A+ Top 6%

Winn Brook School

Grades K-03 BELMONT, MA

Improved 29 spots from last year

#50 State Rank
A+ District Grade
97 Waterhouse Road, BELMONT, MA 02478
Diverse
MCAS scores from 2025 Data updated December 2025
304 Students
95.3% Attendance Rate
62.3 Composite Score

MCAS Test Scores

Massachusetts Comprehensive Assessment System results

English Language Arts

76% Proficient or Above
16% Advanced

Mathematics

79% Proficient or Above
34% Advanced

Score Trends

Year Subject Grade Proficient+ Advanced
2025 English Language Arts 03 76% 16%
2025 Mathematics 03 79% 34%
2024 English Language Arts 03 75% 14%
2024 English Language Arts 04 70% 19%
2024 Mathematics 03 75% 36%
2024 Mathematics 04 79% 22%
2023 English Language Arts 03 83% 28%
2023 English Language Arts 04 81% 15%
2023 Mathematics 03 84% 33%
2023 Mathematics 04 86% 27%
2022 English Language Arts 03 85% 32%
2022 English Language Arts 04 72% 20%
2022 Mathematics 03 83% 41%
2022 Mathematics 04 76% 25%

MCAS is administered annually to students in grades 3-8 and 10. Scores reflect the percentage of students meeting or exceeding grade-level expectations.

Student Demographics

304 students enrolled

Race/Ethnicity

White 50.3%
Asian 30.9%
Multiracial 7.9%
Hispanic 5.6%
Black 5.3%

Gender

48.7% Male
51% Female

Student Programs

English Learners 23.4%
Special Education 8.9%
Free/Reduced Lunch 10.9%

School Performance

Key metrics and program information

Attendance

95.3% Attendance Rate
6.5% Chronic Absence

Staffing

Location

97 Waterhouse Road, BELMONT, MA

A+-Rated School

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Part of Belmont School District

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Frequently Asked Questions

What is Winn Brook School's grade rating?

Winn Brook School has earned a grade of A+, ranked #50 in Massachusetts, placing it in the top 6% of Massachusetts Elementary schools. This rating is based on 2025 MCAS test scores, attendance rates, and other performance metrics from the Massachusetts Department of Elementary and Secondary Education.

How many students attend Winn Brook School?

Approximately 304 students are enrolled at Winn Brook School.

How does Winn Brook School perform on MCAS tests?

Based on the most recent MCAS results, Winn Brook School's proficiency rates are: English Language Arts (76% proficient), Mathematics (79% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What is the attendance rate at Winn Brook School?

Winn Brook School has an attendance rate of 95.3%. Strong attendance is correlated with better academic outcomes.

What school district is Winn Brook School part of?

Winn Brook School is part of Belmont School District. For enrollment information, contact the district office or visit the school's website. Enrollment typically requires proof of residency within the district boundaries.

How are Massachusetts school ratings calculated?

School ratings are calculated using multiple data points from the Massachusetts Department of Elementary and Secondary Education (DESE), including MCAS test scores (proficiency and growth), attendance rates, graduation rates (for high schools), and student-teacher ratios. Schools are ranked by percentile against similar schools statewide.