Summary:
Winthrop, Massachusetts is served by a single public high school: Winthrop High School, which enrolls 568 students in grades 9–12 and belongs to the Winthrop district (district rank 204 of 351, 42nd percentile, 2 stars). Because it is the only high school in town, there is no cross-town comparison to make; the most useful benchmarks are state averages and the school's own prior years. The school reports a 15.3 student-teacher ratio for 2024–2025 and per-student spending of $14,401 for 2020–2021. Free/reduced-lunch percentages are not reported in the available data, so socioeconomic context cannot be assessed.
Academically, Mathematics is the clear bright spot. In 2025–2026, 10th grade math proficiency was 52.17% against a state figure of 43.73% — about 8.4 percentage points higher — and it rose 6.91 points from 45.26% the year before. English Language Arts, however, slipped to 41.38% from 45.26% and sat about 4.1 points below the state. Science improved to 35.19% but still trailed the state's 40.50% by roughly 5.3 points, a much narrower gap than the prior year's 13.7-point shortfall. Biology End-of-Course proficiency was 29.77% versus 37.68% statewide, though the earlier Biology figure covered a different grade grouping and is not directly comparable. In 2025–2026 the school and district values are identical for ELA, math, and science, reflecting that this is the district's only high school.
Overall standing improved modestly: the school moved from 203 of 349 (42nd percentile) in 2024–2025 to 183 of 353 (48th percentile) in 2025–2026, remaining a 2-star school and still below its 2023–2024 peak of 122 of 348 (65th percentile, 3 stars). The graduation rate was 91.2% and the dropout rate 5.0% for 2024–2025 — solid figures, though no state benchmark is included here. The bottom line for families: math performs above the state, while ELA, science, and biology lag, and overall the school sits mid-pack.
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