Summary:
ZIP code 02150 in Chelsea, MA is home to three middle schools — Clark Avenue School, Joseph A. Browne School, and Eugene Wright Science and Technology Academy — all serving grades 5–8 and all part of the Chelsea school district. Together they enroll 1,596 students. Clark Avenue is the largest with 673 students, followed by Browne at 487 and Wright at 436.
Among the three, Eugene Wright Science and Technology Academy is the clear relative standout. It is the only school in the group with a star, ranking 387 of 478 at the 19th percentile, and it leads in ELA (26.26%), science (26.13%), and civics (25.00%). It is also the only one above the Chelsea district average in those three subjects, and it posted big year-over-year gains in science (+8.64 points) and civics (+9.37 points). Its weakness is math: 11.68%, essentially tied with Browne and below Clark, with a 6th-grade math score of 5.10%. Clark Avenue School stands out as the largest school with the highest math proficiency (15.61%) but the lowest civics (8.97%), and its rank has improved over time. Joseph A. Browne School has the lowest science proficiency (10.67%) after a sharp 7.71-point science decline, along with the smallest classes (9.0 students per teacher) and the highest per-student spending after Wright.
Parents should know that all three schools sit well below Massachusetts proficiency levels of about 40% in each subject, and all three trail the Chelsea district math average of 21.96%. Math is the shared weak spot across the ZIP code. Performance also shifts a lot by grade, so school-wide averages can hide real differences — Wright leads 5th, 7th, and 8th grade ELA, for example, while Browne leads 6th grade. Spending and class size do not line up neatly with results, and because free/reduced lunch data is missing and spending figures date to 2020–2021, comparisons should be made with care.
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