Enrollment
305
New Jersey · 2024-25 NCES data
Other / mixed grade configuration · East Brunswick, NJ
Federal NCES profile for Irwin Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 69/100.
The verdict
Irwin Elementary School earns 69/100 on the Resource Investment Index, with class sizes near the New Jersey median.
Irwin Elementary School has class sizes near the New Jersey median. Computed live against every New Jersey school reporting to NCES.
By Resource Investment Index, Irwin Elementary School ranks #3 of 9 schools in East Brunswick, NJ.
NCES ID 340411005994 Verify on NCES CCD record →
Enrollment
305
New Jersey · 2024-25 NCES data
Teachers (FTE)
28.0
Federal CCD staff survey
Students per teacher
10.9:1
vs 11.8:1 New Jersey avg
-8% vs state
Free-lunch eligible
18.1%
vs 29.6% New Jersey avg
-39% vs state
How Irwin Elementary School compares with New Jersey and U.S. medians
At or below state median
10.9:1 - 0.9 below the New Jersey state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Irwin Elementary School is a lower-poverty, mid-sized combined-grade school in East Brunswick, New Jersey, enrolling 305 students.
At 10.9:1, its student-teacher ratio sits close to the New Jersey median, within a few percentage points of the 11.8:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 18.1% lands close to the New Jersey typical range, neither a high- nor low-need campus by this measure.
Enrollment of 305 puts it in the smaller third of New Jersey schools by headcount.
Its Resource Investment Index outscores 95% of the 2,501 New Jersey schools with a score on record, a top-tier result on this measure.
Among 535 similarly sized, similarly resourced-need New Jersey schools statewide, it ranks #21, a top-tier result once campus size and economic need are matched.
Its student body is led by White (42%) and Asian (38%) (diversity index 66/100).
Attendance holds up well here: only 7.9% of students were chronically absent, below the typical post-pandemic national figure.
East Brunswick Township School District also operates East Brunswick High School (2,124 students) and Churchill Junior High School (2,080 students) alongside Irwin 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
Irwin 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 | 10.9:1 | ▼ 8% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 18.1% | ▼ 39% | 29.6% | 51.7% |
| Enrollment | 305 | top 73% | - | - |
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 41.6% of enrollment.
Simpson diversity index - at 66.2, Irwin Elementary School is more mixed than the New Jersey school average of 51.2.
District-wide per-pupil expenditure for East Brunswick Township School District, which includes Irwin 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 |
|---|---|---|---|
| East Brunswick High School | Larger | Similar economic need | Higher S:T ratio |
| Churchill Junior High School | Larger | Similar economic need | Higher S:T ratio |
| Hammarskjold Upper Elementary School | Larger | Similar economic need | Similar S:T ratio |
| Memorial Elementary School | Larger | Similar economic need | Similar S:T ratio |
| Frost Elementary School | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Irwin 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 Irwin 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.
Irwin Elementary School has 305 students enrolled. It is a public school in East Brunswick, NJ.
The student-teacher ratio at Irwin Elementary School is 10.9:1, which is 8% lower than the New Jersey average of 11.8:1 and 31% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
18.1% of students at Irwin Elementary School are eligible for free lunch, compared to the New Jersey average of 29.6%.
The largest demographic group at Irwin Elementary School is White at 41.6% of enrollment, in East Brunswick, NJ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.2/100.
Irwin Elementary School has a Resource Investment Index of 69/100 (higher 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).
By Resource Investment Index, Irwin Elementary School ranks #3 of 9 schools in East Brunswick, NJ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in East Brunswick on the city page.
Irwin Elementary School earns 69/100 on the Resource Investment Index, with class sizes near the New Jersey median. 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 Irwin Elementary School, East Brunswick Township School District also operates East Brunswick High School (2,124 students), Churchill Junior High School (2,080 students), and Hammarskjold Upper Elementary School (1,221 students). See the East Brunswick 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, “Irwin Elementary School, East Brunswick 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/irwin-elementary-school-nj
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