Londonderry Senior High School
Londonderry, NH · High School · Grades 9-12
Londonderry Senior High School is a high school in Londonderry, NH with 1,386 students enrolled and a 61% proficiency rate. Part of Londonderry School District. NCES data from the U.S. Department of Education.
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About This School
Londonderry Senior High School is a high school located in Londonderry, New Hampshire. The school serves 1,386 students in grades 9-12. The student-to-teacher ratio is 11.4:1.
According to EDFacts assessment data, 61% of students meet grade-level proficiency standards in combined math and reading. The school reports a 91% graduation rate.
9% of students qualify for free or reduced-price lunch.
Londonderry Senior High School is part of the Londonderry School District in New Hampshire.
How This School Compares
Londonderry Senior High School has 1,386 students enrolled, making it larger than the average school in Londonderry School District (686 students). Its 61% proficiency rate is 4 percentage points below the district average of 65%. Compared to the New Hampshire state average of 60%, the school performs 1 points higher. With a 11.4:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Londonderry Senior High School has 1,386 students enrolled in grades 9-12. The student-to-teacher ratio is 11.4:1.
According to EDFacts data, 61% of students at Londonderry Senior High School meet grade-level proficiency standards in combined math and reading assessments.
Londonderry Senior High School has a 91% graduation rate, measuring the percentage of students who graduate within four years.
Londonderry Senior High School is part of the Londonderry School District in Londonderry, 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.
this entity is one of the data points covered by this site’s U.S. K-12 school outcomes and enrollment dataset. The detail above comes directly from NCES Common Core of Data and EDFacts; the context that follows situates the headline numbers against the broader distribution across U.S. public schools and districts.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.