Enrollment
644
New York · 2024-25 NCES data
Other / mixed grade configuration · Brooklyn, NY
Ps 31 Samuel F Dupont
Federal NCES profile for Ps 31 Samuel F Dupont, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataOther / mixed grade configurationNCES 360011902144
👥 S:T ratio 17
🌟 Gifted program 30
📋 Attendance 66
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ps 31 Samuel F Dupont earns 38/100 on the Resource Investment Index, with class sizes larger than 98% of New York schools. It is also more racially and ethnically mixed than most New York schools.
- #30 of 262
- schools in Brooklyn · Resource Index
- 38
- Resource Index · Typical
- 20.8:1
- large classes for New York
- 67.7%
- free-lunch eligible
Ps 31 Samuel F Dupont has class sizes larger than 98% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Ps 31 Samuel F Dupont ranks #30 of 262 schools in Brooklyn, NY.
School address
District: New York City Geographic District #14 · New York
NCES ID 360011902144 Verify on NCES CCD record →
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
20.8:1
vs 11.8:1 New York avg
+76% 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
What stands out at Ps 31 Samuel F Dupont
Ps 31 Samuel F Dupont is a higher-need, mid-sized combined-grade school in Brooklyn, New York, enrolling 644 students.
Class loads run heavy: 20.8:1 is larger than about 98% of New York schools and 76% above the 11.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 67.7% of students eligible for free meals.
Enrollment of 644 puts it in the larger third of New York schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 4,801 scored New York schools.
Against 662 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #72.
Its student body is led by White (46%) and Hispanic or Latino (34%), more mixed than most schools in the state (diversity index 66/100).
13.5% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
New York City Geographic District #14 also operates Is 318 Eugenio Maria De Hostos (1,028 students) and Brooklyn Latin School (the) (772 students) alongside Ps 31 Samuel F Dupont.
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 31 Samuel F Dupont compares
Ps 31 Samuel F Dupont 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 | 20.8:1 | ▲ 76% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 67.7% | ▲ 20% | 56.2% | 51.7% |
| Enrollment | 644 | top 22% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20.8:1
Leaner classes than 13% of US schools, heavier class loads than most.
644
Bigger than 76% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
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
20.8:1
students per teacher
- 76% above state mean
Top 98% in New York - lower ratio than 2% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
13.5%
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.
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
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.
Student-body diversity index 65.6/100
Simpson diversity index - at 65.6, Ps 31 Samuel F Dupont is more mixed than the New York school average of 45.5.
How Ps 31 Samuel F Dupont Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Is 318 Eugenio Maria De Hostos | Larger | Similar economic need | Lower S:T ratio |
| Brooklyn Latin School (the) | Similar size | Lower economic need | Lower S:T ratio |
| Williamsburg Preparatory School | Similar size | Higher economic need | Lower S:T ratio |
| Ps 84 Jose De Diego | Similar size | Lower economic need | Lower S:T ratio |
| Williamsburg High School for Architecture and Design | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Ps 31 Samuel F Dupont's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,028
- Students per teacher
- 12.5:1
- Resource Index
- 25/100
- Enrollment
- 772
- Students per teacher
- 15.4:1
- Resource Index
- 24/100
- Enrollment
- 667
- Students per teacher
- 12.8:1
- Resource Index
- 24/100
- Enrollment
- 636
- Students per teacher
- 9.2:1
- Resource Index
- 32/100
- Enrollment
- 622
- Students per teacher
- 18.3:1
- Resource Index
- 24/100
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 (~644 students)
Next steps
Verify locally before acting on Ps 31 Samuel F Dupont's federal record.
- Compare Ps 31 Samuel F Dupont against another school. Compare schools
- New York City Geographic District #14'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 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 public 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 20.8:1, which is 76% higher than the New York average of 11.8:1 and 32% higher than the national average of 15.7:1.
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% of enrollment, in Brooklyn, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.6/100.
What is the Resource Investment Index for Ps 31 Samuel F Dupont?
Ps 31 Samuel F Dupont has a Resource Investment Index of 38/100 (typical 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 31 Samuel F Dupont rank among schools in Brooklyn?
By Resource Investment Index, Ps 31 Samuel F Dupont ranks #30 of 262 schools in Brooklyn, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Brooklyn on the city page.
Is Ps 31 Samuel F Dupont a good school?
Ps 31 Samuel F Dupont earns 38/100 on the Resource Investment Index, with class sizes larger than 98% of New York schools. It is also more racially and ethnically mixed than most 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 #14?
Besides Ps 31 Samuel F Dupont, New York City Geographic District #14 also operates Is 318 Eugenio Maria De Hostos (1,028 students), Brooklyn Latin School (the) (772 students), and Williamsburg Preparatory School (667 students). See the New York City Geographic District #14 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.