Summary:
Chelsea has three middle schools — Clark Avenue School, Joseph A. Browne School, and Eugene Wright Science and Technology Academy — all serving grades 5–8 and all assessed with the MCAS Next Generation exam, together enrolling 1,596 students. Clark Avenue is the largest (673 students) and Eugene Wright the smallest (436). All three sit in the Chelsea district, which ranks 321st of 351 districts statewide, at the 9th percentile with 0 stars. Free/reduced-lunch percentages are blank for every school, so economic-disadvantage context is not available.
Eugene Wright is the clearest standout: it is the only school with a 1-star ranking, placing 387th of 478 in 2025–26 (19th percentile) versus the 9th percentile for both Clark and Browne. It leads in ELA (26.26%), Science (26.13%), and 8th-grade Civics (25.00%), roughly double the other two schools. Its Math, however, is weak at 11.68%. Clark Avenue has the best Math (15.61%) and the largest one-year math gain (+4.62 points), and its rank percentile climbed 5 → 6 → 9. Joseph A. Browne had the top Science score in 2024–25 (18.38%) before dropping to 10.67% in 2025–26, a -7.71-point swing, the largest subject-level decline in the data.
Math is the systemic weakness: 2025–26 all-grade Math ranges from 11.66% to 15.61% across the three schools, against 41.11% statewide. In ELA, Science, and Civics the schools also trail the state, though Eugene Wright exceeds the district in those three subjects in both years. Core averages improved at Clark (+2.22 points) and Eugene (+2.69) but fell at Browne (-2.88). Browne has the smallest classes (9.0 student-teacher ratio) and Clark the largest (12.7). Eugene spends the most per student ($17,990, from 2020–21) — older data that should not be read as a cause of results.
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