Summary:
Zip code 02152 covers Winthrop, Massachusetts, and contains exactly one middle school: Winthrop Middle School, which serves grades 6–8 with 439 students and belongs to the Winthrop district. Because it is the only middle school in this area, parents have no local alternative to compare it against; the most useful benchmarks are the district and Massachusetts state averages.
Against those benchmarks, the school performs strongly. Its state ranking has been remarkably stable, sitting at 127th of 478 schools (73rd percentile, 4 stars) in 2025-2026, after 128th of 484 and 129th of 493 in the two prior years. The district as a whole is rated far lower — 204th of 351, the 42nd percentile, with 2 stars. In 2025-2026, all-grade ELA proficiency was 51.93%, about 11.9 points above the state and 11.95 points above the district, while math proficiency was 53.78%, roughly 12.7 points above the state and 11.5 points above the district.
Grade-level results reinforce that picture: the school exceeded the district in all eight reported grade-level comparisons and beat the state in seven. Seventh-grade ELA was the standout at 60.00% versus 39.91% statewide, and eighth-grade math reached 58.70% against a state figure of 41.67%. Science is the clear caution — 36.96%, below both the district's 39.10% and the state's 40.98% — though eighth-grade science was slightly ahead of the district's eighth-grade rate. Civics improved from 36.49% to 40.58% year over year, moving above the state average, while ELA slipped from 56.00% to 51.93% but remained well above the state. Free/reduced lunch data is not provided; the student-teacher ratio is 13.2 and per-student spending is $14,570.
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