Enrollment
1,764
New York · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 361824001648
Mamaroneck High School — Mamaroneck, NY
Federal NCES profile for Mamaroneck High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 58/100.
👥 Class size 48
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 61
📋 Attendance 53
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Mamaroneck Union Free School District · New York
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
128.0
Federal CCD staff survey
Students per teacher
13:1
vs 11.7:1 New York avg
+11% 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
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Mamaroneck High School reports 1,764 enrolled students to the National Center for Education Statistics (NCES) alongside 128.0 full-time-equivalent teachers, producing a 13:1 student-teacher ratio. That figure sits 11% above the New York state mean of 11.7:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 18% lower, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 21.5% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 62% below the New York average and 58% below the national baseline. The school offers 21 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 196 students per counselor, meeting the American School Counselor Association recommendation of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 18.6% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Mamaroneck Union Free School District spends $30,648 per pupil district-wide, above the New York average of $29,727 and above the national average of $19,490. Revenue comes 87.6% from local sources (property taxes), 8.1% from the state, and 4.3% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 58/100 (C), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Mamaroneck High School compares
Cross-validating school-level NCES values against New York state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13:1 | ▲ 11% | 11.7:1 | 15.9:1 |
| Free-lunch eligible | 21.5% | ▼ 62% | 56.2% | 51.8% |
| Enrollment | 1,764 | top 99% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
21.5%
free-lunch eligible
— 62% below the New York average of 56.2%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13:1
students per teacher
— 11% above state mean
Top 72% in New York — lower ratio than 28% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
18.6%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$30,648
per pupil, district-wide
— above New York avg of $29,727
Above the U.S. public-school average, reflecting 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
Enrollment 1,764 Top 99% in New York — larger than 1% of 4,812 state schools
Teachers (FTE) 128.0
Students per teacher 13:1 +11% vs state
Free-lunch eligible 21.5% -62% vs state
NCES ID 361824001648
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.
Programs & staff
AP courses offered 21
Counselors (FTE) 9.0
Students per counselor 196:1
Discipline & special education
Chronically absent 18.6%
In-school suspensions 19
Out-of-school suspensions 34
Funding & spending
District-wide per-pupil expenditure for Mamaroneck Union Free School District, which includes Mamaroneck High School.
$30,648
Per student
+3%
vs New York
Avg $29,727
+57%
vs U.S.
Avg $19,490
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.
Other Schools in This District
- Enrollment
- 1,284
- Students per teacher
- 10.9:1
- Enrollment
- 689
- Students per teacher
- 15.6:1
- Enrollment
- 652
- Students per teacher
- 13.8:1
- Enrollment
- 611
- Students per teacher
- 10.4:1
- Enrollment
- 520
- Students per teacher
- 13.2:1
Similar high schools in Mamaroneck
1 comparable high schools (grades 9-12) serving the same city.
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
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 13:1, which is 11% higher than the New York average of 11.7:1 and 18% lower than the national average of 15.9:1.
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%. The school serves a diverse student body in MAMARONECK, NY.
What is the Resource Investment Index for Mamaroneck High School?
Mamaroneck High School has a Resource Investment Index of 58/100 (C) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.