A Top 11%

Stony Brook School

Grades 06-08 WESTFORD, MA

Moved down 18 places from 2024 to 2025

#41 State Rank
A District Grade
9 Farmer Way, WESTFORD, MA 01886
Rating sources & methodology MCAS scores from 2025 Data updated September 2026
547 Students
95.2% Attendance Rate
58.4 Composite Score

MCAS score comparisons

Students meeting or exceeding expectations · 2025 results

Each subject shows the average of published grade percentages, without weighting by enrollment. The bars compare available years on a 0–100% scale. Grade coverage and student groups can change between years.

CIV

61% Meeting or exceeding expectations

16% exceeding expectations

English Language Arts

66.7% Meeting or exceeding expectations

17.3% exceeding expectations

2023 65% 65%
2024 66% 66%
2025 66.7% 66.7%

Mathematics

76.7% Meeting or exceeding expectations

20.3% exceeding expectations

2023 73.7% 73.7%
2024 74% 74%
2025 76.7% 76.7%

Science

65% Meeting or exceeding expectations

14% exceeding expectations

2023 57% 57%
2024 64% 64%
2025 65% 65%
View published results by year and grade
Available grade results for the latest 3 published years. An em dash means the value was not published.
YearSubjectGradeMeeting+Exceeding
2025CIV08 61%16%
2025English Language Arts06 63%15%
2025English Language Arts07 67%16%
2025English Language Arts08 70%21%
2025Mathematics06 71%11%
2025Mathematics07 78%27%
2025Mathematics08 81%23%
2025Science08 65%14%
2024English Language Arts06 63%15%
2024English Language Arts07 65%25%
2024English Language Arts08 70%23%
2024Mathematics06 72%19%
2024Mathematics07 75%26%
2024Mathematics08 75%19%
2024Science08 64%8%
2023English Language Arts06 57%11%
2023English Language Arts07 65%11%
2023English Language Arts08 73%24%
2023Mathematics06 72%20%
2023Mathematics07 73%24%
2023Mathematics08 76%17%
2023Science08 57%8%

MCAS subject percentages differ from the composite school rating, which combines available academic and school indicators. Letter grades and state ranks compare schools at the same level. A rank change describes relative position, not a percentage-point change in test scores. Read the rating methodology.

Student Demographics

547 students enrolled

Race/Ethnicity

White 62.9%
Asian 28.9%
Hispanic 3.8%
Black 2.6%
Multiracial 1.6%

Gender

51% Male
49% Female

Student Programs

English Learners 1.1%
Special Education 16.3%
Free/Reduced Lunch 8.6%

School Performance

Key metrics and program information

Attendance

95.2% Attendance Rate
8.9% Chronic Absence

Staffing

Location

9 Farmer Way, WESTFORD, MA

A-Rated School

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Part of Westford School District

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Frequently Asked Questions

What is Stony Brook School's grade rating?

Stony Brook School has earned a grade of A, ranked #41 in Massachusetts, placing it in the top 11% of Massachusetts Middle 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 Stony Brook School?

Approximately 547 students are enrolled at Stony Brook School.

How does Stony Brook School perform on MCAS tests?

Based on the most recent MCAS results, Stony Brook School's proficiency rates are: CIV (61% proficient), English Language Arts (67% proficient), Mathematics (77% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What is the attendance rate at Stony Brook School?

Stony Brook School has an attendance rate of 95.2%. Strong attendance is correlated with better academic outcomes.

What school district is Stony Brook School part of?

Stony Brook School is part of Westford 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.