NELSON MANDELA HIGH SCHOOL
- FTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- DBeats 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 high schools
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 29 | 21% |
| Grade 10 | 34 | 25% |
| Grade 11 | 47 | 34% |
| Grade 12 | 25 | 18% |
| Ungraded | 3 | 2% |
Test scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)What this means: On the NYS Assessments, New York's statewide test, about 43 of every 100 students at this school read and write at grade level and about 22 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are down about 13 points since 2023, while math scores are up about 12 points.
NYS Assessments results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 43.0% | 22.0% |
| 2023-24 | 56.0% | 10.0% |
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 27% of students here test proficient in math and reading, compared with the roughly 41% 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%.
Schools most like NELSON MANDELA HIGH SCHOOL
NELSON MANDELA HIGH SCHOOL's state test result (26.7% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| NELSON MANDELA HIGH SCHOOL this school | 138 | 93.5% | 26.7% |
| BROOKLYN ACADEMY HIGH SCHOOL BROOKLYN | 108 | 92.6% | 32.5% |
| OLYMPUS ACADEMY BROOKLYN | 181 | 89.5% | 62.7% |
| ASPIRATIONS DIPLOMA PLUS HIGH SCHOOL BROOKLYN | 131 | 85.5% | 41.5% |
| METROPOLITAN DIPLOMA PLUS HIGH SCHOOL BROOKLYN | 153 | 96.7% | 46.2% |
| DR SUSAN S MCKINNEY SECONDARY SCHOOL OF THE ARTS BROOKLYN | 132 | 92.4% | 27.5% |
Where NELSON MANDELA HIGH SCHOOL ranks
Among high schools| Measure | This school | In New York | In Kings County |
|---|---|---|---|
| State test proficiency ranked highest first | 26.7% | #1,099 of 1,135 | #126 of 137 |
| Math proficiency ranked highest first | 22.0% | #987 of 1,109 ▲ 97 | #102 of 132 ▲ 19 |
| Reading proficiency ranked highest first | 43.0% | #1,034 of 1,135 ▼ 139 | #111 of 137 ▼ 31 |
| Enrollment ranked largest first | 138 | #1,146 of 1,216 | #139 of 146 |
| Free and reduced lunch ranked highest share first | 93.5% | #123 of 1,167 | #25 of 144 |
| Enrollment change since 2017-18 ranked steepest decline first | -49.3% | #23 of 743 | #6 of 70 |
4-year change
SY 2020-21 vs SY 2024-25Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 138 | 25.7 | 5.4:1 | 93% (129) |
| 2023-24 | 144 | 18.8 | 7.7:1 | 92% (133) |
| 2022-23 | 133 | 18.4 | 7.2:1 | 88% (117) |
| 2020-21 | 183 | 22 | 8.3:1 | 87% (159) |
| 2017-18 | 272 | 20 | 13.6:1 | 79% (214) |
| 2015-16 | 216 | 14 | 15.4:1 | 70% (152) |
About NELSON MANDELA HIGH SCHOOL
The public high school NELSON MANDELA HIGH SCHOOL is located in BROOKLYN, New York. In all, 138 students attend the school in grades 9 through 12. That puts enrollment 79% below the 668-student average for high schools in New York.
NELSON MANDELA HIGH SCHOOL is one of 23 schools in NEW YORK CITY GEOGRAPHIC DISTRICT #16, which enrolls 5,175 students in total.
Black students account for 82% of the school's enrollment. The rest of enrollment is 14% Hispanic. Among all residents of Kings County, the Black share is about 28%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 31%.
NELSON MANDELA HIGH SCHOOL lists 25.7 full-time-equivalent teachers; that is about 5.4 students per teacher. The school's 5.4:1 compares with an average of 11.0:1 for high schools in New York. Free or reduced-price lunch covers 93% of the student body. That is 14 points above the 79% average for public schools in Kings County.
Among New York public high schools, NELSON MANDELA HIGH SCHOOL outscored 5%, which works out to a D on the allk12 Grade.
When test results are adjusted for free or reduced-price lunch eligibility, NELSON MANDELA HIGH SCHOOL is 13.9 points below its prediction. Actual: 26.7%. Predicted: 40.6%.
In Kings County, the median household earns about $80,263 a year, about 42% of adults have at least a bachelor's degree, and the poverty rate is about 15%. Across Kings County, 583 public schools serve about 291,697 students.
RESEARCH AND SERVICE HIGH SCHOOL, less than a tenth of a mile away, is the closest public school. Other public schools within five miles number at least 8. NELSON MANDELA HIGH SCHOOL is 7th of 9 nearby schools by average proficiency rate.
Federal data place NELSON MANDELA HIGH SCHOOL in the City: Large locale, which means it is inside a principal city with a population of 250,000 or more.
Over 4 years, enrollment decreased by 45 students, from 183 to 138. There were fewer students per teacher in 2024-25 (5.4:1) than in 2020-21 (8.3:1).
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Kings County at a glance
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