Summary
Mt Greylock Regional High is a public school in Williamstown, in the northern Berkshire area of Massachusetts, serving 539 students in grades 7–12 as part of the Mount Greylock district. In 2025–2026 it ranked 69th of 353 Massachusetts high schools — the 80th percentile — with a 4-star rating, making it the only 4-star school in its nearby comparison group. It has also improved markedly over the past decade, rising from 47th percentile and 2 stars in 2016–2017, and it has generally stayed in the top quartile since 2021–2022 after a brief dip to 74th percentile in 2024–2025.
Academically, all-grade proficiency in 2025–2026 was 57.35% in English Language Arts, 57.35% in math, and 59.22% in science, compared with state rates of 40.03%, 41.11%, and 40.98%. Tenth-grade results — the most comparable across nearby 9–12 schools — were 65.52% in ELA, 67.44% in math, and 50.62% in science. That is well ahead of Wahconah Regional High (44.12%, 39.22%, 38.71%), Pittsfield High (32.87%, 23.40%, 24.27%), and Taconic High (29.07%, 13.37%, 14.55%). Berkshire Arts and Technology Charter Public School posts a slightly higher 10th-grade ELA rate of 67.74%, but its math and science are far below Mt Greylock's.
The 2024–2025 graduation rate was 95.8%, with a 4.2% dropout rate — up from 1.0% the prior year, and higher than Wahconah's 3.3% and Charles McCann Vocational Technical's 1.5%, though far lower than Hoosac Valley High School, Drury High, and Pittsfield. Recent subgroup rankings are a strength: low-income students at the 79th percentile, special education students at the 73rd percentile, and male students at the 82nd percentile, all 4-star. Per-student spending was $20,369 in 2020–2021, and the student–teacher ratio was 11.4 in 2024–2025 — the highest among nearby non-Eagle schools, yet results remain strong. Note that free/reduced-lunch data were not provided, and spending figures are several years old.
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