Enrollment
567
New York · 2024-25 NCES data
Elementary school (grades K-5) · Central Islip, NY
Marguerite L Mulvey School
Federal NCES profile for Marguerite L Mulvey School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataElementary school (grades K-5)NCES 360687000477
👥 S:T ratio 42
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Marguerite L Mulvey School earns 24/100 on the Resource Investment Index, with class sizes larger than 84% of New York schools.
- #3 of 4
- elementary schools in Central Islip · Resource Index
- 24
- Resource Index · Lower
- 14.5:1
- large classes for New York
- 78.9%
- free-lunch eligible
Marguerite L Mulvey School has class sizes larger than 84% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Marguerite L Mulvey School ranks #3 of 4 elementary schools in Central Islip, NY.
School address
District: Central Islip Union Free School District · New York
NCES ID 360687000477 Verify on NCES CCD record →
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
14.5:1
vs 11.8:1 New York avg
+23% vs state
Free-lunch eligible
78.9%
vs 56.2% New York avg
+40% vs state
Student-teacher ratio in context
How Marguerite L Mulvey School compares with New York and U.S. medians
What stands out at Marguerite L Mulvey School
Marguerite L Mulvey School is a high-poverty, mid-sized elementary school in Central Islip, New York, enrolling 567 students.
Class loads run somewhat heavier than typical: 14.5:1 puts it in the larger third of New York schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 78.9% of students eligible for free meals.
Enrollment of 567 puts it in the larger third of New York schools by headcount.
Its Resource Investment Index lands in the lower third of 4,801 scored New York schools.
Against 888 statewide peers matched on enrollment and economic need, it ranks mid-pack at #590.
Its student body is predominantly Hispanic or Latino (85% of enrollment) (diversity index 27/100).
Chronic absenteeism is elevated: 45.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Central Islip Union Free School District also operates Central Islip Senior High School (2,615 students) and Ralph Reed School (1,192 students) alongside Marguerite L Mulvey 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 Marguerite L Mulvey School compares
Marguerite L Mulvey 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 | 14.5:1 | ▲ 23% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 78.9% | ▲ 40% | 56.2% | 51.7% |
| Enrollment | 567 | top 30% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.5:1
Leaner classes than 52% of US schools, a middle-of-the-pack class size.
567
Bigger than 69% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
78.9%
free-lunch eligible
- 40% above the New York average of 56.2%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
14.5:1
students per teacher
- 23% above state mean
Top 84% in New York - lower ratio than 16% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
45.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$28,339
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
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
Hispanic or Latino 84.7%
African American 9.7%
Two or More 2.8%
Asian 1.8%
White 0.9%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 84.7% of enrollment.
Student-body diversity index 27.2/100
Simpson diversity index - at 27.2, Marguerite L Mulvey School is less mixed than the New York school average of 45.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Central Islip Union Free School District, which includes Marguerite L Mulvey School.
$28,339
Per student
+7%
vs New York
Avg $26,410
+71%
vs U.S.
Avg $16,593
Revenue mix
Local 37.5%
State 53.6%
Federal 8.9%
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 Marguerite L Mulvey School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Central Islip Senior High School | Larger | Similar economic need | Higher S:T ratio |
| Ralph Reed School | Larger | Similar economic need | Similar S:T ratio |
| Charles a Mulligan Elementary School | Larger | Similar economic need | Similar S:T ratio |
| Andrew T Morrow School | Larger | Similar economic need | Similar S:T ratio |
| Francis J O'neill School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Marguerite L Mulvey School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,615
- Students per teacher
- 17.8:1
- Resource Index
- 41/100
- Enrollment
- 1,192
- Students per teacher
- 14.5:1
- Resource Index
- 23/100
- Enrollment
- 997
- Students per teacher
- 15.3:1
- Resource Index
- 23/100
- Enrollment
- 821
- Students per teacher
- 13.9:1
- Resource Index
- 25/100
- Enrollment
- 600
- Students per teacher
- 14.3:1
- Resource Index
- 25/100
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 (~567 students)
Similar student-teacher ratio (~14.5:1)
Next steps
Verify locally before acting on Marguerite L Mulvey School's federal record.
- Compare Marguerite L Mulvey School against another school. Compare schools
- Central Islip Union Free 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 Marguerite L Mulvey School
How many students attend Marguerite L Mulvey School?
Marguerite L Mulvey School has 567 students enrolled. It is an elementary school in Central Islip, NY.
What is the student-teacher ratio at Marguerite L Mulvey School?
The student-teacher ratio at Marguerite L Mulvey School is 14.5:1, which is 23% higher than the New York average of 11.8:1 and 8% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Marguerite L Mulvey School?
78.9% of students at Marguerite L Mulvey School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Marguerite L Mulvey School?
The largest demographic group at Marguerite L Mulvey School is Hispanic or Latino at 84.7% of enrollment, in Central Islip, NY.
What is the Resource Investment Index for Marguerite L Mulvey School?
Marguerite L Mulvey School has a Resource Investment Index of 24/100 (lower 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 Marguerite L Mulvey School rank among elementary schools in Central Islip?
By Resource Investment Index, Marguerite L Mulvey School ranks #3 of 4 elementary schools in Central Islip, 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 Central Islip on the city page.
Is Marguerite L Mulvey School a good school?
Marguerite L Mulvey School earns 24/100 on the Resource Investment Index, with class sizes larger than 84% 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 Central Islip Union Free School District?
Besides Marguerite L Mulvey School, Central Islip Union Free School District also operates Central Islip Senior High School (2,615 students), Ralph Reed School (1,192 students), and Charles a Mulligan Elementary School (997 students). See the Central Islip Union Free School District district page for the complete list.
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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.