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SCHOOL COMMUNITY·MAMARONECK UNION FREE SCHOOL DISTRICT·NCES 361824001645

CHATSWORTH AVENUE SCHOOL

34 CHATSWORTH AVE, LARCHMONT, NY 10538 · (914) 220-3500 · Westchester County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL652 STUDENTS
Enrollment
652
Elementary
DISTRICT 618 · STATE 443
Student : Teacher
13.4:1
49 FTE teachers
DISTRICT 12.4:1 · STATE 12.8:1
Free / Reduced Lunch
6%
36 students
DISTRICT 19% · STATE 58%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Kindergarten
104
Grade 1
115
Grade 2
102
Grade 3
96
Grade 4
113
Grade 5
122
Student demographics
White
49977%
DISTRICT 64% · STATE 39%
Hispanic
6410%
DISTRICT 24% · STATE 31%
Black
71%
DISTRICT 2% · STATE 16%
Asian
234%
DISTRICT 3% · STATE 10%
Two+
579%
DISTRICT 6% · STATE 4%
Pacific Islander
10%
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
33652%
Female
31548%

Discussions

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
90.0%
NY avg 58.3% . +9.0pp since 2023
Math
89.0%
NY avg 57.4% . +0.0pp 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
85.4%
composite math + reading, all grades
Predicted
73.0%
based on NY schools with similar FRL share
Beats by
+12.5pp
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
652
-74 (-10%) vs 2017
Student : Teacher
13.4:1
was 16.9:1
% White
77%
was 80%
% Hispanic
10%
was 10%
% Black
1%
was 1%
% Asian
4%
was 4%
Source: NCES Common Core of Data

About CHATSWORTH AVENUE SCHOOL

CHATSWORTH AVENUE SCHOOL is one of the middle-of-the-pack elementary campuss in LARCHMONT, New York, part of MAMARONECK UNION FREE SCHOOL DISTRICT, with 652 students on its rolls from grades K through 5. That puts it 47% bigger than the typical public school in New York, which averages around 443 students.

MAMARONECK UNION FREE SCHOOL DISTRICT runs 6 schools in total, collectively educating 5,520 students. CHATSWORTH AVENUE SCHOOL is one of those campuses.

Looking at the student body, CHATSWORTH AVENUE SCHOOL records that White students make up the majority at 77%. Other groups include 10% Hispanic, 9% multiracial, 4% Asian. By comparison, Westchester County as a whole is about 52% White, so the school skews visibly more White than its surroundings.

Looking at the economic backdrop, Staff filings list 49 full-time-equivalent teachers, which works out to roughly 13.4:1 students per teacher. That tracks the state average closely. Around 6% of the student body qualifies for free or reduced-price meals, often used as a Title I proxy. Set against Westchester County (around 38%), the school's rate is south of typical.

With demographic context factored in, CHATSWORTH AVENUE SCHOOL performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 73.0%, the actual is 85.4%, a residual of +12.5 points.

Zooming out to the county, ACS estimates for Westchester County put the typical household earns roughly $118,976 per year, roughly 53% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. In all, Westchester County runs 255 public schools (combined enrollment of about 140,968 students), of which CHATSWORTH AVENUE SCHOOL is one.

The closest other public school is HOMMOCKS SCHOOL, roughly 0.5 miles away. Counting just inside five miles, 8 other public schools cluster around CHATSWORTH AVENUE SCHOOL. On composite proficiency, CHATSWORTH AVENUE SCHOOL comes 1st of 8 in the immediate cluster, above the nearby-schools average of 67.8%.

Geographically, the school is in a residential area.

Five-year trend. Over the past 7-year window, the student count fell 10%: 726 students in 2018 compared to 652 in 2025. Class-load math has pulled in: from 16.9:1 in 2018 to 13.4:1 in 2025.

Within the allk12 community for this school, the page collects discussion, questions, and updates around enrollment questions, classroom assignments, and PTA news. Members of the school community can share what they know.

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
CHATSWORTH AVENUE SCHOOL
District
MAMARONECK UNION FREE SCHOOL DISTRICT
Address
34 CHATSWORTH AVE, LARCHMONT, NY 10538
Phone
(914) 220-3500
County
Westchester County
Level
Elementary
Grade range
KG–05
Total enrollment
652
Teachers (FTE)
49
Student–teacher ratio
13.4:1
Free/Reduced lunch
36 (6%)
Locale
21-Suburb: Large
NCES ID
361824001645
Charter school
No
Virtual school
No

Related schools

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

Frequently asked questions

About CHATSWORTH AVENUE SCHOOL
What is the total enrollment at CHATSWORTH AVENUE SCHOOL?
CHATSWORTH AVENUE SCHOOL enrolls approximately 652 students in grades KG-05.
What grades does CHATSWORTH AVENUE SCHOOL serve?
CHATSWORTH AVENUE SCHOOL serves grades KG-05.
What is the student-teacher ratio at CHATSWORTH AVENUE SCHOOL?
The student-to-teacher ratio at CHATSWORTH AVENUE SCHOOL is approximately 13.4:1 (49 FTE teachers).
What is the racial breakdown of students at CHATSWORTH AVENUE SCHOOL?
At CHATSWORTH AVENUE SCHOOL, the student body is approximately 77% White, 10% Hispanic, 1% Black, 4% Asian, 9% Two or more.
Is CHATSWORTH AVENUE SCHOOL public or private?
CHATSWORTH AVENUE SCHOOL is a public K-12 school, overseen by MAMARONECK UNION FREE SCHOOL DISTRICT.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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