Enrollment
425
New Jersey · 2024-25 NCES data
Elementary school (grades K-5) · Iselin, NJ
Oak Tree Road Elementary School
Federal NCES profile for Oak Tree Road Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
2024-25 NCES dataElementary school (grades K-5)NCES 341812003452
👥 S:T ratio 35
🌟 Gifted program 70
🎓 Counselors 15
📋 Attendance 80
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Oak Tree Road Elementary School earns 50/100 on the Resource Investment Index, with class sizes larger than 95% of New Jersey schools.
- #2 of 3
- elementary schools in Iselin · Resource Index
- 50
- Resource Index · Higher
- 16.3:1
- large classes for New Jersey
- 13.6%
- free-lunch eligible
Oak Tree Road Elementary School has class sizes larger than 95% of New Jersey schools. Computed live against every New Jersey school reporting to NCES.
By Resource Investment Index, Oak Tree Road Elementary School ranks #2 of 3 elementary schools in Iselin, NJ.
School address
District: Woodbridge Township School District · New Jersey
NCES ID 341812003452 Verify on NCES CCD record →
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
16.3:1
vs 11.8:1 New Jersey avg
+38% vs state
Free-lunch eligible
13.6%
vs 29.6% New Jersey avg
-54% vs state
Student-teacher ratio in context
How Oak Tree Road Elementary School compares with New Jersey and U.S. medians
What stands out at Oak Tree Road Elementary School
Oak Tree Road Elementary School is a lower-poverty, mid-sized elementary school in Iselin, New Jersey, enrolling 425 students.
Class loads run heavy: 16.3:1 is larger than about 95% of New Jersey schools and 38% above the 11.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 13.6% of students eligible for free meals.
With 425 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 793 statewide peers matched on enrollment and economic need, it ranks mid-pack at #535.
Its student body is led by Asian (79%) and Hispanic or Latino (12%) (diversity index 36/100).
Counselor access is stretched at roughly 425 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 8.0% of students were chronically absent, below the typical post-pandemic national figure.
Woodbridge Township School District also operates Woodbridge High School (1,681 students) and John F. Kennedy Memorial High School (1,405 students) alongside Oak Tree Road 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
How Oak Tree Road Elementary School compares
Oak Tree Road 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 | 16.3:1 | ▲ 38% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 13.6% | ▼ 54% | 29.6% | 51.7% |
| Enrollment | 425 | top 51% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.3:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
425
Bigger than 51% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
13.6%
free-lunch eligible
- 54% below the New Jersey average of 29.6%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
16.3:1
students per teacher
- 38% above state mean
Top 95% in New Jersey - lower ratio than 5% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
8.0%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$22,601
per pupil, district-wide
- below New Jersey avg of $24,984
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 425 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
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
Asian 79.1%
Hispanic or Latino 11.5%
White 5.2%
African American 2.8%
Two or More 1.4%
Largest group: Asian at 79.1% of enrollment.
Student-body diversity index 35.7/100
Simpson diversity index - at 35.7, Oak Tree Road Elementary School is less mixed than the New Jersey school average of 51.2.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Woodbridge Township School District, which includes Oak Tree Road Elementary School.
$22,601
Per student
-10%
vs New Jersey
Avg $24,984
+36%
vs U.S.
Avg $16,593
Revenue mix
Local 57.9%
State 36.9%
Federal 5.2%
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.
How Oak Tree Road Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Woodbridge High School | Larger | Higher economic need | Lower S:T ratio |
| John F. Kennedy Memorial High School | Larger | Higher economic need | Lower S:T ratio |
| Colonia High School | Larger | Higher economic need | Lower S:T ratio |
| Iselin Middle School | Larger | Similar economic need | Lower S:T ratio |
| Lafayette Estates Elementary School | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Oak Tree Road Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,681
- Students per teacher
- 12.8:1
- Resource Index
- 43/100
- Enrollment
- 1,405
- Students per teacher
- 12.3:1
- Resource Index
- 44/100
- Enrollment
- 1,354
- Students per teacher
- 11.1:1
- Resource Index
- 60/100
- Enrollment
- 794
- Students per teacher
- 11.3:1
- Resource Index
- 55/100
- Enrollment
- 705
- Students per teacher
- 20.7:1
- Resource Index
- 40/100
Similar elementary schools statewide
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.
Similar enrollment (~425 students)
Similar student-teacher ratio (~16.3:1)
Next steps
Verify locally before acting on Oak Tree Road Elementary School's federal record.
- Compare Oak Tree Road Elementary School against another school. Compare schools
- Woodbridge Township School District'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 Oak Tree Road Elementary School
How many students attend Oak Tree Road Elementary School?
Oak Tree Road Elementary School has 425 students enrolled. It is an elementary school in Iselin, NJ.
What is the student-teacher ratio at Oak Tree Road Elementary School?
The student-teacher ratio at Oak Tree Road Elementary School is 16.3:1, which is 38% higher than the New Jersey average of 11.8:1 and 4% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Oak Tree Road Elementary School?
13.6% of students at Oak Tree Road Elementary School are eligible for free lunch, compared to the New Jersey average of 29.6%.
What is the racial and ethnic makeup of Oak Tree Road Elementary School?
The largest demographic group at Oak Tree Road Elementary School is Asian at 79.1% of enrollment, in Iselin, NJ.
What is the Resource Investment Index for Oak Tree Road Elementary School?
Oak Tree Road Elementary School has a Resource Investment Index of 50/100 (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).
How does Oak Tree Road Elementary School rank among elementary schools in Iselin?
By Resource Investment Index, Oak Tree Road Elementary School ranks #2 of 3 elementary schools in Iselin, NJ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Iselin on the city page.
Is Oak Tree Road Elementary School a good school?
Oak Tree Road Elementary School earns 50/100 on the Resource Investment Index, with class sizes larger than 95% 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.
What other schools are in Woodbridge Township School District?
Besides Oak Tree Road Elementary School, Woodbridge Township School District also operates Woodbridge High School (1,681 students), John F. Kennedy Memorial High School (1,405 students), and Colonia High School (1,354 students). See the Woodbridge Township School District 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.