Enrollment
611
New York · 2024-25 NCES data
Elementary school (grades K-5) · Mamaroneck, NY
Federal NCES profile for Mamaroneck Avenue School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
The verdict
Mamaroneck Avenue School earns 43/100 on the Resource Investment Index, with class sizes smaller than 79% of New York schools.
Mamaroneck Avenue School has class sizes smaller than 79% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Mamaroneck Avenue School ranks #1 of 3 elementary schools in Mamaroneck, NY.
NCES ID 361824001647 Verify on NCES CCD record →
Enrollment
611
New York · 2024-25 NCES data
Teachers (FTE)
66.0
Federal CCD staff survey
Students per teacher
9.3:1
vs 11.8:1 New York avg
-21% vs state
Free-lunch eligible
46.8%
vs 56.2% New York avg
-17% vs state
How Mamaroneck Avenue School compares with New York and U.S. medians
Smaller classes than state median
9.3:1 - 2.5 below the New York state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Mamaroneck Avenue School is neither an extreme outlier in enrollment nor in student-teacher ratio among New York schools. Its profile therefore turns on the other dimensions rather than on scale alone: economic need, counselor coverage, program access, attendance, and district finance. This middle placement is useful because it prevents the campus from being mislabeled as unusually large, small, crowded, or teacher-dense when the federal comparison does not support that claim.
Mamaroneck Avenue School falls within the wide middle of the New York distribution on both free-meal eligibility and the Resource Investment Index. Neither measure supplies an honest headline by itself. The useful distinctions are in the components: classroom staffing, counselor availability, attendance, gifted-program access, and district spending. Those fields can pull in opposite directions even when the overall percentile looks ordinary.
Mamaroneck Avenue School's 25.7% chronic-absence rate is more consequential than a generic staffing label: at least one quarter of students missed 10% or more of school days in the 2021-22 collection. That level can affect instruction, counseling demand, and continuity even when other reported resources look ordinary. The dataset records the scale of absence but not its causes, so it should prompt a current-year question rather than a conclusion about school management.
Mamaroneck Avenue School is a mid-sized elementary school in Mamaroneck, New York, enrolling 611 students.
Class sizes run a bit leaner than typical: 9.3:1 puts it in the smaller third of New York schools by student-teacher ratio.
Its free-meal eligibility rate of 46.8% lands close to the New York typical range, neither a high- nor low-need campus by this measure.
Enrollment of 611 puts it in the larger third of New York schools by headcount.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 721 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #178.
Its student body is led by Hispanic or Latino (53%) and White (34%) (diversity index 60/100).
Chronic absenteeism is elevated: 25.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Mamaroneck Union Free School District also operates Mamaroneck High School (1,764 students) and Hommocks School (1,284 students) alongside Mamaroneck 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
Mamaroneck 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 | 9.3:1 | ▼ 21% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 46.8% | ▼ 17% | 56.2% | 51.7% |
| Enrollment | 611 | top 25% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: Hispanic or Latino at 53.2% of enrollment.
Simpson diversity index - at 59.6, Mamaroneck Avenue School is more mixed than the New York school average of 45.5.
District-wide per-pupil expenditure for Mamaroneck Union Free School District, which includes Mamaroneck Avenue 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 |
|---|---|---|---|
| Mamaroneck High School | Larger | Lower economic need | Higher S:T ratio |
| Hommocks School | Larger | Lower economic need | Higher S:T ratio |
| Murray Avenue School | Similar size | Lower economic need | Higher S:T ratio |
| Chatsworth Avenue School | Similar size | Lower economic need | Higher S:T ratio |
| Central School | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Mamaroneck Avenue 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 York, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Mamaroneck Avenue 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.
Mamaroneck Avenue School has 611 students enrolled. It is an elementary school in Mamaroneck, NY.
The student-teacher ratio at Mamaroneck Avenue School is 9.3:1, which is 21% lower than the New York average of 11.8:1 and 41% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
46.8% of students at Mamaroneck Avenue School are eligible for free lunch, compared to the New York average of 56.2%.
The largest demographic group at Mamaroneck Avenue School is Hispanic or Latino at 53.2% of enrollment, in Mamaroneck, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.6/100.
Mamaroneck Avenue School has a Resource Investment Index of 43/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Mamaroneck Avenue School ranks #1 of 3 elementary schools in Mamaroneck, 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 Mamaroneck on the city page.
Besides Mamaroneck Avenue School, Mamaroneck Union Free School District also operates Mamaroneck High School (1,764 students), Hommocks School (1,284 students), and Murray Avenue School (689 students). See the Mamaroneck Union Free 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 July 2026.
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PlainSchools, “Mamaroneck Avenue School, Mamaroneck NY.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of July 2026. https://plainschools.com/schools/mamaroneck-avenue-school-ny
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