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SCHOOL COMMUNITY·MOUNT VERNON SCHOOL DISTRICT·NCES 362010001843

EDWARD WILLIAMS SCHOOL

9 UNION LN, MOUNT VERNON, NY 10553 · (914) 665-5070 · Westchester County
GRADES PK–08ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL398 STUDENTS
Enrollment
398
Elementary
DISTRICT 360 · STATE 443
Student : Teacher
11.8:1
34 FTE teachers
DISTRICT 10.4:1 · STATE 12.8:1
Free / Reduced Lunch
68%
270 students
DISTRICT 64% · 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
Pre-K
34
Kindergarten
65
Grade 1
54
Grade 2
38
Grade 3
38
Grade 4
40
Grade 5
38
Grade 6
45
Grade 7
14
Grade 8
31
Ungraded
1
Student demographics
White
82%
DISTRICT 5% · STATE 39%
Hispanic
11128%
DISTRICT 32% · STATE 31%
Black
26667%
DISTRICT 59% · STATE 16%
Asian
41%
DISTRICT 2% · STATE 10%
Two+
82%
DISTRICT 1% · 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
20251%
Female
19649%

Discussions

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
26.0%
NY avg 58.3% . +3.0pp since 2023
Math
24.3%
NY avg 57.4% . -4.9pp since 2023
Source: NYS Assessments. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of NY schools after controlling for student poverty
Actual proficiency
25.1%
composite math + reading, all grades
Predicted
50.0%
based on NY schools with similar FRL share
Beats by
-24.9pp
below 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
398
-38 (-9%) vs 2017
Student : Teacher
11.8:1
was 14.5:1
% White
2%
was 2%
% Hispanic
28%
was 19%
% Black
67%
was 77%
% Asian
1%
was 1%
Source: NCES Common Core of Data

About EDWARD WILLIAMS SCHOOL

EDWARD WILLIAMS SCHOOL, a moderately sized primary school in MOUNT VERNON, New York, part of MOUNT VERNON SCHOOL DISTRICT, serves 398 students, covering grades pre-K through 8.

Across the 16 schools in MOUNT VERNON SCHOOL DISTRICT (6,654 students total), EDWARD WILLIAMS SCHOOL accounts for its share of the district's footprint.

Looking at the student body, EDWARD WILLIAMS SCHOOL shows that 67% of the student body identifies as Black; the rest comes out to 28% Hispanic, 2% White, 2% multiracial. By comparison, Westchester County as a whole is about 14% Black, so the school skews considerably more Black than its surroundings.

Looking at the economic backdrop, EDWARD WILLIAMS SCHOOL logs 34 full-time-equivalent teachers, putting the student-to-teacher ratio at about 11.8:1. Statewide, the average ratio sits near 12.8:1, putting EDWARD WILLIAMS SCHOOL tighter than the state norm the norm. About 68% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Westchester County runs at roughly 38%, so the school's eligibility rate is higher than the surrounding baseline.

With demographic context factored in, EDWARD WILLIAMS SCHOOL is in the bottom 10% of New York public schools. The BeatsExpectations model predicts schools with this FRL share to land around 50.0%; EDWARD WILLIAMS SCHOOL posts 25.1%, -24.9 points below that line.

In the area at large, the surrounding county (Westchester County) shows that median household earnings sit near $118,976, roughly 53% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. EDWARD WILLIAMS SCHOOL is one of 255 public schools in Westchester County (combined enrollment of about 140,968 students).

The closest other public school is CECIL H PARKER SCHOOL, roughly 0.4 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts EDWARD WILLIAMS SCHOOL at 9th of 9; the average score across the group is 47.2%.

The school occupies a commuter-belt site.

Trend over the last 7 years. Over the past 7-year window, the student count ticked down 9%: 436 students in 2018 compared to 398 in 2025. Black enrollment moved from 77% to 67% across the same window. The student-to-teacher ratio pulled in from 14.5:1 in 2018 to 11.8:1 today.

Inside the community feed, the page collects discussion, questions, and updates around classroom updates, athletics, and weather closures. Parents, students, alumni, and staff are welcome to weigh in.

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
EDWARD WILLIAMS SCHOOL
District
MOUNT VERNON SCHOOL DISTRICT
Address
9 UNION LN, MOUNT VERNON, NY 10553
Phone
(914) 665-5070
County
Westchester County
Level
Elementary
Grade range
PK–08
Total enrollment
398
Teachers (FTE)
34
Student–teacher ratio
11.8:1
Free/Reduced lunch
270 (68%)
Locale
21-Suburb: Large
NCES ID
362010001843
Charter school
No
Virtual school
No

Related schools

Other schools in MOUNT VERNON SCHOOL DISTRICT
Other schools in MOUNT VERNON
Nearby schools

Frequently asked questions

About EDWARD WILLIAMS SCHOOL
What is the total enrollment at EDWARD WILLIAMS SCHOOL?
EDWARD WILLIAMS SCHOOL enrolls approximately 398 students in grades PK-08.
What age range does EDWARD WILLIAMS SCHOOL serve?
EDWARD WILLIAMS SCHOOL serves students from grade PK through grade 08.
How many students per teacher at EDWARD WILLIAMS SCHOOL?
Approximately 11.8:1 students per teacher at EDWARD WILLIAMS SCHOOL.
How diverse is EDWARD WILLIAMS SCHOOL?
EDWARD WILLIAMS SCHOOL reports a student body of 2% White, 28% Hispanic, 67% Black, 1% Asian, 2% Two or more.
Who oversees EDWARD WILLIAMS SCHOOL?
EDWARD WILLIAMS SCHOOL is overseen by MOUNT VERNON 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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