P.S. 105 The Blythebourne (20K105) is a public school in District 20, Borough Park, Brooklyn, serving grades K–5. In 2026, 58% of tested students were proficient in reading and 87% were proficient in math (NYC DOE). Enrollment was 1050 students in 2025–26 (NYC DOE). The average K–5 class size was 21 students in 2025–26 (NYC DOE).
Visit school websiteThe one thing to remember
2026 math proficiency is 87%, higher than most NYC elementary schools, including those with similar economic need.
Also worth knowing: Reading is down 9 points since 2023, while citywide reading fell 2 points; higher than most NYC elementary schools with similar economic need.
100%
of parents trust the principal
100%
trust their child's teachers
99%
satisfied with the education overall
NYC School Survey 2026. 95% of families answered.
Students here gain more than at most schools serving similar students
Impact score: 0.59 · 75th 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
58%
students scored at Level 3 or 4
576 students tested
61 students tested
515 students tested
Mathematics
87%
students scored at Level 3 or 4
599 students tested
61 students tested
538 students tested
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 | 53% | 82% |
| 2019 | 59% | 82% |
| 2022 | 63% | 76% |
| 2023 | 67% | 85% |
| 2024 | 65% | 85% |
| 2025 | 71% | 89% |
| 2026 | 58% | 87% |
Proficiency means scoring at Level 3 or above. Test scores are one measure of a school, not the whole experience.
Economic need index: 83%0.2 mi away
Economic need index: 79%0.8 mi away
Economic need index: 87%0.9 mi away
Economic need index: 78%0.6 mi away
Economic need index: 88%
Economic need index: 91%0.3 mi away
Economic need index: 89%0.3 mi away
Economic need index: 75%1.0 mi away
Economic need index: 88%
Economic need index: 83%0.2 mi away
Economic need index: 79%0.8 mi away
Economic need index: 89%0.3 mi away
Economic need index: 91%0.3 mi away
Economic need index: 78%0.6 mi away
Economic need index: 87%0.9 mi away
Economic need index: 75%1.0 mi away
| Measure | P.S. 105 The Blythebourne | The School For Future Leaders |
|---|---|---|
| 2026 reading proficient | 58% (-14 points vs 2025) | 63% (-9 points vs 2025) |
| 2026 math proficient | 87% (-2 points vs 2025) | 84% (+1 points vs 2025) |
| Average K–5 class size (2025–26) | 21.0 | 23.9 |
| Enrollment (2025–26) | 1050 | 497 |
| Student–teacher ratio (2025–26) | 11.8 | 12.8 |
| Family satisfaction (2026) | 99% | 98% |
| Principal trust (2026) | 100% | 98% |
| Teacher trust (2026) | 100% | 98% |
| Leadership (2026) | 100% | 98% |
| Distance between schools | 0.2 mi | |
P.S. 105 The Blythebourne has lower reading proficiency than The School For Future Leaders (58% vs 63%); 2026 reading is higher than most NYC elementary schools with similar economic need.
Enrollment
1050 students
K–5 · down 242 over five years
NYC DOE · 2025–26
Class size
21
children in the average K–5 class; about 11.8 students per teacher (2025–26)
NYC DOE · 2025–26
English learners
33%
was 35% in 2024–25
NYC DOE · 2025–26
Economic need
93% of students live in poverty (2025–26)
Economic need index: 88% — the measure we use to compare similar schools.
NYC DOE · 2025–26
Special education
12%
of students here are in special education
NYC DOE · 2025–26
Student body: 3% White, 5% Hispanic, 92% Asian, 0% Black, 0% multiracial, 47% female, 53% male.
Economic need index: 88% — 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. Check the attendance zone shown above; zones can change and do not guarantee a seat.
1031 59 STREET
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.