Enrollment
434
New Jersey · 2024-25 NCES data
Other / mixed grade configuration · Wharton, NJ
Federal NCES profile for Marie V. Duffy Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
The verdict
Marie V. Duffy Elementary School earns 49/100 on the Resource Investment Index, with class sizes smaller than 82% of New Jersey schools.
Marie V. Duffy Elementary School has class sizes smaller than 82% of New Jersey schools. Computed live against every New Jersey school reporting to NCES.
NCES ID 341788004560 Verify on NCES CCD record →
Enrollment
434
New Jersey · 2024-25 NCES data
Teachers (FTE)
46.0
Federal CCD staff survey
Students per teacher
9.4:1
vs 11.8:1 New Jersey avg
-20% vs state
Free-lunch eligible
37.0%
vs 29.6% New Jersey avg
+25% vs state
How Marie V. Duffy Elementary School compares with New Jersey and U.S. medians
Smaller classes than state median
9.4:1 - 2.4 below the New Jersey state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Marie V. Duffy Elementary School is a mid-sized combined-grade school in Wharton, New Jersey, enrolling 434 students.
Class sizes run a bit leaner than typical: 9.4:1 puts it in the smaller third of New Jersey schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 37.0% of students eligible for free meals.
With 434 students, its enrollment sits close to the New Jersey median campus size.
Its Resource Investment Index sits near the middle of the pack among 2,501 scored New Jersey schools.
Against 365 statewide peers matched on enrollment and economic need, it ranks mid-pack at #197.
Its student body is led by Hispanic or Latino (77%) and White (18%) (diversity index 38/100).
Counselor access is stretched at roughly 434 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 20.5% of students chronically absent per the 2021-22 civil-rights collection.
Its district, Wharton Borough School District, also runs Alfred C. Mackinnon Middle School (265 students).
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
Marie V. Duffy Elementary School on the metrics families compare, against New Jersey and U.S. means.
| Metric | This school | vs New Jersey | New Jersey avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.4:1 | ▼ 20% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 37.0% | ▲ 25% | 29.6% | 51.7% |
| Enrollment | 434 | top 50% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 77.0% of enrollment.
Simpson diversity index - at 37.5, Marie V. Duffy Elementary School is less mixed than the New Jersey school average of 51.2.
District-wide per-pupil expenditure for Wharton Borough School District, which includes Marie V. Duffy Elementary School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Alfred C. Mackinnon Middle School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Marie V. Duffy Elementary School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of New Jersey, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Marie V. Duffy Elementary School's federal record.
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.
Marie V. Duffy Elementary School has 434 students enrolled. It is a public school in Wharton, NJ.
The student-teacher ratio at Marie V. Duffy Elementary School is 9.4:1, which is 20% lower than the New Jersey average of 11.8:1 and 40% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
37.0% of students at Marie V. Duffy Elementary School are eligible for free lunch, compared to the New Jersey average of 29.6%.
The largest demographic group at Marie V. Duffy Elementary School is Hispanic or Latino at 77.0% of enrollment, in Wharton, NJ.
Marie V. Duffy Elementary School has a Resource Investment Index of 49/100 (higher 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).
Marie V. Duffy Elementary School earns 49/100 on the Resource Investment Index, with class sizes smaller than 82% of New Jersey 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.
Besides Marie V. Duffy Elementary School, Wharton Borough School District also operates Alfred C. Mackinnon Middle School (265 students). See the Wharton Borough School District district page for the complete list.
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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Marie V. Duffy Elementary School, Wharton NJ.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/marie-v-duffy-elementary-school-nj
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.