Summary:
ZIP code 01519 covers four public schools in Grafton, Massachusetts — two elementary schools serving grades 2–6, one middle school for grades 7–8, and one high school for grades 9–12 — with 2,552 students enrolled across the Grafton district, which ranks 77th of 351 Massachusetts districts, in the 78th percentile with 4 stars.
The upper grades are the strongest performers. Grafton Middle has held 4 stars and stayed at or above the 83rd percentile across all three reported years, scoring above district and state in ELA, math, science, and civics; its science proficiency is 61.00% against 40.98% statewide, and civics rose from 48.92% to 55.37%. Grafton High School shows the fastest improvement, climbing from 131st of 348 (62nd percentile, 3 stars) in 2023–2024 to 66th of 353 (81st percentile, 4 stars) in 2025–2026, with math proficiency up 10.53 points to 62.12%. It also reports a 94.5% graduation rate and a 2.3% dropout rate, both better than the district.
Among the elementary schools, Millbury Street Elementary School leads in math (56.85%) and posted an exceptional 2024–2025 science result of 77.34%, though that fell to 56.86% the next year — a drop of about 20.5 points. It also has the lowest student-teacher ratio (12.0) and the highest per-student spending ($15,352). North Street Elementary School has the highest ratio (14.2) and slightly lower overall results, but notable grade-level strengths: 3rd grade ELA at 62.50% and 6th grade math at 64.29%. All four schools exceed state averages in every reported 2025–2026 test area, though both elementary schools trail the district in ELA. Free/reduced-lunch data are blank for all four schools — unknown, not zero — and spending figures are from 2020–2021.
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