Enrollment
452
New York · 2024-25 NCES data
Elementary school (grades K-5) · Holbrook, NY
Grundy Avenue School
Federal NCES profile for Grundy Avenue School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataElementary school (grades K-5)NCES 362535003501
👥 S:T ratio 48
🌟 Gifted program 30
📋 Attendance 50
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Grundy Avenue School earns 43/100 on the Resource Investment Index, with class sizes larger than 70% of New York schools.
- #2 of 4
- elementary schools in Holbrook · Resource Index
- 43
- Resource Index · Typical
- 12.9:1
- large classes for New York
- 18.5%
- free-lunch eligible
Grundy Avenue School has class sizes larger than 70% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Grundy Avenue School ranks #2 of 4 elementary schools in Holbrook, NY.
School address
District: Sachem Central School District · New York
NCES ID 362535003501 Verify on NCES CCD record →
Teachers (FTE)
35.0
Federal CCD staff survey
Students per teacher
12.9:1
vs 11.8:1 New York avg
+9% vs state
Free-lunch eligible
18.5%
vs 56.2% New York avg
-67% vs state
Student-teacher ratio in context
How Grundy Avenue School compares with New York and U.S. medians
What stands out at Grundy Avenue School
Grundy Avenue School is a lower-poverty, mid-sized elementary school in Holbrook, New York, enrolling 452 students.
Class loads run somewhat heavier than typical: 12.9:1 puts it in the larger third of New York schools by student-teacher ratio.
Comparatively few students face economic hardship here, 18.5% free-meal eligibility runs 67% below the New York average.
With 452 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 658 statewide peers matched on enrollment and economic need, it ranks mid-pack at #372.
Its student body is led by White (68%) and Hispanic or Latino (22%) (diversity index 49/100).
Attendance runs somewhat below the norm, with 19.9% of students chronically absent per the 2021-22 civil-rights collection.
Sachem Central School District also operates Sachem High School North (2,008 students) and Sachem High School East (1,984 students) alongside Grundy Avenue 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 Grundy Avenue School compares
Grundy Avenue School on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.9:1 | ▲ 9% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 18.5% | ▼ 67% | 56.2% | 51.7% |
| Enrollment | 452 | top 45% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.9:1
Leaner classes than 68% of US schools, among the more generously staffed nationally.
452
Bigger than 55% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
18.5%
free-lunch eligible
- 67% below the New York average of 56.2%
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
12.9:1
students per teacher
- 9% above state mean
Top 70% in New York - lower ratio than 30% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
19.9%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$26,466
per pupil, district-wide
- above New York avg of $26,410
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.2 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
6
in-school suspensions + 5 out-of-school
Suspension rate: 1.3 per 100 students. Combined in-school and out-of-school rate: 2.4 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 67.5%
Hispanic or Latino 21.9%
Asian 4.4%
Two or More 3.8%
African American 1.8%
Native Hawaiian / Pacific Islander 0.4%
American Indian / Alaska Native 0.2%
Largest group: White at 67.5% of enrollment.
Student-body diversity index 49.3/100
Simpson diversity index - at 49.3, Grundy Avenue School is more mixed than the New York school average of 45.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Sachem Central School District, which includes Grundy Avenue School.
$26,466
Per student
+0%
vs New York
Avg $26,410
+60%
vs U.S.
Avg $16,593
Revenue mix
Local 51.8%
State 42.1%
Federal 6.1%
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 Grundy Avenue School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sachem High School North | Larger | Similar economic need | Similar S:T ratio |
| Sachem High School East | Larger | Similar economic need | Lower S:T ratio |
| Seneca Middle School | Larger | Similar economic need | Lower S:T ratio |
| Sagamore Middle School | Larger | Similar economic need | Lower S:T ratio |
| Samoset Middle School | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Grundy Avenue School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,008
- Students per teacher
- 12:1
- Resource Index
- 51/100
- Enrollment
- 1,984
- Students per teacher
- 11.3:1
- Resource Index
- 50/100
- Enrollment
- 928
- Students per teacher
- 11.3:1
- Resource Index
- 42/100
- Enrollment
- 893
- Students per teacher
- 11:1
- Resource Index
- 41/100
- Enrollment
- 847
- Students per teacher
- 10.2:1
- Resource Index
- 44/100
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~452 students)
Similar student-teacher ratio (~12.9:1)
Next steps
Verify locally before acting on Grundy Avenue School's federal record.
- Compare Grundy Avenue School against another school. Compare schools
- Sachem Central 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 Grundy Avenue School
How many students attend Grundy Avenue School?
Grundy Avenue School has 452 students enrolled. It is an elementary school in Holbrook, NY.
What is the student-teacher ratio at Grundy Avenue School?
The student-teacher ratio at Grundy Avenue School is 12.9:1, which is 9% higher than the New York average of 11.8:1 and 18% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Grundy Avenue School?
18.5% of students at Grundy Avenue School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Grundy Avenue School?
The largest demographic group at Grundy Avenue School is White at 67.5% of enrollment, in Holbrook, NY.
What is the Resource Investment Index for Grundy Avenue School?
Grundy Avenue School has a Resource Investment Index of 43/100 (typical 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).
How does Grundy Avenue School rank among elementary schools in Holbrook?
By Resource Investment Index, Grundy Avenue School ranks #2 of 4 elementary schools in Holbrook, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Holbrook on the city page.
Is Grundy Avenue School a good school?
Grundy Avenue School earns 43/100 on the Resource Investment Index, with class sizes larger than 70% of New York 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 Sachem Central School District?
Besides Grundy Avenue School, Sachem Central School District also operates Sachem High School North (2,008 students), Sachem High School East (1,984 students), and Seneca Middle School (928 students). See the Sachem Central 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.