Sudbury

Sudbury is a high-performing Massachusetts district with five listed schools — four elementary schools serving PK/K–5 and one middle school serving grades 6–8 — enrolling 2,529 students combined, with no high school or alternative school in this data set. The Sudbury district ranks 23rd of 351 in Massachusetts, at the 93rd percentile with 5 stars, and every listed school is currently in roughly the top 12% or better of its school-level ranking group.

Among elementaries, General John Nixon Elementary posts the highest all-grade math score at 74.53%, with Josiah Haynes close behind at 73.77%. Haynes and Nixon are the most consistently elite, holding 5 stars in all three years and ranking in the top 6–7% of elementary schools (58th and 59th of 899). Israel Loring School is the only 4-star school, with the lowest ELA (61.97%) and math (65.42%) in the group — still far above the state — but the highest science score at 78.18% and the only year-over-year improvement in all three subjects. Peter Noyes declined in ELA, math, and science from 2024–2025 to 2025–2026 yet remains 5 stars and ranked 89th of 899. Ephraim Curtis Middle has the highest ELA (70.20%), the second-highest math (74.08%), and the only civics score, at 63.36%.

Math is the district-wide strength: every school's all-grade math is at least 24 points above the state. Science comparisons need care, because elementary science is 5th grade only while Curtis's is 8th grade only; against the district's 8th grade science score of 62.03%, Curtis is slightly above at 62.36%. Grade-level swings are large within schools — Nixon's 4th grade math is 87.93%, but its 3rd grade math is 56.14%. Spending and student-teacher ratios do not track outcomes in a simple way, and free/reduced-lunch percentages are blank for every school, so socioeconomic context is unknown, not zero.