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SCHOOL COMMUNITY·MERRIMACK SCHOOL DISTRICT·NCES 330474000278

Merrimack High School

38 McElwain St., Merrimack, NH 03054 · (603) 424-6204 · Hillsborough County
GRADES 09–12HIGH22-SUBURBREGULAR SCHOOL1,057 STUDENTS
B
allk12 Grade
Scored higher than 62% of New Hampshire public high schools
  • B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C+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
1,057
High
DISTRICT 576 · STATE 496
Student : Teacher
12.5:1
85 FTE teachers
DISTRICT 12.0:1 · STATE 11.2:1
Free / Reduced Lunch
11%
116 students
DISTRICT 12% · 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 925824%
Grade 1025824%
Grade 1126725%
Grade 1227426%
Student demographics
23%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 26% · STATE 33% · US 70%
White
92487%
DISTRICT 86% · STATE 81% · US 43%
Hispanic
424%
DISTRICT 5% · STATE 8% · US 30%
Black
222%
DISTRICT 1% · STATE 2% · US 15%
Asian
293%
DISTRICT 2% · STATE 3% · US 6%
Two+
343%
DISTRICT 6% · STATE 5% · US 5%
Native American
30%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
30%
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
55452%
Female
50348%

School pathway

Feeds from
Merrimack Middle School07–08
Based on grade levels within Merrimack School District. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

NHSAS 2024-25 . % Above Proficient
English Language Arts
70.0%
NH avg 55.2%
Math
26.0%
NH avg 43.0%

What this means: On the NHSAS, New Hampshire's statewide test, about 70 of every 100 students at this school read and write at grade level and about 26 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
47.7%
composite math + reading, all grades
Predicted
56.5%
based on NH schools with similar FRL share
Beats by
-8.8pp
below demographic expectation

What this means: About 48% 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 Merrimack High School

Merrimack High School's state test result (47.7% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Merrimack High School this school1,05711.0%47.7%
Goffstown High School
Goffstown
1,00810.4%55.7%
Londonderry Senior High School
Londonderry
1,28910.9%55.3%
Exeter High School
EXETER
1,3487.2%60.3%
Timberlane Regional High School
Plaistow
94410.7%37.7%
Milford High School
Milford
65514.4%39.3%
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 Merrimack High School ranks

Among high schools
MeasureThis schoolIn New HampshireIn Hillsborough County
State test proficiency
ranked highest first
47.7%#22 of 78#6 of 21
Math proficiency
ranked highest first
26.0%#42 of 74#11 of 20
Reading proficiency
ranked highest first
70.0%#23 of 78#6 of 21
Enrollment
ranked largest first
1,057#14 of 103#6 of 25
Students per teacher
ranked fewest first
12.5:1#43 of 68#11 of 20
Diversity index
ranked most diverse first
23.2%#28 of 68#12 of 20
Free and reduced lunch
ranked highest share first
11.0%#63 of 80#17 of 22
Enrollment change since 2017-18
ranked steepest decline first
-11.9%#23 of 60#7 of 19
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
1,057
-119 (-10%) vs 2020
-10% since 1990-91, when it was 1,170
Student : Teacher
12.5:1
was 12.3:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,05784.612.5:111% (116)
2023-241,0959511.5:17% (76)
2022-231,1139511.7:15% (52)
2020-211,1769612.3:18% (97)
2017-181,20098.812.2:18% (98)
2015-161,2109912.2:19% (108)
2010-111,49310813.8:18% (126)
2000-011,50510414.5:12% (37)
1990-911,1707316.0:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Merrimack High School.

Since 2017-18: students down 12% (1,200 to 1,057); teachers down 14% (98.8 to 84.6).

About Merrimack High School

Merrimack High School is a public high-enrollment high school in Merrimack, New Hampshire. The school had 1,057 students in grades 9 through 12 in 2024-25. Average enrollment for high schools in New Hampshire is about 496, so this school runs 113% above that.

Merrimack High School is one school in a 6-school district, Merrimack School District, which enrolls 3,453 students.

Federal enrollment data show Merrimack High School is 87% White. After that, the student body is 4% Hispanic, 3% multiracial, 3% Asian, and 2% Black. The school's diversity index is 23%, meaning two students picked at random have a 23% chance of belonging to different racial or ethnic groups.

The count of teachers at Merrimack High School is 84.6 full-time equivalents, for a ratio of 12.5:1. That is 1.3 students per teacher above the 11.2:1 average for high schools in New Hampshire. Around 11% of the school's students qualify for free or reduced-price meals. That rate is below the 26% average among public schools in Hillsborough County.

The allk12 Grade for Merrimack High School is B. Compared with New Hampshire public high schools, the school scored higher than 62% on a mix of test scores, poverty-adjusted results, and recent trend.

Compared with New Hampshire schools that have similar shares of low-income students, Merrimack High School's results are 8.8 points below predicted: 47.7% against 56.5%.

Hillsborough County has about 426,378 residents, and the median household income is $103,545, the share of adults with a bachelor's degree or higher is 42%, and about 4% of people live in poverty. Besides Merrimack High School, Hillsborough County has 126 other public schools.

The closest public school, James Mastricola Elementary School, is about 0.4 miles from Merrimack High School. Other public schools within five miles: at least 8. Compared with its nearest neighbors, Merrimack High School ranks 6th of 9 on average proficiency.

NCES lists the school's locale as Suburb: Mid-size. That means it sits in a suburban area outside a principal city, within an urbanized area with a population between 100,000 and 250,000.

Over 4 years, Merrimack High School's enrollment declined 10%, to 1,057.

The allk12 site hosts a discussion page for Merrimack High School covering things like sports tryouts, band and choir, and theater. Reviews and ratings from people who know the school are welcome.

Hillsborough County at a glance

View full county profile
Population
426,378
Census ACS
Median income
$103,545
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
127
53,974 students

Quick facts

School name
Merrimack High School
District
Merrimack School District
Address
38 McElwain St., Merrimack, NH 03054
Phone
(603) 424-6204
County
Hillsborough County
Level
High
Grade range
09–12
Total enrollment
1,057
Teachers (FTE)
85
Student–teacher ratio
12.5:1
Free and reduced lunch
116 (11%)
Locale
22-Suburb: Mid-size
NCES ID
330474000278
Charter school
No
Virtual school
No

Related schools

Other schools in Merrimack School District
Other schools in Merrimack
Nearby schools

Frequently asked questions

About Merrimack High School
How many students attend Merrimack High School?
Merrimack High School enrolls approximately 1,057 students in grades 09-12.
What grades does Merrimack High School serve?
Merrimack High School serves grades 09-12.
How many students per teacher at Merrimack High School?
Approximately 12.5:1 students per teacher at Merrimack High School.
How diverse is Merrimack High School?
Merrimack High School reports a student body of 87% White, 4% Hispanic, 2% Black, 3% Asian, 3% Two or more.
Who oversees Merrimack High School?
Merrimack High School is overseen by Merrimack School District in Hillsborough County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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