Summary:
ZIP code 03857 has one listed middle school, Newmarket Junior-Senior High (Elem), serving grades 6–8 in the Newmarket community. The school enrolls 225 students and is part of the Newmarket School District, so there is no within-ZIP comparison; the most useful benchmarks are district and New Hampshire results.
Newmarket Junior-Senior High (Elem) is performing above state averages in every reported subject. In 2025–2026, proficiency was 58% in math, 67% in reading, and 53% in science, compared with statewide rates of 44%, 55%, and 38%. Reading is the strongest subject overall, with particularly good sixth-grade performance at 72%. Science has the largest advantage over the state and improved 10 percentage points from the prior year. Math also made a notable 9-point gain, although sixth-grade math at 53% was below seventh grade’s 64%. The school’s average proficiency across the three subjects was about 59%, compared with roughly 55% for the district and 46% statewide.
The school’s broader trend is encouraging. Its ranking improved from 73rd of 130 schools in 2023–2024 to 26th of 138 in 2025–2026, while its reported percentile rose from the 44th to the 81st percentile and its rating increased from two stars to four. The 10.4-to-1 student-teacher ratio may support more individual attention, though comparable statewide figures were not provided. Reading dipped slightly from the previous year but remained strong, while math and science improved substantially. Overall, families are looking at a small middle-school environment with consistently above-state academic results, strong recent momentum, and no competing middle school in the ZIP code.
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