Summary
Cunniff is a PK–5 elementary school at 246 Warren Street in Watertown, MA, serving about 320 students as part of Watertown Public Schools. In 2025–2026 it ranked 324th of 899 Massachusetts elementary schools — the 64th percentile, 3 stars — a substantial jump from 671st of 938 (28th percentile, 1 star) in 2016–2017. The Watertown district itself ranks 110th of 351 statewide.
Cunniff scores above the state average in all three MCAS subjects: 42.45 in English language arts, 51.80 in math, and 60.42 in science. Science is the standout — 4.55 points above the district and 19.44 points above the state, and competitive with higher-ranked schools such as Horace Mann (60.00) in Newton, and ahead of Hosmer (51.85). ELA is the weaker area: 42.45 is below the Watertown district (45.83), and 4th-grade ELA (32.00) is the school's lowest grade-level result. Fifth-grade ELA, by contrast, is 52.08 — suggesting a grade-level or cohort pattern rather than a school-wide one. Math sits at the district average and 10.69 points above the state, but trails most nearby schools, including Underwood (60.33) and Cabot (61.27).
Cunniff is resource-intensive: its student–teacher ratio of 8.0 is the lowest among the nearby schools shown, and per-pupil spending of $24,988 is the highest, well above Daniel Butler ($16,339) in Belmont. Subgroup effectiveness rankings were mixed and volatile this year, with some groups slipping from stronger 2024–2025 results — worth monitoring, though small group sizes can cause swings. Overall, Cunniff is an improving, mid-high-performing school with a genuine strength in science; raising ELA, especially in 4th grade, is its clearest next step.
Thank you for your feedback!