Average
#2815 of 4,739 schools in NY
MS 51 William Alexander
Middle School · NEW YORK CITY GEOGRAPHIC DISTRICT #15
350 5TH AVE, Brooklyn, NY 11215
Enrollment
963
Student-Teacher
14.8:1
Score
6.0
Grades
6th – 8th
Enrollment
963
Student-Teacher
14.8:1
Score
6.0
Grades
6th – 8th
Updated
2022-23
Updated 2022-23
How this school compares
In Brooklyn
#362 of 570
public schools
New York middle schools
#358 of 785
In district
#42 of 49
NEW YORK CITY GEOGRAPHIC DISTRICT #15
Equity
9.0 / 10
Exceptional
About MS 51 William Alexander
MS 51 William Alexander serves 963 middle school students in grades 6-8 in Brooklyn's affluent Park Slope area. With 65 full-time teachers, the school maintains a favorable 14.8:1 student-teacher ratio that allows for more individualized attention in the classroom. The school demonstrates strong academic performance, earning a MySchoolScout rating of 8.0 out of 10 and ranking in the 90th percentile statewide at #451 out of 4,758 New York schools.
Students particularly excel in English Language Arts, with 90% achieving proficiency or above across all grade levels. Math performance shows 66% of students meeting or exceeding proficiency standards, indicating solid achievement with continued room for growth in this subject area. MS 51 William Alexander sits in the heart of one of Brooklyn's most educated communities, where the median household income reaches $173,899 and 80% of residents hold bachelor's degrees or higher.
The neighborhood's low poverty rate of 5.9% reflects the area's economic stability. Located on 5th Avenue in ZIP code 11215, the school serves families in a vibrant urban setting known for its tree-lined streets, historic brownstones, and strong community engagement in education.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
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MS 51 William Alexander — Students at MS 51 William Alexander score 80% proficient, which is above what's typical for similar communities (expected: 54%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
64.2%
Students qualifying for federal meal assistance
Test Scores NY NYSED (2020-21)
Based on 9 test records from NY state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 5.3/10.
How MS 51 William Alexander Compares
See how MS 51 William Alexander performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 83% (2019) to 67% (2021). Reading/ELA proficiency has improved from 85% (2019) to 92% (2021).
Location
350 5TH AVE, Brooklyn, NY 11215
Nearby Alternatives
Families considering MS 51 William Alexander may also want to explore other middle schools in the area. MAURICE SENDAK COMMUNITY SCHOOL (THE) (rated 9.2/10, 0.2 miles away), which scores notably higher. Another option is PS 32 SAMUEL MILLS SPROLE (rated 9.1/10, 0.7 miles away), which scores notably higher. Additionally, PS 282 PARK SLOPE (rated 8.5/10, 0.5 miles away), which scores notably higher. For more schools in Brooklyn, see our Brooklyn schools guide .
