Enrollment
358
New Jersey · 2024-25 NCES data
Elementary school (grades K-5) · Kinnelon, NJ
Stonybrook Elementary School
Federal NCES profile for Stonybrook Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataElementary school (grades K-5)NCES 340804004288
👥 S:T ratio 60
🌟 Gifted program 30
🎓 Counselors 28
📋 Attendance 76
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Stonybrook Elementary School earns 49/100 on the Resource Investment Index, with class sizes smaller than 75% of New Jersey schools.
- #3 of 4
- public schools in Kinnelon · Resource Index
- 49
- Resource Index · Higher
- 9.9:1
- small classes for New Jersey
- 1.7%
- free-lunch eligible
Stonybrook Elementary School has class sizes smaller than 75% of New Jersey schools. Computed live against every New Jersey school reporting to NCES.
By Resource Investment Index, Stonybrook Elementary School ranks #3 of 4 public schools in Kinnelon, NJ.
School address
District: Kinnelon School District · New Jersey
NCES ID 340804004288 Verify on NCES CCD record →
Teachers (FTE)
36.0
Federal CCD staff survey
Students per teacher
9.9:1
vs 11.8:1 New Jersey avg
-16% vs state
Free-lunch eligible
1.7%
vs 29.6% New Jersey avg
-94% vs state
Student-teacher ratio in context
How Stonybrook Elementary School compares with New Jersey and U.S. medians
What stands out at Stonybrook Elementary School
Stonybrook Elementary School is a lower-poverty, mid-sized elementary school in Kinnelon, New Jersey, enrolling 358 students.
Class sizes run a bit leaner than typical: 9.9:1 puts it in the smaller third of New Jersey schools by student-teacher ratio.
Comparatively few students face economic hardship here, 1.7% free-meal eligibility runs 94% below the New Jersey average.
With 358 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.
Among 542 similarly sized, similarly resourced-need New Jersey schools statewide, it ranks #432, in the lower tier once campus size and economic need are matched.
Its student body is led by White (73%) and Asian (11%) (diversity index 45/100).
Counselor availability sits well past the ASCA benchmark, roughly 358 students sharing each counselor, though short of the most stretched campuses.
Attendance holds up well here: only 9.5% of students were chronically absent, below the typical post-pandemic national figure.
Kinnelon School District also operates Kinnelon High School (507 students) and Pearl R. Miller Middle School (378 students) alongside Stonybrook 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 Stonybrook Elementary School compares
Stonybrook 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 | 9.9:1 | ▼ 16% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 1.7% | ▼ 94% | 29.6% | 51.7% |
| Enrollment | 358 | top 63% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.9:1
Leaner classes than 89% of US schools, among the more generously staffed nationally.
358
Bigger than 41% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
1.7%
free-lunch eligible
- 94% below the New Jersey average of 29.6%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
9.9:1
students per teacher
- 16% below state mean
Top 25% in New Jersey - lower ratio than 75% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
9.5%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$29,684
per pupil, district-wide
- above 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 358 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
White 72.9%
Asian 11.2%
Hispanic or Latino 9.5%
African American 2.2%
American Indian / Alaska Native 2.0%
Native Hawaiian / Pacific Islander 2.0%
Two or More 0.3%
Largest group: White at 72.9% of enrollment.
Student-body diversity index 44.6/100
Simpson diversity index - at 44.6, Stonybrook Elementary School is less mixed than the New Jersey school average of 51.2.
Programs
Funding & spending
District-wide per-pupil expenditure for Kinnelon School District, which includes Stonybrook Elementary School.
$29,684
Per student
+19%
vs New Jersey
Avg $24,984
+79%
vs U.S.
Avg $16,593
Revenue mix
Local 73.5%
State 24.0%
Federal 2.4%
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 Stonybrook Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Kinnelon High School | Larger | Similar economic need | Similar S:T ratio |
| Pearl R. Miller Middle School | Similar size | Similar economic need | Lower S:T ratio |
| Kiel Elementary School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Stonybrook Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 507
- Students per teacher
- 8.9:1
- Resource Index
- 60/100
- Enrollment
- 378
- Students per teacher
- 8.4:1
- Resource Index
- 59/100
- Enrollment
- 374
- Students per teacher
- 16.3:1
- Resource Index
- 42/100
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 (~358 students)
Similar student-teacher ratio (~9.9:1)
Next steps
Verify locally before acting on Stonybrook Elementary School's federal record.
- Compare Stonybrook Elementary School against another school. Compare schools
- Kinnelon 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 Stonybrook Elementary School
How many students attend Stonybrook Elementary School?
Stonybrook Elementary School has 358 students enrolled. It is an elementary school in Kinnelon, NJ.
What is the student-teacher ratio at Stonybrook Elementary School?
The student-teacher ratio at Stonybrook Elementary School is 9.9:1, which is 16% lower than the New Jersey average of 11.8:1 and 37% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Stonybrook Elementary School?
1.7% of students at Stonybrook Elementary School are eligible for free lunch, compared to the New Jersey average of 29.6%.
What is the racial and ethnic makeup of Stonybrook Elementary School?
The largest demographic group at Stonybrook Elementary School is White at 72.9% of enrollment, in Kinnelon, NJ.
What is the Resource Investment Index for Stonybrook Elementary School?
Stonybrook 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).
How does Stonybrook Elementary School rank among public schools in Kinnelon?
By Resource Investment Index, Stonybrook Elementary School ranks #3 of 4 public schools in Kinnelon, 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 Kinnelon on the city page.
Is Stonybrook Elementary School a good school?
Stonybrook Elementary School earns 49/100 on the Resource Investment Index, with class sizes smaller than 75% 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 Kinnelon School District?
Besides Stonybrook Elementary School, Kinnelon School District also operates Kinnelon High School (507 students), Pearl R. Miller Middle School (378 students), and Kiel Elementary School (374 students). See the Kinnelon 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.