Summary:
ZIP code 03451 has one public high school, Hinsdale High School, serving grades 9–12 in the small New Hampshire community of Hinsdale. The school enrolls about 155 students and has a very low student–teacher ratio of 7.1:1, which may allow for more individualized attention. About 39% of students qualify for free or reduced-price lunch, indicating that many families may face economic challenges that are relevant when considering school outcomes.
Hinsdale High School has some encouraging measures alongside significant concerns. Its 2024–2025 graduation rate was 88.8%, slightly above New Hampshire’s 87.0% average. The school also performed better than the Hinsdale School District in 2025–2026 reading, with 43% of students proficient compared with 33% districtwide, and in science, with 23% compared with 20%. Reading is the school’s strongest tested subject. However, the school remained below statewide results in every subject: New Hampshire proficiency was 55% in reading, 38% in science, and 44% in mathematics.
Mathematics is the most urgent academic concern, with only 14% of students proficient—30 percentage points below the state—and performance declined in all three tested subjects from the prior year. The school’s overall ranking also fell from the 30th percentile in 2023–2024 to the 11th percentile in 2025–2026. Parents should also note the 5.5% dropout rate, more than twice the statewide rate of 2.3%, despite the relatively solid graduation rate. Overall, Hinsdale offers a small-school setting and appears stronger in reading and graduation completion than its district, but families should ask about math support, academic interventions, attendance and dropout prevention, course offerings, and how the school is addressing recent declines.
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