Enrollment
394
New Jersey · 2024-25 NCES data
Elementary school (grades K-5) · Lake Hiawatha, NJ
Federal NCES profile for Knollwood Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
The verdict
Knollwood Elementary School earns 46/100 on the Resource Investment Index, with class sizes larger than 76% of New Jersey schools.
Knollwood Elementary School has class sizes larger than 76% of New Jersey schools. Computed live against every New Jersey school reporting to NCES.
NCES ID 341248004442 Verify on NCES CCD record →
Enrollment
394
New Jersey · 2024-25 NCES data
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
13.1:1
vs 11.8:1 New Jersey avg
+11% vs state
Free-lunch eligible
18.4%
vs 29.6% New Jersey avg
-38% vs state
How Knollwood Elementary School compares with New Jersey and U.S. medians
Slightly above state median
13.1:1 - 1.3 above the New Jersey state median of 11.8:1, indicating larger average class loads than typical schools in the state.
Knollwood Elementary School is a lower-poverty, mid-sized elementary school in Lake Hiawatha, New Jersey, enrolling 394 students.
Class loads run somewhat heavier than typical: 13.1:1 puts it in the larger third of New Jersey schools by student-teacher ratio.
Its free-meal eligibility rate of 18.4% lands close to the New Jersey typical range, neither a high- nor low-need campus by this measure.
With 394 students, its enrollment sits close to the New Jersey median campus size.
Its Resource Investment Index lands in the lower third of 2,501 scored New Jersey schools.
Among 666 similarly sized, similarly resourced-need New Jersey schools statewide, it ranks #539, in the lower tier once campus size and economic need are matched.
Its student body is led by Asian (51%) and White (24%) (diversity index 65/100).
Counselor availability sits well past the ASCA benchmark, roughly 394 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 21.8% of students chronically absent per the 2021-22 civil-rights collection.
Parsippany-Troy Hills Township School District also operates Parsippany Hills High School (1,035 students) and Brooklawn Middle School (925 students) alongside Knollwood 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
Knollwood 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 | 13.1:1 | ▲ 11% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 18.4% | ▼ 38% | 29.6% | 51.7% |
| Enrollment | 394 | top 56% | - | - |
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: Asian at 51.3% of enrollment.
Simpson diversity index - at 64.6, Knollwood Elementary School is more mixed than the New Jersey school average of 51.2.
District-wide per-pupil expenditure for Parsippany-Troy Hills Township School District, which includes Knollwood 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 |
|---|---|---|---|
| Parsippany Hills High School | Larger | Similar economic need | Lower S:T ratio |
| Brooklawn Middle School | Larger | Lower economic need | Lower S:T ratio |
| Parsippany High School | Larger | Similar economic need | Lower S:T ratio |
| Central Middle School | Larger | Similar economic need | Lower S:T ratio |
| Lake Hiawatha Elementary School | Similar size | Lower economic need | Similar S:T ratio |
Comparisons are relative to Knollwood 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 Knollwood 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.
Knollwood Elementary School has 394 students enrolled. It is an elementary school in Lake Hiawatha, NJ.
The student-teacher ratio at Knollwood Elementary School is 13.1:1, which is 11% higher than the New Jersey average of 11.8:1 and 17% lower than the national average of 15.7:1.
18.4% of students at Knollwood Elementary School are eligible for free lunch, compared to the New Jersey average of 29.6%.
The largest demographic group at Knollwood Elementary School is Asian at 51.3% of enrollment, in Lake Hiawatha, NJ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.6/100.
Knollwood 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).
Knollwood Elementary School earns 46/100 on the Resource Investment Index, with class sizes larger than 76% 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 Knollwood Elementary School, Parsippany-Troy Hills Township School District also operates Parsippany Hills High School (1,035 students), Brooklawn Middle School (925 students), and Parsippany High School (900 students). See the Parsippany-Troy Hills 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, “Knollwood Elementary School, Lake Hiawatha 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/knollwood-elementary-school-nj
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