B Top 50%

William F. Stanley Elementary School

Grades PK-05 WALTHAM, MA

Moved up 57 places from 2024 to 2025

#412 State Rank
B+ District Grade
250 South Street, WALTHAM, MA 02453
Diverse
Rating sources & methodology MCAS scores from 2025 Data updated September 2026
396 Students
94.5% Attendance Rate
47.4 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

30.3% Meeting or exceeding expectations

9% exceeding expectations

2023 38.7% 38.7%
2024 33.3% 33.3%
2025 30.3% 30.3%

Mathematics

32% Meeting or exceeding expectations

6% exceeding expectations

2023 38.7% 38.7%
2024 36.3% 36.3%
2025 32% 32%

Science

47% Meeting or exceeding expectations

16% exceeding expectations

2023 40% 40%
2024 49% 49%
2025 47% 47%
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 26%5%
2025English Language Arts04 25%6%
2025English Language Arts05 40%16%
2025Mathematics03 29%10%
2025Mathematics04 34%6%
2025Mathematics05 33%2%
2025Science05 47%16%
2024English Language Arts03 27%6%
2024English Language Arts04 33%2%
2024English Language Arts05 40%9%
2024Mathematics03 28%4%
2024Mathematics04 43%8%
2024Mathematics05 38%4%
2024Science05 49%6%
2023English Language Arts03 45%9%
2023English Language Arts04 23%—
2023English Language Arts05 48%12%
2023Mathematics03 34%4%
2023Mathematics04 42%13%
2023Mathematics05 40%7%
2023Science05 40%7%

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

396 students enrolled

Race/Ethnicity

Hispanic 46.5%
White 27.3%
Black 12.9%
Asian 8.8%
Multiracial 4.5%

Gender

58.3% Male
41.7% Female

Student Programs

English Learners 36.6%
Special Education 31.6%
Free/Reduced Lunch 52%

School Performance

Key metrics and program information

Attendance

94.5% Attendance Rate
12.7% Chronic Absence

Staffing

Location

250 South Street, WALTHAM, MA

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B-Rated School

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Frequently Asked Questions

What is William F. Stanley Elementary School's grade rating?

William F. Stanley Elementary School has earned a grade of B, ranked #412 in Massachusetts, placing it in the top 50% 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 F. Stanley Elementary School?

Approximately 396 students are enrolled at William F. Stanley Elementary School.

How does William F. Stanley Elementary School perform on MCAS tests?

Based on the most recent MCAS results, William F. Stanley Elementary School's proficiency rates are: English Language Arts (30% proficient), Mathematics (32% proficient), Science (47% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What is the attendance rate at William F. Stanley Elementary School?

William F. Stanley Elementary School has an attendance rate of 94.5%. Strong attendance is correlated with better academic outcomes.

What school district is William F. Stanley Elementary School part of?

William F. Stanley Elementary School is part of Waltham 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.