Portsmouth High School

Located at 50 Andrew Jarvis Dr., in Portsmouth, New Hampshire, Portsmouth High School is a sprawling secondary school that serves 1,017 students (grades 9 through 13), part of Portsmouth School District. That puts it 105% larger than the typical public school in New Hampshire, which averages around 496 students.

Across the 6 schools in Portsmouth School District (2,427 students total), Portsmouth High School accounts for its share of the district's footprint.

Looking at the student body, Portsmouth High School shows that the student body is overwhelmingly White (81%). Other groups include 8% multiracial, 6% Hispanic, 5% Asian. The wider county runs roughly 91% White, putting the school's mix visibly less White than the area baseline.

On the resource side, Portsmouth High School lists 89 full-time-equivalent teachers, putting the student-to-teacher ratio at about 11.4:1. That tracks the state average closely. Around 11% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator.

Adjusting for the school's free-and-reduced-lunch share, Portsmouth High School tracks the demographic baseline. The model predicts 56.5% given the school's FRL share; actual proficiency is 64.3%.

In the area at large, the surrounding county (Rockingham County) reports that the typical household earns roughly $118,331 per year, roughly 46% of adults have completed at least a four-year degree, and roughly 3% of residents live below the federal poverty line. In all, Rockingham County runs 99 public schools (combined enrollment of about 41,753 students), of which Portsmouth High School is one.

The closest other public school is PEEP School - Pre School Program, roughly 0.8 miles away. Counting just inside five miles, 8 other public schools cluster around Portsmouth High School. Ranking that nearby cluster on reported proficiency puts Portsmouth High School at 5th of 6; the average score across the group is 75.4%.

Portsmouth High School operates from an outer-ring location.

Five-year trend. Over the past 7-year window, the student count fell 7%: 1,096 students in 2018 compared to 1,017 in 2025. White enrollment moved from 86% to 81% across the same window.

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