Summary:
ZIP code 03801 has one listed middle school serving grades 6–8: Portsmouth Middle School in Portsmouth, New Hampshire. The school enrolls 486 students and is part of the Portsmouth School District, a highly rated district in a community with strong overall academic results.
Portsmouth Middle School is consistently one of New Hampshire’s stronger middle schools. It ranked 13th out of 138 schools, in the 91st percentile, for 2025–2026 and received five stars. It has ranked among the state’s top 15 schools for three consecutive years. In the latest results, 77% of students were proficient in reading, compared with 55% statewide; 62% were proficient in math, compared with 44% statewide; and 52% were proficient in science, compared with 38% statewide. The school also has a relatively favorable student-teacher ratio of 10.3 to 1.
For parents, reading is the clearest strength. Results were very consistent across grades, ranging from 76% to 79% proficient, with no major decline in eighth grade. Math performance was solid in sixth and seventh grade, at 65% and 66%, but fell to 55% in eighth grade, making eighth-grade math an area worth monitoring. Science had the lowest overall proficiency rate at 52% and declined two points from the previous year, although it remained well above the state average. The school’s results were slightly below districtwide averages overall, but grade-level comparisons were generally close to or better than the district. Overall, the available data describe a high-performing school with especially strong reading outcomes and consistently above-average achievement in every tested subject.
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