M.S. 839 (15K839) is a public school in District 15, Windsor Terrace, Brooklyn, serving grades 6–8. In 2026, 57% of tested students were proficient in reading and 51% were proficient in math (NYC DOE). Enrollment was 317 students in 2025–26 (NYC DOE).
The one thing to remember
2026 math proficiency is 51%, about typical for NYC middle schools and lower than most of those with similar economic need.
Also worth knowing: Trust in teachers (2026) is 98%, higher than most district middle schools.
97%
of parents trust the principal
98%
trust their child's teachers
94%
satisfied with the education overall
NYC School Survey 2026. 47% of families answered — treat as a partial picture.
Students here gain about as much as at other schools serving similar students
Impact score: 0.47 · 46th percentile
The DOE compares results with those of students with similar starting points and backgrounds.
View this school's official NYC DOE School Quality SnapshotReading
57%
students scored at Level 3 or 4
279 students tested
83 students tested
196 students tested
Mathematics
51%
students scored at Level 3 or 4
195 students tested
59 students tested
136 students tested
Grade 8 math not reported by the DOE.
Excludes charter schools. Weighted by students tested.
New York changed its grades 3–8 tests in 2023. Compare years from 2023 onward with each other, not with earlier years.
Citywide reading scores fell sharply in 2026; NYC Public Schools is reviewing the results. Source: NYC Public Schools
| Year | Reading | Math |
|---|---|---|
| 2018 | 59% | 55% |
| 2019 | 56% | — |
| 2022 | 60% | 39% |
| 2023 | 60% | 55% |
| 2024 | 60% | 59% |
| 2025 | 66% | 46% |
| 2026 | 57% | 51% |
Proficiency means scoring at Level 3 or above. Test scores are one measure of a school, not the whole experience.
Economic need index: 35%1.2 mi away
Economic need index: 41%0.8 mi away
Economic need index: 39%2.5 mi away
Economic need index: 47%1.8 mi away
Economic need index: 49%
Economic need index: 72%1.5 mi away
Economic need index: 85%1.8 mi away
Economic need index: 87%1.8 mi away
Economic need index: 86%1.8 mi away
Economic need index: 35%1.2 mi away
Economic need index: 41%0.8 mi away
Economic need index: 47%1.8 mi away
Economic need index: 39%2.5 mi away
Economic need index: 49%
Economic need index: 72%1.5 mi away
Economic need index: 86%1.8 mi away
Economic need index: 85%1.8 mi away
Economic need index: 87%1.8 mi away
| Measure | M.S. 839 | J.H.S. 062 Ditmas |
|---|---|---|
| 2026 reading proficient | 57% (-9 points vs 2025) | 44% (-8 points vs 2025) |
| 2026 math proficient | 51% (+5 points vs 2025) | 41% (-6 points vs 2025) |
| Enrollment (2025–26) | 317 | 811 |
| Student–teacher ratio (2025–26) | 11.3 | 11.6 |
| Family satisfaction (2026) | 94% | 91% |
| Principal trust (2026) | 97% | 96% |
| Teacher trust (2026) | 98% | 94% |
| Leadership (2026) | 98% | 95% |
| Distance between schools | 0.7 mi | |
M.S. 839 has higher reading proficiency than J.H.S. 062 Ditmas (57% vs 44%) and higher math proficiency (51% vs 41%).
Enrollment
317 students
6–8 · down 56 over five years
NYC DOE · 2025–26
Students per teacher
11.3
students per teacher
NYC DOE · 2025–26
English learners
7%
was 6% in 2024–25
NYC DOE · 2025–26
Economic need
47% of students live in poverty (2025–26)
Economic need index: 49% — the measure we use to compare similar schools.
NYC DOE · 2025–26
Special education
29%
of students here are in special education
NYC DOE · 2025–26
Student body: 42% White, 33% Hispanic, 11% Asian, 7% Black, 6% multiracial, 55% female, 45% male.
Economic need index: 49% — the measure we use to compare similar schools. It combines measures of students’ economic circumstances; it is not a measure of school quality.
NYC DOE · 2026 survey
NYC DOE · 2024–25
Admissions for NYC public schools go through MySchools. This school has no attendance zone; admission is through MySchools.
713 CATON AVENUE
Source: NYC DOE / NYSED, 2026 · School information · View this school's official NYC DOE School Quality Snapshot
Admissions for NYC public schools go through MySchools.