Summary
Chilmark Elementary is a small K–5 school at 8 State Road in Chilmark, Massachusetts, on the western end of Martha's Vineyard, serving 69 students — roughly 11 to 12 per grade — as one of two schools in the Up-Island Regional district.
The headline for parents is that this tiny island school performs at the very top of Massachusetts, not just the top of its island. In 2025–2026 it ranked 24th of 899 schools (97th percentile, 5 stars), following a 12th-place, 99th-percentile, 5-star year. That is a long climb from the 51st percentile in 2013–2014 and well above its own district's 4-star, 81st-percentile rating. Its all-grade proficiency was 75.68 in ELA, 67.57 in math, and 83.33 in science, against state figures of 40.03, 41.11, and 40.98. Science is the standout: more than double the state and nearly 30 points above the next-best school nearby, Oak Bluffs Elementary. Its 5th graders posted 83.33 in ELA while the state's 5th grade sat at 38.15.
Comparisons sharpen the picture. West Tisbury Elementary shares Chilmark's district, its 6.8 student-teacher ratio, its island community, and similar per-student spending ($31,454 vs. $29,119), yet scored 49.16 in ELA — a 26.5-point gap. Spending alone explains little: Tisbury Elementary spends the most ($33,592) but scores below the state in ELA. Two caveats matter. With only 69 students, one child can shift a grade's results by about 8 points, so year-to-year swings are noisy even when the trend is clear. Also, free/reduced-price lunch data and Chilmark's 4th grade results were not available, and spending figures stop at 2020–2021.
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