Summary:
ZIP code 03603 has one middle school, Charlestown Middle School, serving grades 5–8 in a small community in southwestern New Hampshire. The school enrolls 168 students and is part of the Fall Mountain Regional School District. Its student-teacher ratio is 9.3:1, and 41.07% of students qualified for free or reduced-price lunch in 2024–2025. Since there is only one middle school in the ZIP code, comparisons are most useful against district and statewide results.
Charlestown Middle School shows its strongest overall performance in reading, where 43% of students were proficient in 2025–2026, compared with 49% in the district and 55% statewide. Sixth-grade reading was a particular bright spot, with 51% proficiency—matching the district and nearly matching the state. Science is another relative strength: 32% of students were proficient, only six points below the state. Fifth-grade science was especially encouraging at 42%, exceeding both district and state results of 38%. The school also has a low student-teacher ratio, which may support small-group instruction and individualized help.
Mathematics is the clearest area for improvement, with 25% proficiency overall compared with 35% in the district and 44% statewide. Fifth-grade mathematics was especially low at 14%, while seventh grade was 21%. Reading also declined in the upper grades, falling to 39% in seventh grade and 33% in eighth grade. Eighth-grade science was another concern at 24%. Even so, the school’s statewide percentile ranking improved from the 9th percentile in 2023–2024 to the 22nd percentile in 2025–2026, and mathematics improved by five percentage points in the latest year. Overall, the data indicate gradual progress, with the greatest need for targeted mathematics support and stronger seventh- and eighth-grade instruction.
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