Summary:
Holliston, MA is served by four schools — two elementary, one middle, and one high school, with no alternative school — enrolling 2,689 students in total, and the Holliston district ranks 50th of 351 Massachusetts districts, in the 86th percentile with 4 stars.
The strongest results are in the upper grades. Holliston High ranked 30 of 353 for 2025–2026 (92nd percentile, 5 stars), up from 60th in 2023–2024, and its 2024–2025 graduation rate was 96.1% versus 95.1% district-wide, with a 1.0% dropout rate. In 2025–2026, 10th-grade proficiency was 73.44% in ELA, 81.68% in Mathematics, and 72.97% in Science, all well above state averages. Robert H. Adams Middle School also earned 5 stars, ranking 45 of 478 (91st percentile), with all-grade proficiency of 65.11% in ELA, 69.45% in Mathematics, 68.2% in Science, and 70.09% in 8th-grade Civics — all above state. One anomaly: the high school's Physics proficiency for 2024–2025 is reported as 0%, against a state average of 44.25%, a sharp outlier that may warrant verification.
Miller School ranked 288 of 899 (68th percentile, 3 stars), with all-grade scores above state in ELA, Mathematics, and Science, though its rank has stayed stable rather than rising. Its brightest spot is 5th-grade Math at 66.34%, while 4th-grade Math is slightly below the state average. Placentino Elementary serves PK–2, so it has no MCAS results and cannot be compared academically; it has the highest student-teacher ratio (14.3) and highest per-student spending ($15,009 in 2020–2021). Free/reduced-lunch data is blank for all four schools, so socioeconomic context is unknown.
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