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SCHOOL COMMUNITY·YONKERS CITY SCHOOL DISTRICT·NCES 363192004264

SCHOOL 21

100 LEE AVE, YONKERS, NY 10705 · (914) 376-8435 · Westchester County
GRADES PK–06ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL328 STUDENTS
Enrollment
328
Elementary
DISTRICT 484 · STATE 443
Student : Teacher
15.5:1
21 FTE teachers
DISTRICT 18.0:1 · STATE 12.8:1
Free / Reduced Lunch
66%
217 students
DISTRICT 69% · STATE 58%
Community
0
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
32
Kindergarten
46
Grade 1
42
Grade 2
44
Grade 3
49
Grade 4
35
Grade 5
34
Grade 6
46
Student demographics
White
5818%
DISTRICT 13% · STATE 39%
Hispanic
20061%
DISTRICT 63% · STATE 31%
Black
3310%
DISTRICT 15% · STATE 16%
Asian
268%
DISTRICT 5% · STATE 10%
Two+
82%
DISTRICT 3% · STATE 4%
Native American
31%
DISTRICT 0% · STATE 1%
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
16450%
Female
16450%

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
41.0%
NY avg 58.3% . +2.0pp since 2023
Math
41.0%
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
39.3%
composite math + reading, all grades
Predicted
50.7%
based on NY schools with similar FRL share
Beats by
-11.4pp
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
328
-132 (-29%) vs 2017
Student : Teacher
15.5:1
was 20.0:1
% White
18%
was 23%
% Hispanic
61%
was 53%
% Black
10%
was 14%
% Asian
8%
was 7%
Source: NCES Common Core of Data

About SCHOOL 21

SCHOOL 21 is an elementary campus of compact scale in YONKERS, New York, run under YONKERS CITY SCHOOL DISTRICT, teacheing 328 students in grades pre-K through 6. By comparison, New York's public schools average about 443 students each, so SCHOOL 21 sits 26% smaller than that benchmark.

YONKERS CITY SCHOOL DISTRICT runs 42 schools in total, collectively educating 24,376 students. SCHOOL 21 is one of those campuses.

For racial and ethnic makeup, SCHOOL 21 shows that the largest single group is Hispanic, at 61% of enrollment. Beyond that, the school shows 18% White, 10% Black, 8% Asian, 2% multiracial. By comparison, Westchester County as a whole is about 27% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

Looking at school resources, The school lists 21 full-time-equivalent teachers, for a student-teacher ratio near 15.5:1. The state averages around 12.8:1, so this campus is higher than the state norm typical. Roughly 66% of students at SCHOOL 21 qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Westchester County (around 38%), the school's rate is meaningfully above typical.

With demographic context factored in, SCHOOL 21 sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 50.7%; this one delivers 39.3%.

In the broader community, 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 SCHOOL 21 is one.

LAS HERMANAS MIRABAL COMMUNITY SCHOOL is the nearest neighboring public school, about 0.6 miles from this campus. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts SCHOOL 21 at 7th of 8; the average score across the group is 51.8%.

SCHOOL 21 operates from a commuter-belt location.

Over the past 7-year window. Over the past 7-year window, the student count edged down 29%: 460 students in 2018 compared to 328 in 2025. Hispanic enrollment moved from 53% to 61% across the same window. The student-to-teacher ratio fell from 20.0:1 in 2018 to 15.5:1 today.

On the community side, recent activity here tends to focus on science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.

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
SCHOOL 21
District
YONKERS CITY SCHOOL DISTRICT
Address
100 LEE AVE, YONKERS, NY 10705
Phone
(914) 376-8435
County
Westchester County
Level
Elementary
Grade range
PK–06
Total enrollment
328
Teachers (FTE)
21
Student–teacher ratio
15.5:1
Free/Reduced lunch
217 (66%)
Locale
21-Suburb: Large
NCES ID
363192004264
Charter school
No
Virtual school
No

Related schools

Other schools in YONKERS CITY SCHOOL DISTRICT
Other schools in YONKERS
Nearby schools

Frequently asked questions

About SCHOOL 21
How large is SCHOOL 21?
SCHOOL 21 enrolls approximately 328 students in grades PK-06.
What age range does SCHOOL 21 serve?
SCHOOL 21 serves students from grade PK through grade 06.
How many students per teacher at SCHOOL 21?
Approximately 15.5:1 students per teacher at SCHOOL 21.
What is the student diversity at SCHOOL 21?
Student demographics at SCHOOL 21 are roughly 18% White, 61% Hispanic, 10% Black, 8% Asian, 2% Two or more.
Who oversees SCHOOL 21?
SCHOOL 21 is overseen by YONKERS CITY 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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