource Investment Index, with class sizes smaller than 89% 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 Inquiry Cs?
None; Inquiry Cs is a single-school charter district, and Inquiry 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.