Summary:
Nantucket has just one public high school — Nantucket High — serving about 596 students in grades 9–12 at 10 Surfside Road, so there are no in-town school-to-school comparisons; the useful benchmarks are the Nantucket district, the state, and the school's own prior years.
The school's clearest academic strength is Biology, which beat the state in both reported years — 41.67% proficient versus the state's 37.68% in 2025–2026, and 44.44% versus 39.02% in 2024–2025. Tenth-grade ELA was a standout in 2024–2025 at 64.29%, compared with the state's 50.66%, a 13.63-point advantage. The graduation rate was 91.8%, slightly above the district's 90.6%, and resource indicators look favorable, with a 10.8 student-teacher ratio in 2024–2025 and $24,317 per-student spending in 2020–2021.
Results are uneven, though, and the ranking trend is the biggest concern. Nantucket High fell from 132 of 348 schools in 2023–2024 (62nd percentile, 3 stars) to 203 of 353 in 2025–2026 (42nd percentile, 2 stars). In 2025–2026, all three 10th-grade core subjects trailed the state: ELA at 38.21% versus 45.48%, Mathematics at 35.77% versus 43.73%, and Science at 32.74% versus 40.50%. Physics is the weakest area, at 17.39% versus the state's 44.25% in 2024–2025 and 30% versus 46.58% in 2025–2026. The dropout rate was 6.3%, slightly above the district's 6.2%. The free/reduced lunch percentage is blank, so the share of economically disadvantaged students is unknown and should not be read as 0%.
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