Summary
Sewell-Anderson is a K–5 elementary school at 25 Ontario Street in Lynn, MA, serving about 300 students as part of Lynn Public Schools, a district ranked 332 of 351 in Massachusetts (5th percentile, 0 stars). Within that context, Sewell-Anderson ranked 695 of 899 schools in 2025–2026, or the 23rd percentile with 1 star — above its district's percentile but still in the bottom quartile statewide. The school's relative position has slipped over the long term, from the 68th percentile in 2015–2016 to 41st in 2021–2022, 33rd in 2022–2023 and 2023–2024, 29th in 2024–2025, and 23rd in 2025–2026.
Compared with nearby Lynn elementary schools, Sewell-Anderson comes out on top of the immediate cluster. Its 2025–2026 all-grade proficiency rates were 28.21% in English language arts, 25.64% in math, and 24.39% in science — all above district averages and the best ELA result among nearby schools, ahead of Edward A Sisson (25.79%), Julia F Callahan (22.75%), and Lincoln-Thomson (20.91%). Math is essentially tied with Sisson, and 3rd grade ELA and math (both 31.71%) plus 5th grade ELA (29.27%) lead the nearby schools. Even so, all three subjects remain below the state averages of 40.03%, 41.11%, and 40.98%. Sewell-Anderson also has the highest student–teacher ratio among comparable peers at 12.9, and per-student spending of $16,648 in 2020–2021 — above most nearby schools but below Lincoln-Thomson and Callahan.
The biggest concerns are science and 5th grade math. Science fell from 53.13% in 2023–2024 to 39.13% in 2024–2025 and 24.39% in 2025–2026, a 28.74-point two-year drop. Fifth-grade math sits at 14.63%, only slightly above the district's 12.8% and far below the state's 39.5%, trailing Sisson, Tracy, Robert L Ford, and Lincoln-Thomson. In 2025–2026, students in special education, English learners, low-income students, and male students all ranked roughly in the bottom fifth of the state, down from higher positions in earlier years; subgroup sizes and free/reduced lunch data are not available, so these patterns should be read with caution. The clearest priorities are rebuilding science and closing the 5th-grade math gap while preserving early-grade ELA and math strengths.
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