Enrollment
412
New York · 2024-25 NCES data
Other / mixed grade configuration · Bronx, NY
Ps 100 Isaac Clason
Federal NCES profile for Ps 100 Isaac Clason, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
2024-25 NCES dataOther / mixed grade configurationNCES 360008502380
👥 S:T ratio 61
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ps 100 Isaac Clason earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 73% of New York schools.
- #57 of 184
- schools in Bronx · Resource Index
- 30
- Resource Index · Lower
- 9.8:1
- small classes for New York
- 91.3%
- free-lunch eligible
Ps 100 Isaac Clason has class sizes smaller than 73% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Ps 100 Isaac Clason ranks #57 of 184 schools in Bronx, NY.
School address
District: New York City Geographic District # 8 · New York
NCES ID 360008502380 Verify on NCES CCD record →
Teachers (FTE)
42.0
Federal CCD staff survey
Students per teacher
9.8:1
vs 11.8:1 New York avg
-17% vs state
Free-lunch eligible
91.3%
vs 56.2% New York avg
+62% vs state
Student-teacher ratio in context
How Ps 100 Isaac Clason compares with New York and U.S. medians
What stands out at Ps 100 Isaac Clason
Ps 100 Isaac Clason is a high-poverty, mid-sized combined-grade school in Bronx, New York, enrolling 412 students.
Class sizes run a bit leaner than typical: 9.8:1 puts it in the smaller third of New York schools by student-teacher ratio.
Economic need is high: 91.3% of students qualify for free meals, 62% above the New York average, a Title I-weighted population that federal funding formulas prioritise.
With 412 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index lands in the lower third of 4,801 scored New York schools.
Against 809 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #313.
Its student body is led by Hispanic or Latino (72%) and African American (23%) (diversity index 43/100).
Chronic absenteeism is elevated: 69.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
New York City Geographic District # 8 also operates Herbert H Lehman High School (1,087 students) and Ps 71 Rose E Scala (1,079 students) alongside Ps 100 Isaac Clason.
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 Ps 100 Isaac Clason compares
Ps 100 Isaac Clason on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.8:1 | ▼ 17% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 91.3% | ▲ 62% | 56.2% | 51.7% |
| Enrollment | 412 | top 52% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.8:1
Leaner classes than 90% of US schools, among the more generously staffed nationally.
412
Bigger than 49% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
91.3%
free-lunch eligible
- 62% above the New York average of 56.2%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
9.8:1
students per teacher
- 17% below state mean
Top 27% in New York - lower ratio than 73% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
69.2%
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.
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
Hispanic or Latino 72.3%
African American 22.6%
Asian 3.4%
Two or More 1.0%
White 0.5%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 72.3% of enrollment.
Student-body diversity index 42.5/100
Simpson diversity index - at 42.5, Ps 100 Isaac Clason is less mixed than the New York school average of 45.5.
How Ps 100 Isaac Clason Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Herbert H Lehman High School | Larger | Lower economic need | Higher S:T ratio |
| Ps 71 Rose E Scala | Larger | Lower economic need | Higher S:T ratio |
| Ps 14 Senator John Calandra | Larger | Lower economic need | Higher S:T ratio |
| Ps 36 Unionport | Larger | Similar economic need | Higher S:T ratio |
| Ps 152 Evergreen | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Ps 100 Isaac Clason's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,087
- Students per teacher
- 12.9:1
- Resource Index
- 24/100
- Enrollment
- 1,079
- Students per teacher
- 12:1
- Resource Index
- 26/100
- Enrollment
- 718
- Students per teacher
- 19.4:1
- Resource Index
- 11/100
- Enrollment
- 660
- Students per teacher
- 15.3:1
- Resource Index
- 19/100
- Enrollment
- 634
- Students per teacher
- 14.4:1
- Resource Index
- 21/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~412 students)
Next steps
Verify locally before acting on Ps 100 Isaac Clason's federal record.
- Compare Ps 100 Isaac Clason against another school. Compare schools
- New York City Geographic District # 8'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 Ps 100 Isaac Clason
How many students attend Ps 100 Isaac Clason?
Ps 100 Isaac Clason has 412 students enrolled. It is a public school in Bronx, NY.
What is the student-teacher ratio at Ps 100 Isaac Clason?
The student-teacher ratio at Ps 100 Isaac Clason is 9.8:1, which is 17% lower than the New York average of 11.8:1 and 38% 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 Ps 100 Isaac Clason?
91.3% of students at Ps 100 Isaac Clason are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Ps 100 Isaac Clason?
The largest demographic group at Ps 100 Isaac Clason is Hispanic or Latino at 72.3% of enrollment, in Bronx, NY.
What is the Resource Investment Index for Ps 100 Isaac Clason?
Ps 100 Isaac Clason has a Resource Investment Index of 30/100 (lower 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 Ps 100 Isaac Clason rank among schools in Bronx?
By Resource Investment Index, Ps 100 Isaac Clason ranks #57 of 184 schools in Bronx, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Bronx on the city page.
Is Ps 100 Isaac Clason a good school?
Ps 100 Isaac Clason earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 73% of New York 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 New York City Geographic District # 8?
Besides Ps 100 Isaac Clason, New York City Geographic District # 8 also operates Herbert H Lehman High School (1,087 students), Ps 71 Rose E Scala (1,079 students), and Ps 14 Senator John Calandra (718 students). See the New York City Geographic District # 8 district page for the complete list.
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.