Summary:
Holliston, Massachusetts is a suburban town west of Boston whose public schools serve about 2,689 students across four schools — two elementary schools (Placentino Elementary, PK–2, and Miller School, grades 3–5), one middle school (Robert H. Adams Middle School, grades 6–8), and one high school (Holliston High, grades 9–12) — with no alternative schools. The Holliston district ranks 50th of 351 Massachusetts districts, in the 86th percentile with 4 stars.
Two schools stand out. Holliston High ranked 30th of 353 high schools in 2025–2026 (92nd percentile, 5 stars), up from 60th two years earlier; its 10th-grade scores far exceed the state — ELA 73.44% vs. 45.48%, math 81.68% vs. 43.73%, science 72.97% vs. 40.5%, biology 63.11% vs. 37.68%. Robert H. Adams Middle ranked 45th of 478 middle schools (91st percentile, 5 stars), with all-grade ELA 65.11% vs. 40.03%, math 69.45% vs. 41.11%, science 68.2% vs. 40.98%, and civics 70.09% vs. 39.77%. Miller is solid but more average: 288th of 899 elementary schools (68th percentile, 3 stars), above state in most measures, though its 4th-grade math result of 39.83% vs. 43.2% is below state. Placentino, serving PK–2, has no MCAS or ranking data.
On staffing, the strongest schools have the lowest student-teacher ratios — Holliston High 12.4 and Adams 12.5, versus Miller 13.1 and Placentino 14.3. Adams spends the least per student ($14,279, 2020–2021) yet ranks highest among the middle schools, while Placentino spends the most ($15,009) but cannot be evaluated academically. Holliston High's graduation rate is 96.1% and dropout rate 1.0%, close to the district's 95.1% and 1.0%. Free/reduced-lunch data is not reported, so socioeconomic context is unavailable, and the Physics result of 0% proficient in 2024–2025 — versus 44.25% statewide — is an anomaly that likely reflects a small tested cohort or a reporting issue rather than a normal academic weakness.
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