Enrollment
273
New Jersey · 2024-25 NCES data
Other / mixed grade configuration · Sewell, NJ
Federal NCES profile for Sewell Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
The verdict
Sewell Elementary School earns 46/100 on the Resource Investment Index, with class sizes smaller than 77% of New Jersey schools.
Sewell Elementary School has class sizes smaller than 77% of New Jersey schools. Computed live against every New Jersey school reporting to NCES.
By Resource Investment Index, Sewell Elementary School ranks #8 of 9 public schools in Sewell, NJ.
NCES ID 340960002590 Verify on NCES CCD record →
Enrollment
273
New Jersey · 2024-25 NCES data
Teachers (FTE)
28.0
Federal CCD staff survey
Students per teacher
9.8:1
vs 11.8:1 New Jersey avg
-17% vs state
Free-lunch eligible
12.8%
vs 29.6% New Jersey avg
-57% vs state
How Sewell Elementary School compares with New Jersey and U.S. medians
Smaller classes than state median
9.8:1 - 2.0 below the New Jersey state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Sewell Elementary School is a lower-poverty, mid-sized combined-grade school in Sewell, New Jersey, enrolling 273 students.
Class sizes run a bit leaner than typical: 9.8:1 puts it in the smaller third of New Jersey schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 12.8% of students eligible for free meals.
Enrollment of 273 puts it in the smaller third of New Jersey schools by headcount.
Its Resource Investment Index lands in the lower third of 2,501 scored New Jersey schools.
Among 507 similarly sized, similarly resourced-need New Jersey schools statewide, it ranks #443, in the lower tier once campus size and economic need are matched.
Its student body is led by White (77%) and Hispanic or Latino (11%) (diversity index 40/100).
Counselor coverage runs a bit thin, about 273 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 20.5% of students chronically absent per the 2021-22 civil-rights collection.
Among Sewell's public schools, it stands alongside Bankbridge Regional School (479 students): Sewell Elementary School is smaller than that campus by headcount and runs heavier classes (9.8:1 vs 5:1).
Mantua Township School District also operates J. Mason Tomlin Elementary School (558 students) and Centre City Elementary School (464 students) alongside Sewell Elementary School.
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
Sewell 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 | 9.8:1 | ▼ 17% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 12.8% | ▼ 57% | 29.6% | 51.7% |
| Enrollment | 273 | top 80% | - | - |
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: White at 76.6% of enrollment.
Simpson diversity index - at 39.5, Sewell Elementary School is less mixed than the New Jersey school average of 51.2.
District-wide per-pupil expenditure for Mantua Township School District, which includes Sewell 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 |
|---|---|---|---|
| J. Mason Tomlin Elementary School | Larger | Similar economic need | Similar S:T ratio |
| Centre City Elementary School | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Sewell Elementary School's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) serving the same city.
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 Sewell 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.
Sewell Elementary School has 273 students enrolled. It is a public school in Sewell, NJ.
The student-teacher ratio at Sewell Elementary School is 9.8:1, which is 17% lower than the New Jersey 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.
12.8% of students at Sewell Elementary School are eligible for free lunch, compared to the New Jersey average of 29.6%.
The largest demographic group at Sewell Elementary School is White at 76.6% of enrollment, in Sewell, NJ.
Sewell Elementary School has a Resource Investment Index of 46/100 (typical 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).
By Resource Investment Index, Sewell Elementary School ranks #8 of 9 public schools in Sewell, NJ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Sewell on the city page.
Sewell Elementary School earns 46/100 on the Resource Investment Index, with class sizes smaller than 77% 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 Sewell Elementary School, Mantua Township School District also operates J. Mason Tomlin Elementary School (558 students) and Centre City Elementary School (464 students). See the Mantua Township 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.
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PlainSchools, “Sewell Elementary School, Sewell 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/sewell-elementary-school-nj
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