High Schools in Millbury

The Millbury area has one public high school, Millbury Junior/Senior High, serving grades 7–12 with 722 students at 12 Martin Street. It is part of the same district, which ranks 254 of 351 in Massachusetts (28th percentile, 1 star); the school has held 2 stars and ranked between the 34th and 38th percentile over the last three listed years. The record includes 2025–2026 and 2024–2025 MCAS results, 2024–2025 graduation and dropout data, a 2024–2025 student/teacher ratio, and 2020–2021 per-student spending. Free/reduced lunch is unavailable, not 0%.

Academically, the school generally trails the state on MCAS but often edges out its own district at the grade level. Its clearest strength is 7th grade Mathematics: 41% proficient, above the district (39.42%) and the state (37.48%). It also matches or slightly exceeds the district in 10th grade ELA (35.24% vs. 34.91%), 10th grade Mathematics (34.62% vs. 34.29%), 8th grade ELA (31.34% vs. 30.71%), 8th grade Science (30.83% vs. 30.22%), 8th grade Civics (27.61% vs. 26.43%), and Biology End of Course (18.28% vs. 18.09%), though all remain below state averages except 7th grade Math. Notable gaps include All Grades ELA (27.35% vs. 40.03% state), 7th grade ELA (22.00% vs. 39.91%), 8th grade Mathematics (26.15% vs. 41.67%), and Biology End of Course (18.28% vs. 37.68%). All Grades ELA fell from 39.66% in 2024–2025 to 27.35% in 2025–2026; Mathematics was nearly flat, Science improved slightly, and 8th grade Civics was stable.

Completion metrics are stronger than test scores: the 2024–2025 graduation rate is 94.4% vs. 93.8% for the district, and the dropout rate is 3.2% vs. 3.1%. The student/teacher ratio is 11.3, and per-student spending was $17,979 in 2020–2021. For parents, the key takeaway is that Millbury Junior/Senior High is the only public high-school option here, with stable but modest rankings, local grade-level strengths, and clear room to improve against state proficiency levels, especially in Biology and 7th grade ELA. The blank free/reduced lunch figure should be treated as missing, and the older spending year and different Biology reporting categories limit direct comparisons.