B Top 42%

Mount Greylock Regional High School

Grades 07-12 WILLIAMSTOWN, MA

Moved up 57 places from 2024 to 2025

#148 State Rank
B District Grade
1781 Cold Spring Road, WILLIAMSTOWN, MA 01267
High Grad Rate 96.9%
Rating sources & methodology MCAS scores from 2025 Data updated September 2026
543 Students
94.5% Attendance Rate
56.4 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.

CIV

49% Meeting or exceeding expectations

9% exceeding expectations

English Language Arts

60.3% Meeting or exceeding expectations

14.7% exceeding expectations

2023 68% 68%
2024 64% 64%
2025 60.3% 60.3%

Mathematics

49% Meeting or exceeding expectations

10.7% exceeding expectations

2023 58% 58%
2024 52.7% 52.7%
2025 49% 49%

Science

50% Meeting or exceeding expectations

12% exceeding expectations

2023 53% 53%
2024 61% 61%
2025 50% 50%
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
2025CIV08 49%9%
2025English Language Arts07 63%16%
2025English Language Arts08 54%17%
2025English Language Arts10 64%11%
2025Mathematics07 59%11%
2025Mathematics08 28%3%
2025Mathematics10 60%18%
2025Science08 46%8%
2025Science10 54%16%
2024English Language Arts07 53%11%
2024English Language Arts08 60%20%
2024English Language Arts10 79%40%
2024Mathematics07 52%14%
2024Mathematics08 41%5%
2024Mathematics10 65%34%
2024Science08 56%6%
2024Science10 66%29%
2023English Language Arts07 62%18%
2023English Language Arts08 60%22%
2023English Language Arts10 82%27%
2023Mathematics07 63%11%
2023Mathematics08 40%7%
2023Mathematics10 71%21%
2023Science08 50%5%
2023Science10 56%16%

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

543 students enrolled

Race/Ethnicity

White 83.6%
Hispanic 7.9%
Multiracial 4.8%
Black 1.8%
Asian 1.8%

Gender

49.4% Male
49.7% Female

Student Programs

English Learners 0.9%
Special Education 16.6%
Free/Reduced Lunch 20.1%

School Performance

Key metrics and program information

Attendance

94.5% Attendance Rate
13.4% Chronic Absence

Staffing

Location

1781 Cold Spring Road, WILLIAMSTOWN, MA

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B-Rated School

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Frequently Asked Questions

What is Mount Greylock Regional High School's grade rating?

Mount Greylock Regional High School has earned a grade of B, ranked #148 in Massachusetts, placing it in the top 42% 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 Mount Greylock Regional High School?

Approximately 543 students are enrolled at Mount Greylock Regional High School.

How does Mount Greylock Regional High School perform on MCAS tests?

Based on the most recent MCAS results, Mount Greylock Regional High School's proficiency rates are: CIV (49% proficient), English Language Arts (60% proficient), Mathematics (49% proficient). MCAS (Massachusetts Comprehensive Assessment System) tests measure student achievement in English Language Arts, Mathematics, and Science.

What is the graduation rate at Mount Greylock Regional High School?

Mount Greylock Regional High School has a excellent 96.9% graduation rate. The state average graduation rate in Massachusetts is approximately 89%.

What is the attendance rate at Mount Greylock Regional High School?

Mount Greylock Regional High School has an attendance rate of 94.5%. Strong attendance is correlated with better academic outcomes.

What school district is Mount Greylock Regional High School part of?

Mount Greylock Regional High School is part of Mount Greylock 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.