A+ Top 3%

William Mitchell School

Grades K-05 NEEDHAM, MA

Moved up 19 places from 2024 to 2025

#27 State Rank
A+ District Grade
187 Brookline Street, NEEDHAM, MA 02492
High Attendance 96.8%
Rating sources & methodology MCAS scores from 2025 Data updated September 2026
414 Students
96.8% Attendance Rate
64.2 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

69.7% Meeting or exceeding expectations

12% exceeding expectations

2023 68% 68%
2024 65.7% 65.7%
2025 69.7% 69.7%

Mathematics

72.3% Meeting or exceeding expectations

16.3% exceeding expectations

2023 69% 69%
2024 72.7% 72.7%
2025 72.3% 72.3%

Science

78% Meeting or exceeding expectations

16% exceeding expectations

2023 59% 59%
2024 74% 74%
2025 78% 78%
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 68%10%
2025English Language Arts04 74%11%
2025English Language Arts05 67%15%
2025Mathematics03 62%21%
2025Mathematics04 80%12%
2025Mathematics05 75%16%
2025Science05 78%16%
2024English Language Arts03 57%7%
2024English Language Arts04 61%13%
2024English Language Arts05 79%22%
2024Mathematics03 67%24%
2024Mathematics04 73%18%
2024Mathematics05 78%12%
2024Science05 74%13%
2023English Language Arts03 68%14%
2023English Language Arts04 74%13%
2023English Language Arts05 62%8%
2023Mathematics03 67%19%
2023Mathematics04 74%16%
2023Mathematics05 66%13%
2023Science05 59%14%

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

414 students enrolled

Race/Ethnicity

White 78.3%
Asian 9.9%
Multiracial 5.1%
Hispanic 4.3%
Black 2.4%

Gender

53.1% Male
46.9% Female

Student Programs

English Learners 2.4%
Special Education 15.5%
Free/Reduced Lunch 3.6%

School Performance

Key metrics and program information

Attendance

96.8% Attendance Rate
2.2% Chronic Absence

Staffing

Location

187 Brookline Street, NEEDHAM, MA

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A+-Rated School

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Frequently Asked Questions

What is William Mitchell School's grade rating?

William Mitchell School has earned a grade of A+, ranked #27 in Massachusetts, placing it in the top 3% 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 William Mitchell School?

Approximately 414 students are enrolled at William Mitchell School.

How does William Mitchell School perform on MCAS tests?

Based on the most recent MCAS results, William Mitchell School's proficiency rates are: English Language Arts (70% proficient), Mathematics (72% proficient), Science (78% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What is the attendance rate at William Mitchell School?

William Mitchell School has an attendance rate of 96.8%. Strong attendance is correlated with better academic outcomes.

What school district is William Mitchell School part of?

William Mitchell School is part of Needham 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.