Summary:
ZIP code 03440, which includes Antrim, New Hampshire, has one middle school: Great Brook School. The school serves grades 5–8 and enrolls 224 students in the Contoocook Valley School District. Great Brook earned a three-star rating for 2025–2026 and ranked near the middle of New Hampshire schools, improving from the 35th percentile the previous year to the 51st percentile. Its 8.2-to-1 student-teacher ratio is relatively low, and 27.68% of students qualified for free or reduced-price lunch in 2024–2025.
Great Brook’s strongest academic area is reading. In 2025–2026, 59% of students were proficient in reading, compared with 56% in the district and 55% statewide. Reading results were particularly strong in sixth and seventh grades, at 63% and 64% proficiency, respectively. The school also improved substantially in reading from the prior year, when 49% of students were proficient. Mathematics performance was more moderate: 38% of students were proficient, six points below the state and two points below the district, although this was a three-point improvement. Seventh-grade math was the strongest at 43%, while sixth-grade math was lowest at 35%.
Science is the most important area for improvement. Only 31% of students were proficient, seven points below the state, and performance declined from 36% the previous year. Eighth-grade science was especially weak at 29%, compared with 37% statewide. Eighth grade also had the school’s lowest reading result, at 52%, suggesting that this grade may merit additional academic support. Overall, Great Brook offers a mixed but improving profile: families can expect a notable strength in reading, smaller-group conditions, and recent gains in the school’s ranking, while mathematics—especially sixth grade—and science, particularly eighth grade, remain key challenges.
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