Summary:
Chilmark, Massachusetts is served by a single public school — Chilmark Elementary, a K–5 campus with 69 students at 8 State Road, in the Up-Island Regional district — so families here have one very small elementary option and no local middle or high school in this dataset.
On the merits, that one school stands out. Chilmark Elementary ranked 12th of 906 Massachusetts schools in 2024–2025 (99th percentile, 5 stars) and 24th of 899 in 2025–2026 (97th percentile, 5 stars), a large jump from the 71st percentile in 2016–2017. In 2025–2026, all-grades MCAS proficiency was 75.68% in ELA, 67.57% in math, and 83.33% in science, against state rates of 40.03%, 41.11%, and 40.98%. Science was the strongest showing, more than 42 percentage points above the state. Fifth grade was the brightest spot of all: 83.33% proficient in ELA and 75% in math, compared with roughly 38–40% statewide, while third-grade results, though still well above the state, were only about 7 percentage points above the district. The school also reports a student-teacher ratio of 6.8 and per-student spending of $31,454 (2020–2021). Its district, Up-Island Regional, ranks 66th of 351 districts (81st percentile, 4 stars), so the school outranks an already solid district.
A few caveats are worth knowing. ELA slipped from 83.87% in 2024–2025 to 75.68% in 2025–2026, a drop of 8.19 percentage points, while math was essentially flat (67.74% to 67.57%); even so, both remained far above district and state. With only 69 students across K–5, grade-level percentages rest on tiny cohorts, so one or two students can move a rate by many points. The free/reduced-price lunch figure is blank for 2024–2025 and should be read as unknown, not zero, and the spending figure is several years old.
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