Summary:
Blackstone-Millville is a three-school Massachusetts district serving 1,480 students across one elementary school (grades K–3), one middle school (grades 4–7), and one high school (grades 8–12), with no alternative schools in this list; the district is ranked 242 of 351 statewide, at the 31st percentile with 2 stars.
Millville Elementary is the clearest academic standout. Its 2025–2026 all-grade results were 43.56% proficient in ELA and 49.00% in math — the only school here above the state in both subjects, and 7.89 points above the state in math. Its math also beat the district's 34.74% by 14.26 points. Keep in mind that only grade 3 is tested there, so its scores reflect a single grade. Frederick W. Hartnett Middle School is the science standout: 45.45% proficient in 2025–2026 science, above the district's 36.80% and the state's 40.98%, down from 58.33% a year earlier but still a relative strength. Hartnett also holds the best recent school rank in the list, 221 of 478 (54th percentile, 3 stars), up from 250 of 484 and 272 of 493 in the prior two years.
Blackstone Millville Regional High School is the main challenge. Its 2025–2026 all-grade ELA proficiency was 21.26% and math 16.13%, both far below district and state, with ELA falling from 37.62% and math from 26.47% the year before. Positives remain: a 91.9% graduation rate and Biology End-of-Course proficiency of 38.60%, above the state's 37.68%. Overall, strengths are concentrated in the early grades and middle school science, while the high school's core ELA and math results are the urgent concern. Free/reduced lunch data is unavailable for all three schools, so economic comparisons cannot be made, and "all grades" covers different grade bands at each school.
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