Summary
Cyril K. Brennan Middle School is a 599-student public school serving grades 5–8 on Rathbun Willard Drive in Attleboro, MA, part of the Attleboro district. In 2025–26, the school ranked 238th of 478 Massachusetts schools—about the 50th percentile with 3 stars—near the state middle overall. Its ELA proficiency (38.43%) is slightly above the Attleboro district and close to the state, and it is the highest among Attleboro’s three middle schools, ahead of Robert J. Coelho Middle School (34.67%) and Wamsutta Middle School (34.84%). Sixth- and seventh-grade ELA are bright spots; 7th grade is 42.00%, above district and state. However, its math (34.82%), science (28.52%), and 8th-grade civics (28.08%) are below district and state, and lowest among Attleboro’s middle schools.
That split explains why the school ranks below Coelho and Wamsutta overall despite leading in ELA. In 2025–26, Wamsutta ranked 198th statewide, Coelho 215th, and the school 238th. Its science (28.52%) and 8th-grade civics (28.08%) are far below Coelho (45.23% and 41.94%) and Wamsutta (40.21% and 48.08%). Eighth grade is a concentrated weak point: ELA 33.78%, math 36.30%, science 24.66%, and civics 28.08%—all below district and state. Nearby higher-performing middle schools post stronger math, science, and civics results, including North Attleborough Middle, Dr. Kevin M. Hurley Middle School in Seekonk, Harold L Qualters Middle in Mansfield, and John J Ahern in Foxborough. For example, science at those schools ranges from 42.90% to 61.72%, compared with the school’s 28.52%.
Historically, the school was stronger—126th of 482 schools at the 74th percentile with 4 stars in 2015–16—before falling to the 39th percentile with 2 stars in 2018–19. Recent years have stabilized around the 50th percentile, and 2025–26 is an improvement over 2024–25 but not a return to its earlier high. Resources are not a simple explanation: it spent $14,198 per student in 2020–21 and had a 14.8 student-teacher ratio in 2024–25, similar to its same-district peers. Several higher-performing nearby districts spend more and have lower ratios, but North Attleborough outperforms it with slightly lower per-student spending and a lower ratio, suggesting school-level instructional or curricular factors may matter at least as much.
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