Enrollment
355
Elementary
DISTRICT 360 · STATE 443
SCHOOL COMMUNITY·MOUNT VERNON SCHOOL DISTRICT·NCES 362010006729
NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL
250 GRAMATAN AVE, MOUNT VERNON, NY 10550 · (914) 358-2720 · Westchester County
GRADES PK–08ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL355 STUDENTS
C+
allk12 Grade
Scored higher than 41% of New York public elementary schools
- C+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New York public elementary schools
Student : Teacher
11.9:1
30 FTE teachers
DISTRICT 10.4:1 · STATE 12.8:1
Free / Reduced Lunch
66%
235 students
DISTRICT 64% · 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, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 13 | 4% |
| Kindergarten | 32 | 9% |
| Grade 1 | 45 | 13% |
| Grade 2 | 43 | 12% |
| Grade 3 | 34 | 10% |
| Grade 4 | 39 | 11% |
| Grade 5 | 39 | 11% |
| Grade 6 | 39 | 11% |
| Grade 7 | 40 | 11% |
| Grade 8 | 31 | 9% |
This year's kindergarten class (32) is about the same size as its 8th grade class (31).
Student demographics
57%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 54% · STATE 72% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
QUIET COMMUNITY
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START A DISCUSSIONTest scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)English Language Arts
50.0%
NY avg 58.3% . +7.0pp since 2023
Math
47.0%
NY avg 57.4% . +5.0pp since 2023
What this means: On the NYS Assessments, New York's statewide test, about 50 of every 100 students at this school read and write at grade level and about 47 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are up about 7 points since 2023, while math scores are up about 5 points.
NYS Assessments results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 50.0% | 47.0% |
| 2023-24 | 43.0% | 42.0% |
% Proficient (Level 3 + Level 4), all students and all tested grades.
Source: NYS Assessments. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
44.1%
composite math + reading, all grades
Predicted
50.6%
based on NY schools with similar FRL share
Beats by
-6.5pp
below demographic expectation
What this means: About 44% of students here test proficient in math and reading, compared with the roughly 51% typical for New York schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New York's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL
NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL's state test result (44.1% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL this school | 355 | 66.2% | 44.1% |
| MOUNT VERNON LEADERSHIP ACADEMY MOUNT VERNON | 382 | 65.7% | 38.7% |
| GRAND AVENUE ELEMENTARY SCHOOL NORTH BALDWIN | 306 | 61.4% | 46.9% |
| LINCOLN SCHOOL MOUNT VERNON | 470 | 63.4% | 58.0% |
| PENINSULA PREPARATORY ACADEMY CHARTER SCHOOL FAR ROCKAWAY | 313 | 74.4% | 85.3% |
| HAMILTON SCHOOL MOUNT VERNON | 320 | 73.4% | 40.9% |
Matched among New York elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL ranks
Among elementary schools| Measure | This school | In New York | In Westchester County |
|---|---|---|---|
| State test proficiency ranked highest first | 44.1% | #1,430 of 2,335 | #82 of 120 |
| Math proficiency ranked highest first | 47.0% | #1,574 of 2,342 ▲ 38 | #95 of 127 ▲ 9 |
| Reading proficiency ranked highest first | 50.0% | #1,343 of 2,343 ▼ 184 | #81 of 127 ▲ 3 |
| Enrollment ranked largest first | 355 | #1,634 of 2,585 | #104 of 146 |
| Students per teacher ranked fewest first | 11.9:1 | #1,227 of 2,338 | #70 of 141 |
| Diversity index ranked most diverse first | 57.1% | #868 of 2,388 | #47 of 141 |
| Free and reduced lunch ranked highest share first | 66.2% | #1,050 of 2,534 | #26 of 137 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
355
+15 (+4%) vs 2020
Student : Teacher
11.9:1
was 12.1:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 355 | 29.9 | 11.9:1 | 66% (235) |
| 2023-24 | 378 | 33.8 | 11.2:1 | 61% (232) |
| 2022-23 | 367 | 28.9 | 12.7:1 | 69% (253) |
| 2020-21 | 340 | 28 | 12.1:1 | 80% (271) |
Source: NCES Common Core of Data. Rows are the federal collections on file for NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL.
About NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL
At 250 GRAMATAN AVE in MOUNT VERNON, New York, NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL operates as a small elementary school. It serves 355 students in pre-K through 8.
MOUNT VERNON SCHOOL DISTRICT enrolls 6,654 students in 16 schools, including NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL.
By race and ethnicity, the largest group at NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL is Black (49%). Enrollment also includes 43% Hispanic and 6% White. The school's Black share is 35 points above the 14% share among Westchester County residents. By the diversity index, NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL comes in at 57%.
Federal records show a student-to-teacher ratio of 11.9:1 at NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL, with 29.9 full-time-equivalent teachers. The 12.8:1 average for elementary schools in New York is higher than this school's figure. Free and reduced-price lunch eligibility, a common measure of family income, is 66%. Across public schools in Westchester County, the average is 38%.
The allk12 Grade for NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL is C+. Compared with New York public elementary schools, the school scored higher than 41% on a mix of test scores, poverty-adjusted results, and recent trend.
Based on its free or reduced-price lunch share, the BeatsExpectations model predicts an average proficiency rate on state tests of 50.6% for NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL. The school posts 44.1%, 6.5 points below the prediction.
County data help place the school in context: in Westchester County, median household income is about $118,976, a bachelor's degree or higher is held by about 53% of adults, and the poverty rate is about 6%. The public schools of Westchester County number 255 and enroll about 140,968.
The nearest public school is INTELLECTUS PREPARATORY CHARTER SCHOOL, at about 0.1 miles. There are at least 8 other public schools within five miles. Of the 9 nearby schools with scores, including this one, NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL is 5th on average proficiency.
NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL has an NCES locale of Suburb: Large.
NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL saw enrollment rise 4% between 2020-21 and 2024-25.
The discussion area below is open to posts about enrollment questions, class placement, and PTA news. Reviews and ratings from people who know the school are welcome.
Westchester County at a glance
View full county profilePopulation
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
Related schools
Other schools in MOUNT VERNON SCHOOL DISTRICT
- MOUNT VERNON HIGH SCHOOLHigh · 1,062 students
- MOUNT VERNON STEAM ACADEMYHigh · 747 students
- LINCOLN SCHOOLElementary · 470 students
- DENZEL WASHINGTON SCHOOL-ARTSHigh · 427 students
- PENNINGTON SCHOOLElementary · 409 students
- GRAHAM SCHOOLElementary · 406 students
Other schools in MOUNT VERNON
- MOUNT VERNON HIGH SCHOOLHigh · 1,062 students
- MOUNT VERNON STEAM ACADEMYHigh · 747 students
- LINCOLN SCHOOLElementary · 470 students
- DENZEL WASHINGTON SCHOOL-ARTSHigh · 427 students
- PENNINGTON SCHOOLElementary · 409 students
- GRAHAM SCHOOLElementary · 406 students
Nearby schools
- INTELLECTUS PREPARATORY CHARTER SCHOOL0.1 mi · 97
- MOUNT VERNON STEAM ACADEMY0.2 mi · 747
- MOUNT VERNON LEADERSHIP ACADEMY0.2 mi · 382
- LINCOLN SCHOOL0.3 mi · 470
- HAMILTON SCHOOL0.5 mi · 320
- AMANI PUBLIC CHARTER SCHOOL0.5 mi · 314
Frequently asked questions
About NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOLWhat is the total enrollment at NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL?
NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL enrolls approximately 355 students in grades PK-08.
What age range does NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL serve?
NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL serves students from grade PK through grade 08.
How many students per teacher at NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL?
Approximately 11.9:1 students per teacher at NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL.
How diverse is NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL?
NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL reports a student body of 6% White, 43% Hispanic, 49% Black, 1% Asian, 1% Two or more.
Who oversees NELSON MANDELA/DR HOSA ZOLLICOFFER SCHOOL?
NELSON MANDELA/DR HOSA ZOLLICOFFER 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.