A- Top 23%

Millis High School

Grades 09-12 MILLIS, MA

Moved down 55 places from 2024 to 2025

#79 State Rank
C+ District Grade
245 Plain Street, MILLIS, MA 02054
High Grad Rate 98.6% Active Athletics 27 sports
Rating sources & methodology MCAS scores from 2025 Data updated September 2026
284 Students
94.3% Attendance Rate
63.2 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

78% Meeting or exceeding expectations

20% exceeding expectations

2023 85% 85%
2024 79% 79%
2025 78% 78%

Mathematics

64% Meeting or exceeding expectations

12% exceeding expectations

2023 69% 69%
2024 72% 72%
2025 64% 64%

Science

68% Meeting or exceeding expectations

12% exceeding expectations

2023 55% 55%
2024 71% 71%
2025 68% 68%
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 Arts10 78%20%
2025Mathematics10 64%12%
2025Science10 68%12%
2024English Language Arts10 79%18%
2024Mathematics10 72%20%
2024Science10 71%12%
2023English Language Arts10 85%18%
2023Mathematics10 69%15%
2023Science10 55%13%

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

284 students enrolled

Race/Ethnicity

White 82.4%
Hispanic 9.5%
Multiracial 4.2%
Asian 2.1%
Black 1.4%

Gender

45.4% Male
54.2% Female

Student Programs

English Learners 2.5%
Special Education 19%
Free/Reduced Lunch 18.7%

Athletics Programs

27 sports programs with 844 student athletes

Boys Sports

  • Volleyball 36 athletes
  • Football 36 athletes
  • Track-Outdoor 23 athletes
  • Softball 20 athletes
  • Basketball 19 athletes
  • Golf 17 athletes
  • Rugby 14 athletes
  • Track-Indoor 14 athletes
  • Baseball 12 athletes
  • Ice Hockey 7 athletes
  • Cross Country 3 athletes
  • Lacrosse 2 athletes
  • Ski-Nordic 1 athletes

Girls Sports

  • Unified Basketball 218 athletes
  • Wrestling 204 athletes
  • Soccer 36 athletes
  • Track-Outdoor 34 athletes
  • Volleyball 33 athletes
  • Track-Indoor 32 athletes
  • Tennis 28 athletes
  • Baseball 27 athletes
  • Softball 12 athletes
  • Basketball 8 athletes
  • Ice Hockey 4 athletes
  • Golf 2 athletes
  • Football 1 athletes
  • Ski-Alpine 1 athletes

Sports data from the Massachusetts Interscholastic Athletic Association (MIAA).

School Performance

Key metrics and program information

Graduation

1.4% Dropout Rate

Attendance

94.3% Attendance Rate
11.1% Chronic Absence

Advanced Placement

College Readiness

MassCore is Massachusetts' recommended college-ready curriculum.

Staffing

Location

245 Plain Street, MILLIS, MA

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A--Rated School

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Other Schools in Millis School District

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A-

Millis Middle School

Middle • #100 State
→ B-

Clyde F Brown School

Elementary • #457 State
→ N/A

TIES

School
→ N/A

Woodside Montessori Academy

Combined
→
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Frequently Asked Questions

What is Millis High School's grade rating?

Millis High School has earned a grade of A-, ranked #79 in Massachusetts, placing it in the top 23% of Massachusetts High 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 Millis High School?

Approximately 284 students are enrolled at Millis High School.

How does Millis High School perform on MCAS tests?

Based on the most recent MCAS results, Millis High School's proficiency rates are: English Language Arts (78% proficient), Mathematics (64% proficient), Science (68% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What sports does Millis High School offer?

Millis High School offers 27 athletic programs (13 boys' sports, 14 girls' sports) with approximately 844 student athletes participating. Sports programs are sanctioned by the MIAA (Massachusetts Interscholastic Athletic Association).

What is the graduation rate at Millis High School?

Millis High School has a excellent 98.6% graduation rate. The state average graduation rate in Massachusetts is approximately 89%.

What is the attendance rate at Millis High School?

Millis High School has an attendance rate of 94.3%. Strong attendance is correlated with better academic outcomes.

What school district is Millis High School part of?

Millis High School is part of Millis 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.