Summary
Arlington High is a public comprehensive high school in the Arlington, MA area, serving grades 9–12 and enrolling 1,677 students. For 2025–2026, it ranks 16th of 353 high schools in Massachusetts — 95th percentile, 5 stars — and its district ranks 17th of 351 districts in the state. Its long-term trend is strongly upward, from 74th percentile in 2017–2018 to 95th–97th percentile in recent years.
Compared with nearby comprehensive high schools, Arlington is a top-tier school that sits just below the very highest-ranked suburbs. In 2025–2026, its 10th-grade proficiency rates were 78.19% in English Language Arts, 82.96% in Math, 73.62% in Science, and 80% in Physics, all far above state rates. Belmont High, Lexington High, and Winchester High School generally score higher — for example, their Math proficiency rates were 87.00%, 90.05%, and 85.09%, respectively — while Arlington clearly outperforms Cambridge Rindge and Latin, Watertown High, Medford High, and Somerville High.
Arlington also posts elite outcomes: a 98.2% graduation rate and 0.5% dropout rate in 2024–2025, roughly comparable to the other top nearby suburbs and better than the lower-ranked nearby schools. It achieves this with moderate resources — $16,663 per student in 2020–2021 and a 13.6 student-teacher ratio — while Cambridge Rindge and Latin's district spent $32,729 per student with a 9.2 ratio but lower proficiency and graduation results. Watch items include a Biology proficiency dip to 27.27% in 2023–2024 (from 63.64% in 2022–2023) and year-to-year variability for some student groups; free/reduced-lunch data is not reported, limiting a fuller equity picture.
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