Portsmouth High School is a public high school located in Portsmouth, New Hampshire with a current enrollment of approximately 1,100.
Serving 1,014 students in grades 9-13, Portsmouth High School ranks in the top 20% of all schools in New Hampshire for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 53% (which is higher than the New Hampshire state average of 42%). The percentage of students achieving proficiency in reading/language arts is 79% (which is higher than the New Hampshire state average of 51%).
The student-teacher ratio of 11:1 is equal to the New Hampshire state level of 11:1.
Minority enrollment is 19% of the student body (majority Hispanic and Asian), which is higher than the New Hampshire state average of 18% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-13
- Enrollment: 1,014 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 19%
- Graduation Rate: 97% (Top 5% in NH)
- Overall Testing Rank: Top 20%
- Math Proficiency: 53% (Top 30%)
- Reading Proficiency: 79% (Top 5%)
- Science Proficiency: 35% (Btm 50%)
- Attendance Zone: Portsmouth High School's attendance zone covers the entire school district in Portsmouth, NH, encompassing an area of approximately 15.7 square miles. Most families can expect a typical drive to the school of 5-10 minutes, with the furthest edge of the zone located about 3.2 miles away.
- Source: National Center for Education Statistics (NCES), NH Dept. of Education
Top Rankings
Portsmouth High School ranks among the top 20% of public schools in New Hampshire for:
Category
Attribute
Overall Rank
Most improved public schools
Reading/Language Arts Proficiency
Graduation Rate
School Overview
Portsmouth High School's student population of 1,014 students has declined by 5% over five school years.
The teacher population of 89 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-13
(No virtual instruction)
(No virtual instruction)
Total Students
1,014 students
Total Classroom Teachers
89 teachers
School Calendar
School Motto
The purpose of the Portsmouth schools is to educate all students by challenging them to become thinking, responsible, contributing citizens who continue to learn throughout their lives.
School Rankings
Portsmouth High School ranks within the top 20% of all 455 schools in New Hampshire (based off of combined math and reading proficiency testing data).
The diversity score of Portsmouth High School is 0.34, which is more than the diversity score at state average of 0.33. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#56 out of 455 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
53%
42%
Reading/Language Arts Test Scores (% Proficient)
79%
51%
Science Test Scores (% Proficient)
35%
36%
Student-Teacher Ratio
11:1
11:1
American Indian
n/a
n/a
Asian
5%
3%
Hispanic
6%
8%
Black
1%
2%
White
81%
82%
Hawaiian
n/a
n/a
Two or more races
7%
5%
All Ethnic Groups
Graduation Rate
97%
88%
Chronically Absent Students
(22-23)28.4%
24.8%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
10%
20%
Eligible for Reduced Lunch
1%
4%
School Statewide Testing
School District Name
Sports
Colors
White, Maroon, Gold
Source: National Center for Education Statistics (NCES), NH Dept. of Education
Frequently Asked Questions
What is Portsmouth High School's ranking?
Portsmouth High School is ranked #56 out of 455 schools, which ranks it among the top 20% of public schools in New Hampshire.
What schools are Portsmouth High School often compared to?
Portsmouth High Schoolis often viewed alongside schools like Exeter High School, Winnacunnet High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
53% of students have achieved math proficiency (compared to the 42% NH state average), while 79% of students have achieved reading proficiency (compared to the 51% NH state average).
What is the graduation rate of Portsmouth High School?
The graduation rate of Portsmouth High School is 97%, which is higher than the New Hampshire state average of 88%.
How many students attend Portsmouth High School?
1,014 students attend Portsmouth High School.
What is the racial composition of the student body?
81% of Portsmouth High School students are White, 7% of students are Two or more races, 6% of students are Hispanic, 5% of students are Asian, and 1% of students are Black.
What is the student-teacher ratio of Portsmouth High School?
Portsmouth High School has a student ration of 11:1, which is equal to the New Hampshire state average of 11:1.
What grades does Portsmouth High School offer ?
Portsmouth High School offers enrollment in grades 9-13 (No virtual instruction).
What school district is Portsmouth High School part of?
Portsmouth High School is part of Portsmouth School District.
School Reviews
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