M.S. 51 William Alexander
288 4 Street
District 15 · NYC Public Schools · Middle school · Grades 6–8 (2025–2026)
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Enrollment
1,037 students in school year 2025–2026. Change since 2018–2019: -98 students (-8.6%).
| School year | Students |
|---|---|
| 2018–2019 | 1,135 |
| 2019–2020 | 1,150 |
| 2020–2021 | 1,143 |
| 2021–2022 | 1,077 |
| 2022–2023 | 1,024 |
| 2023–2024 | 971 |
| 2024–2025 | 1,035 |
| 2025–2026 | 1,037 |
Spending per student
Latest reported, school year 2024–2025: $26,814 per student (state & local $24,368 · federal $2,445).
Same-year medians: District 15 $33,952 · citywide $33,315
| School year | Total | Federal | State & local | Students (state count) |
|---|---|---|---|---|
| 2018–2019 | $12,059 | $259 | $11,799 | 1134 |
| 2019–2020 | $12,222 | $243 | $11,979 | 1149 |
| 2020–2021 | $12,247 | $346 | $11,901 | 1146 |
| 2021–2022 | $14,552 | $956 | $13,596 | 1081 |
| 2022–2023 | $15,696 | $504 | $15,192 | 1026 |
| From 2023–2024, figures include a share of citywide costs, such as central offices. Not comparable with earlier years. | ||||
| 2023–2024 | $27,003 | $3,128 | $23,876 | 963 |
| 2024–2025 | $26,814 | $2,445 | $24,368 | 1040 |
Other schools in District 15, Brooklyn
- Brooklyn Collaborative Studies
- Brooklyn Frontiers High School
- Brooklyn High School of the Arts
- Cobble Hill School of American Studies
- Cyberarts Studio Academy
- Digital Arts and Cinema Technology High School
- Global Innovators Academy
- I.S. 136 Charles O. Dewey
- J.H.S. 088 Peter Rouget
- John Jay School for Law
- Khalil Gibran International Academy
- M.S. 442 Carroll Gardens School for Innovation
- M.S. 839
- Magnet School of Math, Science and Design Technolo
- Millennium Brooklyn HS
- New Voices School of Academic & Creative Arts
- P.S. 001 The Bergen
- P.S. 015 Patrick F. Daly
- P.S. 024
- P.S. 029 John M. Harrigan
- P.S. 032 Samuel Mills Sprole
- P.S. 038 The Pacific
- P.S. 039 Henry Bristow
- P.S. 058 The Carroll
- P.S. 094 The Henry Longfellow
- P.S. 107 John W. Kimball
- P.S. 124 Silas B. Dutcher
- P.S. 130 The Parkside
- P.S. 131 Brooklyn
- P.S. 169 Sunset Park
- P.S. 172 Beacon School of Excellence
- P.S. 230 Doris L. Cohen
- P.S. 261 Zipporiah Mills
- P.S. 295
- P.S. 321 William Penn
- P.S. 958
- Park Slope Collegiate
- Pre-K Center at Bishop Ford School Site
- Red Hook Neighborhood School
- South Brooklyn Community High School
- Sunset Park Avenues Elementary School
- Sunset Park High School
- Sunset Park Prep
- The Boerum Hill School for International Studies
- The Brooklyn New School, P.S. 146
- The Elizabeth Jennings School for Bold Explorers
- The Exploratory School
- The Little Brooklyn Pre-K Center
- The Maurice Sendak Community School
- The School of Creativity and Innovation
- The Windsor Terrace School
- West Brooklyn Community High School
NYC public schools, by the numbers: staff, pay, budget and English learners →
Sources: New York City Public Schools enrollment data and spending per student reported by the New York State Education Department. Missing years are not zero. Enrollment and spending are not school-quality ratings. How we check the data