Enrollment
644
New York · 2024-25 NCES data
2024-25 NCES data Other / mixed grade configuration NCES 360011902144
Ps 31 Samuel F Dupont — Brooklyn, NY
Federal NCES profile for Ps 31 Samuel F Dupont, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 43/100.
👥 Class size 32
🌟 Gifted program 30
📋 Attendance 66
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: New York City Geographic District #14 · New York
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 11.7:1 New York avg
+44% vs state
Free-lunch eligible
67.7%
vs 56.2% New York avg
+20% vs state
Student-teacher ratio in context
How Ps 31 Samuel F Dupont compares with New York and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Ps 31 Samuel F Dupont reports 644 enrolled students to the National Center for Education Statistics (NCES) alongside 31.0 full-time-equivalent teachers, producing a 16.9:1 student-teacher ratio. That figure sits 44% above the New York state mean of 11.7:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 6% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 67.7% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 20% above the New York average and 31% above the national baseline. Chronic absenteeism — missing 10% or more of school days — stands at 13.5% according to the 2021-22 Civil Rights Data Collection.
Taken together, these measurements produce a Resource Investment Index of 43/100 (D), calculated from 3 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Ps 31 Samuel F Dupont compares
Cross-validating school-level NCES values against New York state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.9:1 | ▲ 44% | 11.7:1 | 15.9:1 |
| Free-lunch eligible | 67.7% | ▲ 20% | 56.2% | 51.8% |
| Enrollment | 644 | top 78% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
67.7%
free-lunch eligible
— 20% above the New York average of 56.2%
Above the 40% Title I schoolwide threshold — federal funds support the whole school, not individual students.
Staffing depth
16.9:1
students per teacher
— 44% above state mean
Top 96% in New York — lower ratio than 4% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
13.5%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Overview
Enrollment 644 Top 78% in New York — larger than 22% of 4,812 state schools
Teachers (FTE) 31.0
Students per teacher 16.9:1 +44% vs state
Free-lunch eligible 67.7% +20% vs state
NCES ID 360011902144
Student demographics
White 46.4%
Hispanic or Latino 34.0%
Asian 7.0%
Two or More 6.5%
African American 6.1%
Largest group: White at 46.4% of enrollment.
Programs & staff
Discipline & special education
Chronically absent 13.5%
Other Schools in This District
- Enrollment
- 1,028
- Students per teacher
- 13:1
- Enrollment
- 772
- Students per teacher
- 16:1
- Enrollment
- 667
- Students per teacher
- 13.2:1
- Enrollment
- 636
- Students per teacher
- 8.8:1
- Enrollment
- 622
- Students per teacher
- 17.6:1
Similar other schools in Brooklyn
6 comparable other schools (grades Mixed) serving the same city.
Coney Island Preparatory Public Charter School
Standard public school
1,336 students 11.2:1 students per teacher
Achievement First Crown Heights Charter School
Standard public school
1,320 students 13.4:1 students per teacher
Leadership Preparatory Ocean Hill Charter School
Standard public school
1,313 students 13.5:1 students per teacher
Medgar Evers College Preparatory School
Standard public school
1,267 students 18.3:1 students per teacher
Kings Collegiate Charter School
Standard public school
1,262 students 12.5:1 students per teacher
Brooklyn Prospect Charter School - Csd 15.2
Standard public school
1,259 students 8.7:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Ps 31 Samuel F Dupont
How many students attend Ps 31 Samuel F Dupont?
Ps 31 Samuel F Dupont has 644 students enrolled. It is a other school in BROOKLYN, NY.
What is the student-teacher ratio at Ps 31 Samuel F Dupont?
The student-teacher ratio at Ps 31 Samuel F Dupont is 16.9:1, which is 44% higher than the New York average of 11.7:1 and 6% higher than the national average of 15.9:1.
What percentage of students receive free lunch at Ps 31 Samuel F Dupont?
67.7% of students at Ps 31 Samuel F Dupont are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Ps 31 Samuel F Dupont?
The largest demographic group at Ps 31 Samuel F Dupont is White at 46.4%. The school serves a diverse student body in BROOKLYN, NY.
What is the Resource Investment Index for Ps 31 Samuel F Dupont?
Ps 31 Samuel F Dupont has a Resource Investment Index of 43/100 (D) based on 3 factors: student-teacher ratio, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.