Summary:
ZIP code 03431 has one middle school, Keene Middle School, serving grades 6–8 in Keene, New Hampshire. The school enrolls 626 students and is part of the Keene School District. With a student-teacher ratio of 10.8 to 1, it offers a relatively small-staffing environment, and 31.79% of students qualify for free or reduced-price lunch.
Keene Middle School has shown substantial recent improvement. Its ranking rose from the 19th percentile in 2023–24 to the 57th percentile in 2025–26, while its rating increased from one star to three stars. In the latest results, 57% of students were proficient in reading, 42% in mathematics, and 42% in science. Reading is the clearest strength, with school results above the state in sixth, seventh, and eighth grade. Science is also favorable: the school’s eighth-grade result was 42%, compared with 37% statewide. Overall performance is close to, or slightly better than, district and state averages.
Mathematics has improved the most, rising 10 percentage points from 32% in 2024–25 to 42% in 2025–26. However, performance varies considerably by grade. Sixth-grade math proficiency was 47% and seventh-grade proficiency was 46%, while eighth-grade proficiency was 32%, eight points below the state result. This makes eighth-grade math the most important area for families to monitor. The school’s overall results are similar to those of the Keene School District, which also has a three-star rating and ranks near the middle-to-upper-middle range statewide. For parents, the main takeaway is that Keene Middle School is improving, with consistent reading strength and promising science performance, while continued attention to upper-grade math could produce further gains.
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