A+ Top 9%

Cohasset High School

Grades 09-12 COHASSET, MA

Moved down 14 places from 2024 to 2025

#32 State Rank
A District Grade
143 Pond Street, COHASSET, MA 02025
High Grad Rate 100% Active Athletics 28 sports
Rating sources & methodology MCAS scores from 2025 Data updated September 2026
372 Students
95.1% Attendance Rate
70.4 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

86% Meeting or exceeding expectations

27% exceeding expectations

2023 90% 90%
2024 93% 93%
2025 86% 86%

Mathematics

77% Meeting or exceeding expectations

22% exceeding expectations

2023 86% 86%
2024 72% 72%
2025 77% 77%

Science

78% Meeting or exceeding expectations

16% exceeding expectations

2023 76% 76%
2024 79% 79%
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 Arts10 86%27%
2025Mathematics10 77%22%
2025Science10 78%16%
2024English Language Arts10 93%32%
2024Mathematics10 72%9%
2024Science10 79%18%
2023English Language Arts10 90%34%
2023Mathematics10 86%14%
2023Science10 76%21%

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

372 students enrolled

Race/Ethnicity

White 90.6%
Black 3%
Multiracial 2.4%
Hispanic 2.2%
Asian 1.9%

Gender

51.3% Male
48.7% Female

Student Programs

English Learners 1.1%
Special Education 17.2%
Free/Reduced Lunch 7.5%

Athletics Programs

28 sports programs with 1,256 student athletes

Boys Sports

  • Football 56 athletes
  • Softball 42 athletes
  • Lacrosse 38 athletes
  • Volleyball 30 athletes
  • Wrestling 27 athletes
  • Track-Indoor 25 athletes
  • Baseball 25 athletes
  • Basketball 24 athletes
  • Ice Hockey 20 athletes
  • Golf 20 athletes
  • Cross Country 9 athletes
  • Ski-Nordic 9 athletes
  • Tennis 6 athletes

Girls Sports

  • Wrestling 331 athletes
  • Unified Basketball 297 athletes
  • Tennis 46 athletes
  • Cross Country 41 athletes
  • Volleyball 35 athletes
  • Soccer 35 athletes
  • Ice Hockey 33 athletes
  • Baseball 25 athletes
  • Track-Outdoor 21 athletes
  • Softball 14 athletes
  • Winter Swim/Dive 13 athletes
  • Basketball 11 athletes
  • Football 9 athletes
  • Golf 8 athletes
  • Ski-Alpine 6 athletes

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

School Performance

Key metrics and program information

Graduation

Attendance

95.1% Attendance Rate
8.6% Chronic Absence

Advanced Placement

College Readiness

MassCore is Massachusetts' recommended college-ready curriculum.

Staffing

Location

143 Pond Street, COHASSET, MA

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A+-Rated School

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Other Schools in Cohasset School District

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A+

Deer Hill School

Elementary • #72 State
→ A+

Cohasset Middle School

Middle • #31 State
→ N/A

Joseph Osgood School

Elementary
→
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Frequently Asked Questions

What is Cohasset High School's grade rating?

Cohasset High School has earned a grade of A+, ranked #32 in Massachusetts, placing it in the top 9% 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 Cohasset High School?

Approximately 372 students are enrolled at Cohasset High School.

How does Cohasset High School perform on MCAS tests?

Based on the most recent MCAS results, Cohasset High School's proficiency rates are: English Language Arts (86% proficient), Mathematics (77% proficient), Science (78% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What sports does Cohasset High School offer?

Cohasset High School offers 28 athletic programs (13 boys' sports, 15 girls' sports) with approximately 1,256 student athletes participating. Sports programs are sanctioned by the MIAA (Massachusetts Interscholastic Athletic Association).

What is the graduation rate at Cohasset High School?

Cohasset High School has a excellent 100% graduation rate. The state average graduation rate in Massachusetts is approximately 89%.

What is the attendance rate at Cohasset High School?

Cohasset High School has an attendance rate of 95.1%. Strong attendance is correlated with better academic outcomes.

What school district is Cohasset High School part of?

Cohasset High School is part of Cohasset 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.