Summary:
ZIP code 02474 in Arlington, Massachusetts is served by a single middle school — Gibbs School — a grade-6-only school with 529 students at 41 Foster Street, operating within the Arlington district, which ranks 17th out of 351 Massachusetts districts, at the 95th percentile with 5 stars. Because there is no second middle school in this ZIP code, the most meaningful benchmarks are the district and the state rather than a local peer school.
Gibbs posts strong MCAS Next Generation results. In 2025–2026, 71.18% of its students were proficient in English Language Arts and 68.56% in Mathematics at the All Grades level, compared with state rates of 40.03% and 41.11% — a gap of roughly 26 to 31 percentage points. Since the school serves only sixth grade, its All Grades and 6th Grade figures are identical (71.18% ELA and 68.56% Math), while district All Grades and district 6th grade rates differ, reflecting different results in other Arlington grades. In 2024–2025, Gibbs reported 70.55% ELA and 70.38% Math. Year over year, ELA rose 0.63 points while Math declined 1.82 points, leaving both subjects far above state levels. Gibbs sits close to its district overall: ELA slightly above the district All Grades rate, and Math slightly below it but above the district's 6th grade rate.
Some context data is missing or dated. The free/reduced-lunch percentage for 2024–2025 is not reported, so socioeconomic context cannot be assessed. Per-student spending of $17,510 is from 2020–2021, while test scores and the student–teacher ratio of 12.4 come from later years, so those figures are not directly comparable. Dividing enrollment by the reported ratio implies roughly 43 teachers — a derived estimate, not a reported figure. Finally, the district's 17th-place rank and 95th percentile describe Arlington as a whole, not Gibbs School on its own.
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