Summary:
ZIP code 03458, covering Peterborough, New Hampshire, has two elementary schools serving 565 students: Lionheart Classical Academy Chartered Public School, serving kindergarten through grade 8, and Peterborough Elementary School, serving prekindergarten through grade 4. Because the schools serve different grade ranges, their overall results are not based on identical student populations. Both schools recorded 45% math proficiency and 54% reading proficiency in 2025–26, close to statewide levels.
Peterborough Elementary School, part of the Contoocook Valley School District, appears stronger in early elementary reading. Reading proficiency was 54% in both grade 3 and grade 4, exceeding state results in each grade. The school also has a lower student-teacher ratio of 10.3 to 1. Its main concern is mathematics: overall proficiency fell from 60% in 2024–25 to 45% in 2025–26, with grade 4 math at 38%. This decline coincided with a substantial drop in its statewide ranking, from the 78th percentile to the 45th percentile over three years.
Lionheart Classical Academy Chartered Public School, operated by Lionheart Classical Academy, has more uneven results but notable upper-grade strengths. Reading proficiency reached 61% in grade 6, 75% in grade 7, and 56% in grade 8, while early-grade reading was weaker. Math was above the state in grades 3, 6, and 7 but below it in grades 4, 5, and 8. Lionheart’s math and reading results improved year over year, but science remained a weakness at 25% overall, including just 19% in grade 5. Overall, Peterborough is more consistent in early-grade reading, while Lionheart shows stronger later-grade reading and recent academic improvement.
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