A+ Top 9%

Winthrop School

Grades PK-05 HAMILTON, MA

Moved up 287 places from 2024 to 2025

#76 State Rank
A District Grade
325 Bay Road, HAMILTON, MA 01982
Rating sources & methodology MCAS scores from 2025 Data updated September 2026
318 Students
95.9% Attendance Rate
60.5 Composite Score
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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.

English Language Arts

54.3% Meeting or exceeding expectations

12.3% exceeding expectations

2023 68.3% 68.3%
2024 57.3% 57.3%
2025 54.3% 54.3%

Mathematics

66% Meeting or exceeding expectations

16% exceeding expectations

2023 61% 61%
2024 48.3% 48.3%
2025 66% 66%

Science

71% Meeting or exceeding expectations

13% exceeding expectations

2023 66% 66%
2024 65% 65%
2025 71% 71%
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
2025English Language Arts03 56%18%
2025English Language Arts04 40%2%
2025English Language Arts05 67%17%
2025Mathematics03 69%20%
2025Mathematics04 58%5%
2025Mathematics05 71%23%
2025Science05 71%13%
2024English Language Arts03 51%4%
2024English Language Arts04 63%4%
2024English Language Arts05 58%12%
2024Mathematics03 39%7%
2024Mathematics04 46%—
2024Mathematics05 60%12%
2024Science05 65%12%
2023English Language Arts03 68%14%
2023English Language Arts04 63%17%
2023English Language Arts05 74%5%
2023Mathematics03 54%8%
2023Mathematics04 63%15%
2023Mathematics05 66%—
2023Science05 66%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

318 students enrolled

Race/Ethnicity

White 86.8%
Hispanic 6.3%
Asian 3.5%
Multiracial 2.8%
Black 0.6%

Gender

52.2% Male
47.8% Female

Student Programs

English Learners 0%
Special Education 20.8%
Free/Reduced Lunch 4.4%

School Performance

Key metrics and program information

Attendance

95.9% Attendance Rate
4.9% Chronic Absence

Staffing

Location

325 Bay Road, HAMILTON, MA

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A+-Rated School

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Part of Hamilton-Wenham School District

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Frequently Asked Questions

What is Winthrop School's grade rating?

Winthrop School has earned a grade of A+, ranked #76 in Massachusetts, placing it in the top 9% 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 Winthrop School?

Approximately 318 students are enrolled at Winthrop School.

How does Winthrop School perform on MCAS tests?

Based on the most recent MCAS results, Winthrop School's proficiency rates are: English Language Arts (54% proficient), Mathematics (66% proficient), Science (71% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What is the attendance rate at Winthrop School?

Winthrop School has an attendance rate of 95.9%. Strong attendance is correlated with better academic outcomes.

What school district is Winthrop School part of?

Winthrop School is part of Hamilton-Wenham 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.