Enrollment
1,764
New York · 2024-25 NCES data
High school (grades 9-12) · Mamaroneck, NY
Mamaroneck High School
Federal NCES profile for Mamaroneck High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 58/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 361824001648
👥 S:T ratio 45
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 61
📋 Attendance 53
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mamaroneck High School earns 58/100 on the Resource Investment Index, with class sizes larger than 79% of New York schools. It is also one of the largest schools in New York.
- #3 of 6
- public schools in Mamaroneck · Resource Index
- 58
- Resource Index · Higher
- 13.8:1
- large classes for New York
- 21.5%
- free-lunch eligible
Mamaroneck High School has class sizes larger than 79% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Mamaroneck High School ranks #3 of 6 public schools in Mamaroneck, NY.
School address
District: Mamaroneck Union Free School District · New York
NCES ID 361824001648 Verify on NCES CCD record →
Teachers (FTE)
128.0
Federal CCD staff survey
Students per teacher
13.8:1
vs 11.8:1 New York avg
+17% vs state
Free-lunch eligible
21.5%
vs 56.2% New York avg
-62% vs state
Student-teacher ratio in context
How Mamaroneck High School compares with New York and U.S. medians
What stands out at Mamaroneck High School
Mamaroneck High School is a large high school in Mamaroneck, New York, enrolling 1,764 students.
Class loads run somewhat heavier than typical: 13.8:1 puts it in the larger third of New York schools by student-teacher ratio.
Comparatively few students face economic hardship here, 21.5% free-meal eligibility runs 62% below the New York average.
By headcount it is one of the larger campuses in New York, bigger than 99% of state schools at 1,764 students.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 106 statewide peers matched on enrollment and economic need, it ranks mid-pack at #58.
Its student body is led by White (63%) and Hispanic or Latino (26%) (diversity index 53/100).
On the academic-pipeline side it reports 21 Advanced Placement courses.
Counselor coverage is strong, about 196 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 18.6% of students chronically absent per the 2021-22 civil-rights collection.
Mamaroneck Union Free School District also operates Hommocks School (1,284 students) and Murray Avenue School (689 students) alongside Mamaroneck High 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 Mamaroneck High School compares
Mamaroneck High 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 | 13.8:1 | ▲ 17% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 21.5% | ▼ 62% | 56.2% | 51.7% |
| Enrollment | 1,764 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.8:1
Leaner classes than 59% of US schools, a middle-of-the-pack class size.
1,764
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
21.5%
free-lunch eligible
- 62% 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
13.8:1
students per teacher
- 17% above state mean
Top 79% in New York - lower ratio than 21% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
18.6%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$25,761
per pupil, district-wide
- below 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
Counselors9.0 FTE
Per 196 students, the combined health-and-guidance staffing load for this school.
Discipline context
19
in-school suspensions + 34 out-of-school
Suspension rate: 1.1 per 100 students. Combined in-school and out-of-school rate: 3.0 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 62.8%
Hispanic or Latino 26.4%
Two or More 4.3%
African American 3.2%
Asian 3.1%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 62.8% of enrollment.
Student-body diversity index 53.2/100
Simpson diversity index - at 53.2, Mamaroneck High School is more mixed than the New York school average of 45.5.
Programs
AP courses offered 21
Funding & spending
District-wide per-pupil expenditure for Mamaroneck Union Free School District, which includes Mamaroneck High School.
$25,761
Per student
-2%
vs New York
Avg $26,410
+55%
vs U.S.
Avg $16,593
Revenue mix
Local 87.6%
State 8.1%
Federal 4.3%
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 Mamaroneck High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Hommocks School | Smaller | Similar economic need | Lower S:T ratio |
| Murray Avenue School | Smaller | Lower economic need | Higher S:T ratio |
| Chatsworth Avenue School | Smaller | Lower economic need | Similar S:T ratio |
| Mamaroneck Avenue School | Smaller | Higher economic need | Lower S:T ratio |
| Central School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Mamaroneck High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,284
- Students per teacher
- 11.2:1
- Resource Index
- 54/100
- Enrollment
- 689
- Students per teacher
- 15.3:1
- Resource Index
- 50/100
- Enrollment
- 652
- Students per teacher
- 14.2:1
- Resource Index
- 51/100
- Enrollment
- 611
- Students per teacher
- 9.3:1
- Resource Index
- 43/100
- Enrollment
- 520
- Students per teacher
- 13.3:1
- Resource Index
- 50/100
Similar high 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 (~1,764 students)
Next steps
Verify locally before acting on Mamaroneck High School's federal record.
- Compare Mamaroneck High School against another school. Compare schools
- Mamaroneck 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 Mamaroneck High School
How many students attend Mamaroneck High School?
Mamaroneck High School has 1,764 students enrolled. It is a high school in Mamaroneck, NY.
What is the student-teacher ratio at Mamaroneck High School?
The student-teacher ratio at Mamaroneck High School is 13.8:1, which is 17% higher than the New York average of 11.8:1 and 12% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Mamaroneck High School?
21.5% of students at Mamaroneck High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Mamaroneck High School?
The largest demographic group at Mamaroneck High School is White at 62.8% of enrollment, in Mamaroneck, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.2/100.
What is the Resource Investment Index for Mamaroneck High School?
Mamaroneck High School has a Resource Investment Index of 58/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mamaroneck High School rank among public schools in Mamaroneck?
By Resource Investment Index, Mamaroneck High School ranks #3 of 6 public 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 public schools in Mamaroneck on the city page.
Is Mamaroneck High School a good school?
Mamaroneck High School earns 58/100 on the Resource Investment Index, with class sizes larger than 79% of New York schools. It is also one of the largest schools in New York. 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 Mamaroneck Union Free School District?
Besides Mamaroneck High School, Mamaroneck Union Free School District also operates Hommocks School (1,284 students), Murray Avenue School (689 students), and Chatsworth Avenue School (652 students). See the Mamaroneck Union Free 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.