Merrimack High School
Merrimack, NH · High School · Grades 9-12
Merrimack High School is a high school in Merrimack, NH with 1,113 students enrolled and a 76% proficiency rate. Part of Merrimack School District. NCES data from the U.S. Department of Education.
Merrimack High School is a high school in Merrimack, NH, enrolling 1,113 students in grades 9-12 within the Merrimack School District. That headcount is above the 594-student average for schools in the district.
On the latest EDFacts assessments, 76% of students reached grade-level proficiency in combined math and reading — a rate near the top of the national distribution. That is 13 points above the 63% average for the Merrimack School District. Against the 60% New Hampshire statewide average, the school sits 16 points higher.
Over the last three reported years the district proficiency rate this school inherits has risen by about 23 points. As a high school, it reports a 93% adjusted-cohort graduation rate, the share of first-time ninth-graders who earn a regular diploma within four years.
The student-teacher ratio is 11.7 to 1, below the U.S. average of roughly 16 to 1, which generally allows more adult attention per student. A relatively low 5% of students qualify for free or reduced-price lunch.
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About This School
Merrimack High School is a high school located in Merrimack, New Hampshire. The school serves 1,113 students in grades 9-12. The student-to-teacher ratio is 11.7:1.
According to EDFacts assessment data, 76% of students meet grade-level proficiency standards in combined math and reading. The school reports a 93% graduation rate.
5% of students qualify for free or reduced-price lunch.
Merrimack High School is part of the Merrimack School District in New Hampshire.
How This School Compares
Merrimack High School has 1,113 students enrolled, making it larger than the average school in Merrimack School District (594 students). Its 76% proficiency rate is 13 percentage points above the district average of 63%. Compared to the New Hampshire state average of 60%, the school performs 16 points higher. With a 11.7:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Merrimack High School has 1,113 students enrolled in grades 9-12. The student-to-teacher ratio is 11.7:1.
According to EDFacts data, 76% of students at Merrimack High School meet grade-level proficiency standards in combined math and reading assessments.
Merrimack High School has a 93% graduation rate, measuring the percentage of students who graduate within four years.
Merrimack High School is part of the Merrimack School District in Merrimack, New Hampshire. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
Source: NCES Common Core of Data, 2026.