Best Public Schools in Sheffield, MA

Schools in Sheffield, Massachusetts include 3 public schools serving grades PK–12—two elementary schools, Undermountain (PK–5) and New Marlborough Central (PK–3), and one high school, Mt Everett Regional (6–12)—all in the Southern Berkshire district and sharing the same campus address at 491 Berkshire School Road. Total enrollment is 596 students. The district banner is 49th percentile, 2 stars, rank 179 of 351, yet school-level rank histories often look stronger, with 3-star results for each school in recent or older years.

New Marlborough Central has the strongest ELA: 56.25% proficient in 2024–2025, above district 36.4% and state 41.53%; its 3rd grade ELA is 56.25%. But it enrolls only 58 students, so small-cohort volatility is a major caveat. Undermountain’s standout is science: 48.89% science in 2025–2026, above district 46.05% and state 40.98%, and 5th grade science is 48.89% versus state 43.07%. Its 3rd grade ELA is 60%, and its rank rebounded from 38th percentile, 2 stars in 2024–2025 to 51st percentile, 3 stars in 2025–2026. Mt Everett Regional has graduation at 92.3% and Biology EOC at 56.25% versus state 37.68%, but 10th grade ELA is 30% and 10th grade math is 32.14%, both far below state. Its 2025–2026 all-grades ELA is 37.27%, below district 41.04% and state 40.03%; science is 40%, below district 46.05%.

At the district level, Southern Berkshire improved from 2024–2025 to 2025–2026: ELA rose from 36.4% to 41.04%, math from 39.55% to 41.6%, and science from 37.5% to 46.05%. Mt Everett’s ELA declined from 41.59% to 37.27%. Grade-level variation is large: Mt Everett’s 7th grade math is 50% while 10th grade math is 32.14%; Undermountain’s 3rd grade ELA is 60% while 4th grade ELA is 31.67%. Per-student spending for 2020–2021 is $27,481 at Mt Everett, $26,686 at Undermountain, and $22,675 at New Marlborough Central, with low student/teacher ratios of 7.8, 9.1, and 8.4. Free/reduced lunch data are blank for all three, so socioeconomic context cannot be compared. Sheffield’s schools show elementary science and ELA strengths, strong graduation/biology at Mt Everett, and 3-star school-level histories despite a 2-star district, but small enrollment and older spending data warrant caution.