Summary:
Northbridge has three public schools serving about 1,838 students: Northbridge Elementary School (PK–5, 973 students), Northbridge Middle (grades 6–7, 394 students), and Northbridge High (grades 8–12, 471 students). The Northbridge district summary is rated 1 star, ranked 255th of 351 districts (27th percentile), while each school's own recent rank history shows 2 stars and roughly 40th–45th percentile — so district and school ratings measure different things.
Comparing the three, Northbridge Elementary has the strongest overall proficiency, beating the district in ELA (36.62% vs 34.45%), Math (37.79% vs 34.29%), and Science (39.16% vs 31.78%), with science only 1.82 percentage points below the state. Its results are uneven by grade: 5th-grade ELA (44.76%) and 4th-grade Math (43.92%) top the state, but 4th-grade ELA (29.05%) and 5th-grade Math (29.37%) fall well below. Northbridge Middle is the steadiest performer, with rank percentile holding at 43rd–45th over three years, the lowest per-pupil spending ($14,657) and a student-teacher ratio of 11.8, though its scores remain below state averages. Northbridge High has the most resources — highest spending ($17,485), lowest student-teacher ratio (10.7), graduation 85.8% and dropout 11.3% — yet the weakest all-grade ELA (28.32%) and science (24.00%); 10th-grade Math (41.96%) is close to the state (43.73%).
Science is the clearest district-wide weakness: 31.78% versus 40.98% statewide, and it worsens after elementary school (10th-grade science 25.69%, Biology EOC 24.49%, 8th-grade civics 22.68% vs 39.77% state). One caution for parents: free/reduced-lunch percentages are blank for all three schools, so economic context is unavailable when weighing these results.
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