A- Top 28%

Millbury Street Elementary School

Grades 02-06 GRAFTON, MA

Dropped 7 spots from last year

#232 State Rank
B+ District Grade
105 Millbury Street, GRAFTON, MA 01519
MCAS scores from 2025 Data updated December 2025
585 Students
93.8% Attendance Rate
53.4 Composite Score

MCAS Test Scores

Massachusetts Comprehensive Assessment System results

English Language Arts

52.3% Proficient or Above
4.5% Advanced

Mathematics

59% Proficient or Above
13.8% Advanced

Science

77% Proficient or Above
15% Advanced

Score Trends

Year Subject Grade Proficient+ Advanced
2025 English Language Arts 03 48% 7%
2025 English Language Arts 04 60% 5%
2025 English Language Arts 05 59% 4%
2025 English Language Arts 06 42% 2%
2025 Mathematics 03 56% 14%
2025 Mathematics 04 61% 10%
2025 Mathematics 05 63% 14%
2025 Mathematics 06 56% 17%
2025 Science 05 77% 15%
2024 English Language Arts 03 57% 2%
2024 English Language Arts 04 54% 10%
2024 English Language Arts 05 40% 4%
2024 English Language Arts 06 44% 10%
2024 Mathematics 03 59% 15%
2024 Mathematics 04 76% 13%

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

585 students enrolled

Race/Ethnicity

White 67.9%
Asian 16.8%
Hispanic 9.2%
Black 3.2%
Multiracial 2.1%

Gender

54% Male
46% Female

Student Programs

English Learners 2.7%
Special Education 21.2%
Free/Reduced Lunch 13.3%

School Performance

Key metrics and program information

Attendance

93.8% Attendance Rate
16.6% Chronic Absence

Staffing

Location

105 Millbury Street, GRAFTON, MA

A--Rated School

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Part of Grafton School District

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Frequently Asked Questions

What is Millbury Street Elementary School's grade rating?

Millbury Street Elementary School has earned a grade of A-, ranked #232 in Massachusetts, placing it in the top 28% of Massachusetts Combined 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 Millbury Street Elementary School?

Approximately 585 students are enrolled at Millbury Street Elementary School.

How does Millbury Street Elementary School perform on MCAS tests?

Based on the most recent MCAS results, Millbury Street Elementary School's proficiency rates are: English Language Arts (52% proficient), Mathematics (59% proficient), Science (77% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What is the attendance rate at Millbury Street Elementary School?

Millbury Street Elementary School has an attendance rate of 93.8%. Strong attendance is correlated with better academic outcomes.

What school district is Millbury Street Elementary School part of?

Millbury Street Elementary School is part of Grafton 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.