Summary:
ZIP code 01588 has one middle school, Northbridge Middle, serving grades 6–7 with 394 students in Whitinsville, part of the Northbridge district. Because it is the only middle school in the ZIP, there are no local middle-school peers; the useful comparisons are to the district and Massachusetts state averages.
The school performs below the state average in every reported MCAS Next Generation area. In 2025–2026, All Grades ELA was 33.47% proficient versus 34.45% for the district and 40.03% for the state, while All Grades Mathematics was 31.38% versus 34.29% district and 41.11% state. The largest state gaps were Science (30.53% in 2024–2025 vs 41.51% state), Mathematics All Grades (−9.73 points), and 6th grade Mathematics (−10.56 points). The smallest gaps were Civics 8th grade (34.78% vs 39.16% state), 6th grade ELA (34.13% vs 40.26% state), and 7th grade Mathematics (30.63% vs 37.48% state). 6th grade Mathematics was the only 2025–2026 measure where the school exceeded its district (32.03% vs 31.82%), though it remained well below state.
From 2024–2025 to 2025–2026, All Grades ELA improved by 1.85 points, while All Grades Mathematics declined by 2.59 points. In 2025–2026, 6th grade outperformed 7th grade by 1.40 points in both ELA and Mathematics. The school’s rank history is 2 stars and 45th percentile, up from 43rd percentile; the district is ranked 255 of 351, 27th percentile, 1 star. Spending was $14,657 per student (2020–2021), the student-teacher ratio was 11.8 (2024–2025), and the free/reduced-lunch field is blank, so socioeconomic context cannot be evaluated here. A Civics 8th grade result is reported even though the school profile lists grades 6–7, so that data point should be interpreted with caution.
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