The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
SCHOOL COMMUNITY·PORTSMOUTH SCHOOL DISTRICT·NCES 330582000379

Portsmouth High School

50 Andrew Jarvis Dr., Portsmouth, NH 03801 · (603) 436-7100 · Rockingham County
GRADES 09–13HIGH23-SUBURBREGULAR SCHOOL1,017 STUDENTS
A+
allk12 Grade
Scored higher than 97% of New Hampshire public high schools
  • ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • A+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New Hampshire public high schools

Enrollment
1,017
High
DISTRICT 405 · STATE 496
Student : Teacher
11.4:1
89 FTE teachers
DISTRICT 8.9:1 · STATE 11.2:1
Free / Reduced Lunch
11%
112 students
DISTRICT 18% · STATE 26%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 924824%
Grade 1026226%
Grade 1125025%
Grade 1225425%
Student demographics
34%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 37% · STATE 33% · US 70%
White
82281%
DISTRICT 78% · STATE 81% · US 43%
Hispanic
596%
DISTRICT 6% · STATE 8% · US 30%
Black
71%
DISTRICT 1% · STATE 2% · US 15%
Asian
495%
DISTRICT 6% · STATE 3% · US 6%
Two+
788%
DISTRICT 8% · STATE 5% · US 5%
Native American
10%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
51851%
Female
49949%

School pathway

Feeds from
Portsmouth Middle School06–08
Based on grade levels within Portsmouth School District. Attendance zones can vary; confirm enrollment with the district.

Discussions

+ POST

Test scores

NHSAS 2024-25 . % Above Proficient
English Language Arts
80.0%
NH avg 55.2%
Math
52.0%
NH avg 43.0%

What this means: On the NHSAS, New Hampshire's statewide test, about 80 of every 100 students at this school read and write at grade level and about 52 of 100 do math at grade level. Across all New Hampshire schools, those numbers are about 55 and 43.

Source: NHSAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
64.3%
composite math + reading, all grades
Predicted
56.5%
based on NH schools with similar FRL share
Beats by
+7.9pp
above demographic expectation

What this means: About 64% of students here test proficient in math and reading, compared with the roughly 56% typical for New Hampshire schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New Hampshire's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Portsmouth High School

Portsmouth High School's state test result (64.3% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Portsmouth High School this school1,01711.0%64.3%
Oyster River High School
Durham
8257.4%65.3%
Pelham High School
Pelham
50811.0%35.3%
Merrimack High School
Merrimack
1,05711.0%47.7%
Alvirne High School
Hudson
97616.0%43.0%
Salem High School
Salem
1,11614.9%44.3%
Matched among New Hampshire high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Portsmouth High School ranks

Among high schools
MeasureThis schoolIn New HampshireIn Rockingham County
State test proficiency
ranked highest first
64.3%#5 of 78#2 of 14
Math proficiency
ranked highest first
52.0%#7 of 74#2 of 14
Reading proficiency
ranked highest first
80.0%#9 of 78#4 of 14
Enrollment
ranked largest first
1,017#15 of 103#5 of 17
Students per teacher
ranked fewest first
11.4:1#26 of 68#7 of 13
Diversity index
ranked most diverse first
33.5%#14 of 68#3 of 13
Free and reduced lunch
ranked highest share first
11.0%#62 of 80#7 of 14
Enrollment change since 2017-18
ranked steepest decline first
-7.2%#44 of 60#8 of 11
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
1,017
-61 (-6%) vs 2020
-1% since 1990-91, when it was 1,024
Student : Teacher
11.4:1
was 12.3:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,0178911.4:111% (112)
2023-241,0258711.8:110% (98)
2022-231,0328811.7:111% (112)
2020-211,0788812.3:18% (81)
2017-181,09689.412.3:110% (115)
2015-161,1088612.9:115% (170)
2010-111,1198712.9:119% (209)
2000-011,0678712.3:113% (134)
1990-911,0248112.6:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Portsmouth High School.

Since 2017-18: students down 7% (1,096 to 1,017); teachers unchanged (89.4 to 89).

About Portsmouth High School

Portsmouth High School is classified as a high school. It is located in Portsmouth, New Hampshire. The school serves grades 9 through 13. Enrollment is 1,017 students. That is 105% larger than the average of about 496 students for high schools in New Hampshire.

Portsmouth High School is one school in Portsmouth School District, a system of 6 schools with 2,427 students.

Roughly 81% of students at Portsmouth High School are White. Other groups make up 8% multiracial, 6% Hispanic, and 5% Asian. County-wide, 91% of Rockingham County residents are White. Measured by the diversity index, the student body scores 34%.

Portsmouth High School lists 89 full-time-equivalent teachers; that is about 11.4 students per teacher. The average for high schools in New Hampshire is about 11.2:1. Free or reduced-price lunch covers 11% of the student body. That is in line with the 13% average for public schools in Rockingham County.

Portsmouth High School holds an A+ allk12 Grade, placing it above 97% of New Hampshire public high schools.

Given its share of students eligible for free or reduced-price lunch, Portsmouth High School would be expected to post about 56.5%. Its actual average proficiency rate across its state test results is 64.3%.

Rockingham County is the school's county. There, the median household earns about $118,331 a year, roughly 46% of adults have a four-year degree or more, and about 3% of residents live below the federal poverty line. Public schools in Rockingham County number 99, with about 41,753 students.

PEEP School - Pre School Program sits about 0.8 miles from Portsmouth High School. Within five miles of Portsmouth High School, there are at least 8 other public schools. Portsmouth High School places 5th of 6 on proficiency among the closest schools that report scores.

NCES assigns Portsmouth High School the locale Suburb: Small, meaning in a suburban area outside a principal city, within an urbanized area with a population under 100,000.

Over the 4 years from 2020-21 to 2024-25, enrollment decreased 6%.

The discussion board for Portsmouth High School is open to topics like athletics, class schedules, and weather closures. Parents, students, alumni, and staff are welcome to post.

Rockingham County at a glance

View full county profile
Population
319,082
Census ACS
Median income
$118,331
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
99
41,753 students

Quick facts

School name
Portsmouth High School
District
Portsmouth School District
Address
50 Andrew Jarvis Dr., Portsmouth, NH 03801
Phone
(603) 436-7100
County
Rockingham County
Level
High
Grade range
09–13
Total enrollment
1,017
Teachers (FTE)
89
Student–teacher ratio
11.4:1
Free and reduced lunch
112 (11%)
Locale
23-Suburb: Small
NCES ID
330582000379
Charter school
No
Virtual school
No

Related schools

Other schools in Portsmouth School District
Other schools in Portsmouth
Other Portsmouth High schools

One other US public school is named Portsmouth High. Portsmouth High School is the largest of the 2.

Nearby schools

Frequently asked questions

About Portsmouth High School
What is the total enrollment at Portsmouth High School?
Portsmouth High School enrolls approximately 1,017 students in grades 09-13.
What grades does Portsmouth High School serve?
Portsmouth High School serves grades 09-13.
How many teachers does Portsmouth High School have?
Portsmouth High School employs 89 FTE teachers, for a student-to-teacher ratio of 11.4:1.
What is the student diversity at Portsmouth High School?
Student demographics at Portsmouth High School are roughly 81% White, 6% Hispanic, 1% Black, 5% Asian, 8% Two or more.
What district is Portsmouth High School in?
Portsmouth High School is part of Portsmouth School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
+ Post