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SCHOOL COMMUNITY·MAMARONECK UNION FREE SCHOOL DISTRICT·NCES 361824001648

MAMARONECK HIGH SCHOOL

1000 W BOSTON POST RD, MAMARONECK, NY 10543 · (914) 220-3100 · Westchester County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,764 STUDENTS
Enrollment
1,764
High
DISTRICT 920 · STATE 668
Student : Teacher
13.5:1
131 FTE teachers
DISTRICT 12.4:1 · STATE 11.0:1
Free / Reduced Lunch
23%
405 students
DISTRICT 19% · STATE 58%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 9
470
Grade 10
403
Grade 11
454
Grade 12
412
Ungraded
25
Student demographics
White
1,10663%
DISTRICT 64% · STATE 39%
Hispanic
46526%
DISTRICT 24% · STATE 31%
Black
563%
DISTRICT 2% · STATE 16%
Asian
553%
DISTRICT 3% · STATE 10%
Two+
764%
DISTRICT 6% · STATE 4%
Native American
20%
DISTRICT 0% · STATE 1%
Pacific Islander
20%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
93153%
Female
83147%

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
83.0%
NY avg 58.3% . -9.0pp since 2023
Math
77.0%
NY avg 57.4% . +5.0pp since 2023
Source: NYS Assessments. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
83.0%
composite math + reading, all grades
Predicted
66.5%
based on NY schools with similar FRL share
Beats by
+16.4pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
1,764
+160 (+10%) vs 2017
Student : Teacher
13.5:1
was 15.5:1
% White
63%
was 70%
% Hispanic
26%
was 20%
% Black
3%
was 3%
% Asian
3%
was 5%
Source: NCES Common Core of Data

About MAMARONECK HIGH SCHOOL

Set in MAMARONECK, New York, MAMARONECK HIGH SCHOOL is a sizable four-year high school, operated by MAMARONECK UNION FREE SCHOOL DISTRICT. It teaches 1,764 students across grades 9 through 12. By comparison, New York's public schools average about 668 students each, so MAMARONECK HIGH SCHOOL sits 164% larger than that benchmark.

MAMARONECK HIGH SCHOOL is one of 6 schools operated by MAMARONECK UNION FREE SCHOOL DISTRICT, a district that educates 5,520 students overall.

For racial and ethnic makeup, MAMARONECK HIGH SCHOOL reports that the largest single group is White, at 63% of enrollment. The remainder breaks down as 26% Hispanic, 4% multiracial, 3% Black, 3% Asian. The wider county runs roughly 52% White, putting the school's mix meaningfully more White than the area baseline.

Looking at the economic backdrop, Staff filings list 131 full-time-equivalent teachers, which works out to roughly 13.5:1 students per teacher. That figure is higher than the state norm's 11.0:1 average. About 23% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, Westchester County runs at roughly 38%, so the school's eligibility rate is below the surrounding baseline.

With demographic context factored in, MAMARONECK HIGH SCHOOL tracks the demographic baseline. The model predicts 66.5% given the school's FRL share; actual proficiency is 83.0%.

In the area at large, ACS estimates for Westchester County put the typical household earns roughly $118,976 per year, about 53% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 6%. MAMARONECK HIGH SCHOOL is one of 255 public schools in Westchester County (combined enrollment of about 140,968 students).

CENTRAL SCHOOL is the nearest neighboring public school, about 0.3 miles from this campus. Counting just inside five miles, 8 other public schools cluster around MAMARONECK HIGH SCHOOL. On composite proficiency, MAMARONECK HIGH SCHOOL comes 3rd of 7 in the immediate cluster, higher than the nearby-schools average of 75.6%.

MAMARONECK HIGH SCHOOL operates from an outer-ring location.

Over the past 7-year window. MAMARONECK HIGH SCHOOL's enrollment has grew 10% since 2018, when it stood at 1,604 (now 1,764). The White share of enrollment shrank from 70% to 63% over that span. The student-to-teacher ratio fell from 15.5:1 in 2018 to 13.5:1 today.

On allk12, members of the MAMARONECK HIGH SCHOOL community share and discuss science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.

Westchester County at a glance

View full county profile
Population
999,677
Census ACS
Median income
$118,976
Household, ACS
Bachelor's+
53%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
255
140,968 students

Quick facts

School name
MAMARONECK HIGH SCHOOL
District
MAMARONECK UNION FREE SCHOOL DISTRICT
Address
1000 W BOSTON POST RD, MAMARONECK, NY 10543
Phone
(914) 220-3100
County
Westchester County
Level
High
Grade range
09–12
Total enrollment
1,764
Teachers (FTE)
131
Student–teacher ratio
13.5:1
Free/Reduced lunch
405 (23%)
Locale
21-Suburb: Large
NCES ID
361824001648
Charter school
No
Virtual school
No

Related schools

Other schools in MAMARONECK UNION FREE SCHOOL DISTRICT
Other schools in MAMARONECK
Nearby schools

Frequently asked questions

About MAMARONECK HIGH SCHOOL
How large is MAMARONECK HIGH SCHOOL?
MAMARONECK HIGH SCHOOL enrolls approximately 1,764 students in grades 09-12.
Is MAMARONECK HIGH SCHOOL an elementary, middle, or high school?
MAMARONECK HIGH SCHOOL is a high school covering grades 09-12.
How many teachers does MAMARONECK HIGH SCHOOL have?
MAMARONECK HIGH SCHOOL employs 131 FTE teachers, for a student-to-teacher ratio of 13.5:1.
How diverse is MAMARONECK HIGH SCHOOL?
MAMARONECK HIGH SCHOOL reports a student body of 63% White, 26% Hispanic, 3% Black, 3% Asian, 4% Two or more.
Who oversees MAMARONECK HIGH SCHOOL?
MAMARONECK HIGH SCHOOL is overseen by MAMARONECK UNION FREE SCHOOL DISTRICT in Westchester County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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