Summary:
Three elementary schools serve Dartmouth, Massachusetts: James M. Quinn School (K–5, 703 students), George H Potter (PK–5, 407 students), and Joseph Demello (K–5, 392 students), together enrolling 1,502 students. Quinn is the largest, holding 46.8% of that enrollment, followed by Potter at 27.1% and Demello at 26.1%. All three sit within the Dartmouth district, which is ranked 153rd of 351 districts in Massachusetts, at the 56th percentile with 3 stars. Free/reduced-lunch percentages are blank for all three schools, so economic comparisons are not possible from this data.
Joseph Demello is the clear standout, with 4 stars in all three years of rank history and a statewide percentile that has stayed high at 70, 74, and 72. Its 2025–26 all-grade proficiency leads the group in ELA (50.53%), math (57.89%), and science (47.54%), beating the district and state in every reported subject and grade. James M. Quinn, the largest school, has the weakest current results and the steepest decline — its rank fell from the 65th percentile and 3 stars to the 45th percentile and 2 stars, and it trails the district in all three subjects, with 3rd-grade math at 20.8% a striking weakness. George H Potter sits in the middle: above the state in ELA and math but below the district in both, with science below both.
Scores fell broadly from 2024–25 to 2025–26, though unevenly: Quinn’s math dropped 12.35 points, Potter’s science 12.12 points, and Demello’s science 16.75 points, while the district also declined in every subject. Resource data show no simple pattern — Demello spends the most per student ($14,984) and has the highest student-teacher ratio (14.7) yet gets the best outcomes, while Quinn spends the least ($14,625) and has the lowest ratio (12.5) with the weakest results. For parents, Demello is the strongest choice by nearly every measure, Quinn currently lags the district, and Potter is a solid middle option with grade-specific strengths and weaknesses.
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