Summary
Cyrus E Dallin is a K–5 elementary school at 185 Florence Avenue in Arlington, MA, serving 390 students in a highly rated suburban district just northwest of Boston. It sits inside the Arlington district, which ranks 17th of 351 Massachusetts districts (95th percentile, 5 stars), and Dallin itself ranks 75th of 899 elementary schools statewide for 2025–2026 — 92nd percentile, 5 stars. That continues a decade-long climb: the school hovered near the 78th–79th percentile in 2016–2018, and its only recent wobble was 2023–2024 (85th percentile, 4 stars), a one-year dip it quickly reversed.
The school's signature strength is English language arts. At 71.65% proficient, Dallin leads all four Arlington peers in ELA, and its 4th grade ELA result (73.77%) is nearly 10 points above the district. Math and science are the weak spots. Dallin's math proficiency (63.96%) is the lowest among the Arlington comparison schools, and the shortfall is concentrated in 5th grade: 55.74% proficient versus 68.41% district-wide. Fourth-grade math, by contrast, is above district. Science (70.49%) trails the district's 77.78%, while nearby John A Bishop posts 89.23%.
One standout: special-education students rank 17th of 709 schools statewide — 98th percentile, 5 stars — after 78th and 96th the prior two years. Resources are ordinary ($17,108 per student, 12.1:1 ratio); 2.1 miles away, Northeast Elementary School spends $23,912 per student with smaller classes yet ranks 589th of 899. Note that Winn Brook, Roger E Wellington, and Daniel Butler serve grades K–3 or PK–3 only, so their scores reflect a single tested grade. Bottom line: strong ELA and exceptional special-education results, with 5th-grade math and science consistency as the priorities.
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