Average
#2702 of 4,742 schools in NY
School 21
Elementary School · YONKERS CITY SCHOOL DISTRICT
100 LEE AVE, Yonkers, NY 10705
Enrollment
306
Student-Teacher
14.6:1
Score
6.0
Grades
Pre-K – 6th
Enrollment
306
Student-Teacher
14.6:1
Score
6.0
Grades
Pre-K – 6th
Data vintage
2022-23
Data vintage2022-23
How this school compares
New York schools
#2,702 of 4,742
In Yonkers
#17 of 41
public schools
In district
#18 of 40
YONKERS CITY SCHOOL DISTRICT
Academic growth
7.2 / 10
Very Good
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School 21
Elementary School in Yonkers · grades Pre-K – 6th. Start here, then compare fit against nearby and district options.
Stein Yeshiva of Lincoln Park
0.5 mi away. Use as a geographic alternative in the same move search.
Las Hermanas Mirabal Community School
0.6 mi away. Use as a geographic alternative in the same move search.
About School 21
School 21 is a public elementary school in Yonkers, NY, part of YONKERS CITY SCHOOL DISTRICT. School 21 serves approximately 306 students, and covers grades Pre-K-6th, and has a 14.6:1 student-teacher ratio. School 21 has a current MySchoolScout rating of 6.0 out of 10 and ranks #2,702 of 4,742 schools in NY.
Structured state assessment records for School 21 show 30% math proficiency (multi-year average, 2009-2022) and 35% reading/ELA proficiency (multi-year average, 2009-2022).
- This school 6.0 · Average
- District avg 5.5
- NY avg 5.9
What Parents Should Know
58% of students at School 21 were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
School 21 — Students at School 21 score 35% proficient, which is below what's typical for similar communities (expected: 50%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
56.5%
Students qualifying for federal meal assistance
Test Scores NY EDFACTS (2021-22)
Based on 36 test records from NY state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.2/10.
How School 21 Compares
See how School 21 performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Location
100 LEE AVE, Yonkers, NY 10705
Nearby Alternatives
Families considering School 21 may also want to explore other elementary schools in the area. ST BARNABAS ELEMENTARY SCHOOL (rated 7.8/10, 0.9 miles away, in nearby Bronx), which scores notably higher. Another option is ST MARK'S LUTHERAN SCHOOL (rated 7.2/10, 0.8 miles away), which scores notably higher. Additionally, PS 19 JUDITH K WEISS (rated 6.7/10, 1.0 miles away, in nearby Bronx), which scores slightly higher. For more schools in Yonkers, see our Yonkers schools guide .
Nearby Schools
20 within 1.6 mi| School | Distance | Rating |
|---|---|---|
| STEIN YESHIVA OF LINCOLN PARK Yonkers | 0.5 mi | — |
| LAS HERMANAS MIRABAL COMMUNITY SCHOOL Yonkers | 0.6 mi | 5.6 |
| LINCOLN HIGH SCHOOL Yonkers | 0.9 mi | 7.0 |
| ST MARK'S LUTHERAN SCHOOL Yonkers | 0.8 mi | 7.2 |
| PS 19 JUDITH K WEISS Bronx | 1.0 mi | 6.7 |
| ST BARNABAS ELEMENTARY SCHOOL Bronx | 0.9 mi | 7.8 |
| ST BARNABAS HIGH SCHOOL Bronx | 1.0 mi | 6.1 |
| YONKERS MONTESSORI ACADEMY Yonkers | 0.9 mi | 7.9 |
| YONKERS MIDDLE SCHOOL Yonkers | 1.2 mi | 5.5 |
| YONKERS HIGH SCHOOL Yonkers | 1.2 mi | 8.1 |
| NEW TESTAMENT CHURCH SCHOOL Yonkers | 1.2 mi | — |
| ST JOHN THE BAPTIST Yonkers | 1.1 mi | 4.9 |
| SCHOOL 23 Yonkers | 1.4 mi | 3.2 |
| ELLA FITZGERALD ACADEMY Yonkers | 1.4 mi | 5.1 |
| CESAR E CHAVEZ SCHOOL Yonkers | 1.4 mi | 4.7 |
| ST MARGARET OF CORTONA SCHOOL Bronx | 1.3 mi | 6.4 |
| EUGENIO MARIA DE HOSTOS MICROSOCIETY SCHOOL Yonkers | 1.4 mi | 6.7 |
| BRONX DANCE ACADEMY SCHOOL Bronx | 1.7 mi | 5.6 |
| PS 103 HECTOR FONTANEZ Bronx | 1.5 mi | 5.1 |
| ENRICO FERMI SCHOOL FOR THE PERFORMING ARTS Yonkers | 1.6 mi | 5.4 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 10705 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$68,616
Median Home Value
$445,600
Median Rent
$1,602/mo
Population
40,390
College Educated
30.1%
Homeownership
36.4%
Avg Commute
38.2 min
Poverty Rate
18%
Median Age
38.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ALBERTUS W BECKER SCHOOL Selkirk, NY | 6.0 |
| BAY RIDGE CATHOLIC ACADEMY Brooklyn, NY | 6.0 |
| BOLIVAR-RICHBURG ELEMENTARY SCHOOL Richburg, NY | 6.0 |
| BREWERTON ELEMENTARY SCHOOL Central Square, NY | 6.0 |
| BRIDGEPORT ELEMENTARY SCHOOL Bridgeport, NY | 6.0 |
| DUTCH LANE SCHOOL Hicksville, NY | 6.0 |
Frequently Asked Questions
Common questions about School 21
What grades does School 21 serve?
School 21 serves students in grades Pre-K through 6th.
How many students attend School 21?
School 21 has an enrollment of approximately 306 students.
What is the student-teacher ratio at School 21?
The student-teacher ratio at School 21 is 14.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does School 21 rank in NY?
School 21 ranks #2,702 of 4,742 schools in NY.
What is School 21's MySchoolScout rating?
School 21 has a current MySchoolScout rating of 6.0 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at School 21?
Based on loaded state assessment records, School 21 has 30% math proficiency (multi-year average, 2009-2022) and 35% reading/ELA proficiency (multi-year average, 2009-2022).
Is School 21 a charter school?
No, School 21 is not a charter school. It is a traditional public school operated by the local school district.
Is School 21 a Title I school?
No, School 21 is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for School 21?
56.5% of students at School 21 qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Pre-K – 6th
- Enrollment
- 306
- Student-Teacher Ratio
- 14.6:1
- Teachers (FTE)
- 21
- Free/Reduced Lunch
- 56.5%
- Type
- regular
- Setting
- Large Suburb
- County
- Westchester County
- Chronic Absenteeism (SY 2022-23)
- 57.8%
- Phone
- (914) 376-8435
Resources & Links
District
YONKERS CITY SCHOOL DISTRICT- District Enrollment
- 24,339
- Schools in District
- 40
- Per-Pupil Spending
- $28,185
- District Rank
- #18 of 40
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
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