Summary
Dartmouth High is a comprehensive high school serving grades 9–12 in Dartmouth, Massachusetts, a South Coast town near New Bedford and Fall River, with 902 students. In 2025–26 it ranked 147th of 353 Massachusetts high schools (58th percentile, 3 stars), while its district, Dartmouth, ranked 153rd of 351 districts (56th percentile, 3 stars) — so the school performs slightly above its own district average. Dartmouth High has held a steady 3-star rating for about a decade, ranging from the high 50s to the mid 60s in statewide percentile: it peaked at 67th percentile in 2021–22, was 65th in 2024–25, and sits at 58th in 2025–26. Its graduation rate is 93.1% and dropout rate 4.1%, both close to district figures.
Locally, Dartmouth High is the third-strongest school in its comparison group, behind Old Rochester Regional High (93rd, 74th percentile, 4 stars) and just behind Westport Middle-High School (141st, 60th percentile). It clearly outpaces Fairhaven High and the region's urban and charter schools, including B M C Durfee High, New Bedford High, Global Learning Charter Public School, Argosy Collegiate Charter School, and Whaling City Junior/Senior High School. Its 93.1% graduation rate is above the district's 92.4% and far above New Bedford High (84.8%) and B M C Durfee High (83.6%), though its 4.1% dropout rate is higher than Old Rochester's 0.7% and the two vocational schools, Diman Regional Vocational Technical High and Gr New Bedford Vocational Technical (0.6% each), which post very high graduation rates but lower test scores.
Academically, 2025–26 10th-grade MCAS results were mixed. Science (41.57%) and biology (44.8%) came in above state averages and are relative strengths, while English language arts (43.09%) and math (40.11%) fell below state averages — a sharp reversal from 2024–25, when both were well above state (ELA 62.25%, math 52.55%). That decline is the biggest item to watch. The school's effectiveness ranking is strongest for students with disabilities and for low-income students, and around average for boys. Dartmouth spends $15,360 per student (2020–21), less than most nearby districts, yet generally outperforms higher-spending urban schools.
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