Summary
Lexington High is a grades 9–12 comprehensive high school at 251 Waltham Street in the suburban town of Lexington, MA, serving 2,405 students — by a wide margin the largest school in its comparison group — and it currently ranks #1 of 353 Massachusetts high schools for 2025–2026. Its ranking history is remarkably steady: across ten reported years it has never fallen below the 96th percentile, and this year's #1 spot is its best standing in that record. The Lexington district ranks 6th of 351 statewide, so the high school is performing above the level of the district it belongs to.
Academic results are roughly double the state average. On 2025–2026 10th-grade assessments, 90.05% of students were proficient in math (state: 43.73%), 87.01% in science, 84.04% in English language arts, and 86.43% in biology. Completion outcomes are effectively perfect: a 99.7% graduation rate and a 0.0% dropout rate, both best or tied for best among nearby schools. Classes are small, with a student–teacher ratio of 11.4 — tighter than Belmont High (15.7) or Winchester High School (14.8). Notably, per-student spending of $18,852 (2020–21) ranks 7th of the 10 comparison schools, below Waltham Senior High, Watertown High, Woburn High, Burlington High, Bedford High, and Minuteman Regional High.
Against nearby peers, Lexington leads in math and biology, sits just behind Belmont in science, and places third in ELA, statistically level with Belmont and a hair behind Winchester. Among student populations, the school ranks #1 statewide for English Language Learner students and #3 for special education students — a measure of how well it serves those groups. Its ELA and math scores have drifted down since 2022–23, but the state's fell comparably, so its gap over the state stayed in a tight 38–49 point band. One caveat for families: free/reduced-price lunch data is unpublished here, so no economic-need analysis is possible.
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