P.S. 107 John W. Kimball (15K107) is a public school in District 15, Park Slope, Brooklyn, serving grades pre-K, K–5. In 2025, 90% of tested students were proficient in ELA and 91% were proficient in math (NYC DOE). Enrollment was 538 students in 2024–25 (NYC DOE). The average K–5 class size was 26.1 students in 2025–26 (NYC DOE).
2025 ELA proficiency is 90%, higher than most elementary schools in the district and citywide. Average class size is 26.1, larger than most elementary schools in the district and citywide. 2025 Math proficiency is 91%, higher than most elementary schools in the district and citywide.
| Year | Subject | Proficient | Students tested |
|---|---|---|---|
| 2025 | ELA | 90% | 230 |
| 2025 | Math | 91% | 228 |
| 2024 | ELA | 81% | 193 |
| 2024 | Math | 90% | 193 |
| 2023 | ELA | 82% | 189 |
| 2023 | Math | 86% | 192 |
| 2022 | ELA | 74% | 176 |
| 2022 | Math | 81% | 184 |
| 2019 | ELA | 82% | 238 |
| 2019 | Math | 89% | 239 |
| 2018 | ELA | 85% | 262 |
| 2018 | Math | 89% | 263 |
Proficiency means Level 3 or above.
Admissions for NYC public schools go through MySchools.
NYC DOE · 2024–25
| Measure | P.S. 107 John W. Kimball | P.S. 10 Brooklyn & Pre-K 280: Magnet School of Math, Science and Design Technology |
|---|---|---|
| 2025 ELA proficient | 90% (+8 pp vs 2024) | 85% (+9 pp vs 2024) |
| 2025 Math proficient | 91% (+1 pp vs 2024) | 82% (+1 pp vs 2024) |
| Average K–5 class size (2025–26) | 26.1 | 24.8 |
| Enrollment (2024–25) | 538 | 844 |
| Student–teacher ratio (2025–26) | 14.6 | 14.1 |
| Family satisfaction | 95% | 91% |
| Principal trust | 97% | 96% |
| Teacher trust | 97% | 96% |
| Leadership | 95% | 98% |
| Distance between schools | 0.29 mi | |
P.S. 107 John W. Kimball has higher Math proficiency than P.S. 10 Brooklyn & Pre-K 280: Magnet School of Math, Science and Design Technology (91% vs 82%) and higher family satisfaction (95% vs 91%).
| School | ELA | Math | Class size | Distance |
|---|---|---|---|---|
| P.S. 10 Brooklyn & Pre-K 280: Magnet School of Math, Science and Design Technology | 85% | 82% | 24.8 | 0.3 mi |
| P.S. 039 Henry Bristow | 92% | 94% | 20.8 | 0.4 mi |
| P.S. 295 | 64% | 58% | 11.9 | 0.4 mi |
| P.S. 154 - The Windsor Terrace School | 82% | 88% | 20.4 | 0.5 mi |
| P.S. 124 Silas B. Dutcher | 33% | 25% | 16.1 | 0.6 mi |
| P.S. 321 William Penn | 89% | 90% | 22.2 | 0.6 mi |
| The Maurice Sendak Community School | 81% | 81% | 17.9 | 0.7 mi |
| P.S. 130 The Parkside | 69% | 66% | 22.2 | 1.0 mi |
Source: NYC DOE / NYSED, 2025
pre-K, K–5
Admissions for NYC public schools go through MySchools.
90%
91%
26.1 students in K–5 (2025–26).