Nearby Schools
20 within 0.8 mi| School | Distance | Rating |
|---|---|---|
| MAURICE SENDAK COMMUNITY SCHOOL (THE) Brooklyn | 0.2 mi | 9.2 |
| PS 39 HENRY BRISTOW Brooklyn | 0.3 mi | 7.7 |
| AL-MADINAH SCHOOL Brooklyn | 0.2 mi | 6.0 |
| PS 372 CHILDREN'S SCHOOL (THE) Brooklyn | 0.3 mi | 7.5 |
| JOHN JAY SCHOOL FOR LAW Brooklyn | 0.3 mi | 7.1 |
| PARK SLOPE COLLEGIATE Brooklyn | 0.3 mi | 7.8 |
| CYBERARTS STUDIO ACADEMY Brooklyn | 0.3 mi | 6.2 |
| MILLENNIUM BROOKLYN HIGH SCHOOL Brooklyn | 0.3 mi | 8.2 |
| PS 321 WILLIAM PENN Brooklyn | 0.3 mi | 6.0 |
| PS 124 SILAS B DUTCHER Brooklyn | 0.5 mi | 5.5 |
| PS 282 PARK SLOPE Brooklyn | 0.5 mi | 8.5 |
| PS 133 WILLIAM A BUTLER Brooklyn | 0.6 mi | 6.2 |
| ST SAVIOUR HIGH SCHOOL Brooklyn | 0.5 mi | 7.3 |
| PS 107 JOHN W KIMBALL Brooklyn | 0.7 mi | 7.5 |
| MS 266 PARK PLACE COMMUNITY MIDDLE SCHOOL Brooklyn | 0.6 mi | 8.3 |
| PS 77 Brooklyn | 0.6 mi | 7.1 |
| PS 32 SAMUEL MILLS SPROLE Brooklyn | 0.7 mi | 9.1 |
| MAGNET SCHOOL OF MATH SCIENCE & DESIGN TECHNOLOGY Brooklyn | 0.8 mi | 7.8 |
| HELLENIC CLASSICAL CHARTER SCHOOL Brooklyn | 0.8 mi | 5.3 |
| PS 295 Brooklyn | 0.8 mi | 6.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 11215 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$180,773
Median Home Value
$1,674,700
Median Rent
$2,803/mo
Population
70,922
College Educated
80.2%
Homeownership
40.9%
Avg Commute
38.5 min
Poverty Rate
6%
Median Age
37.4
Community Profile
The community surrounding MS 51 William Alexander has a median household income of $180,773. It is a well-educated community where 80% of adults hold a bachelor's degree or higher. The median home value in the area is $1,674,700, with a median rent of $2,803/month. The local poverty rate of 6.0% is relatively low. The average commute in the area is 39 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ICHABOD CRANE MIDDLE SCHOOL Valatie, NY | 6.0 |
| J WATSON BAILEY MIDDLE SCHOOL Kingston, NY | 6.0 |
| JHS 167 ROBERT F WAGNER New York, NY | 6.0 |
| JHS 67 LOUIS PASTEUR Little Neck, NY | 6.0 |
| JOHANNA PERRIN MIDDLE SCHOOL Fairport, NY | 6.0 |
| LAKELAND-COPPER BEECH MIDDLE SCHOOL Yorktown Heights, NY | 6.0 |
Frequently Asked Questions
Common questions about MS 51 William Alexander
What grades does MS 51 William Alexander serve?
MS 51 William Alexander serves students in grades 6th through 8th.
How many students attend MS 51 William Alexander?
MS 51 William Alexander has an enrollment of approximately 963 students.
What is the student-teacher ratio at MS 51 William Alexander?
The student-teacher ratio at MS 51 William Alexander is 14.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does MS 51 William Alexander rank in NY?
MS 51 William Alexander is ranked #2815 out of 4,739 schools in NY.
What is MS 51 William Alexander's MySchoolScout rating?
MS 51 William Alexander has a composite rating of 6.0 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at MS 51 William Alexander?
Based on the most recent state assessment data, MS 51 William Alexander has 70.8% math proficiency and 89.6% reading/ELA proficiency.
Is MS 51 William Alexander a charter school?
No, MS 51 William Alexander is not a charter school. It is a traditional public school operated by the local school district.
Is MS 51 William Alexander a Title I school?
No, MS 51 William Alexander is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for MS 51 William Alexander?
64.2% of students at MS 51 William Alexander qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- 6th – 8th
- Enrollment
- 963
- Student-Teacher Ratio
- 14.8:1
- Teachers (FTE)
- 65
- Free/Reduced Lunch
- 64.2%
- Type
- regular
- Setting
- Large City
- County
- Kings County
- Phone
- (718) 369-7603
- Data Year
- 2023–2024
Resources & Links
District
NEW YORK CITY GEOGRAPHIC DISTRICT #15- District Enrollment
- 26,808
- Schools in District
- 49
- District Rank
- #42 of 49
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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- Best States for Public Schools in 2026: A Complete Rankingdata insights
- Charter Schools vs Public Schools: What the Data Actually Shows (2026)school choice
- Student-Teacher Ratio by State: Complete 2026 Rankingsdata insights
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