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Londonderry Senior High School

Public Grades 9-12
18th
SchoolDigger Rank ?
of 89 New Hampshire High Schools
Better than 80% of New Hampshire high schools
Summary

Londonderry Senior High School is a public school serving grades 9–12 in the suburban town of Londonderry, New Hampshire, with about 1,289 students. It is part of the Londonderry School District, which ranks around the 69th percentile statewide. The high school ranks 18th out of 89 New Hampshire high schools, placing it in the state’s upper tier and ahead of most nearby comprehensive high schools.

The school’s strongest academic areas are reading and science. Reading proficiency is 70%, 15 points above the state average, while science proficiency is 54%, 16 points above the state. Science has improved especially sharply, rising from 33% in 2023–24 to more than 50% in each of the two most recent years. Mathematics is the clearest area for improvement: 39% of students are proficient, below both the state average of 44% and the district result of 55%. This creates a substantial gap between the school’s reading and math outcomes. The school also reports a 0% dropout rate and strong recent performance for students receiving special education services.

Londonderry is a strong local option, although Windham High School is the area’s clear leader, ranking fourth statewide with higher math, reading, science, and graduation results. Londonderry generally outperforms Merrimack High School, Campbell High School, Alvirne High School, and Pinkerton Academy in academic proficiency, particularly science. Its 2024–25 graduation rate of 87.8% remains slightly above the state average, but it fell noticeably from prior years and is worth monitoring. Overall, the school combines strong literacy and science results, effective student retention, and a favorable statewide ranking, with mathematics and graduation trends as the main issues to watch.

1,289
Students ?
11.9
Student/teacher ratio ?
$17,631
Per pupil spending ?
10.9%
Free/discounted lunch ?
 295 Mammoth Rd.
       Londonderry, NH  03053-3095

(603) 432-6941

District: Londonderry School District


Feeder schools for Londonderry Senior High School:

Elementary:    Matthew Thornton Elementary School
    Moose Hill School
    North Londonderry Elementary School
    South Londonderry Elementary School
Middle:    Londonderry Middle School
Racial breakdown:

White:
89.0%
Hispanic:
4.8%
Two or more races:
3.4%
more
 See top rated New Hampshire high schools

 Compare Londonderry Senior High School to nearby high schools!
At a glance
Ranking trend: Holding steady — 83rd percentile in 2016 → 80th in 2026
Strengths
Test scores above the New Hampshire average (54% vs 46% meeting standards)
Ranks in the top 20% of New Hampshire high schools
Small classes — about 12 students per teacher
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school54%
District avg54%
New Hampshire avg46%
18th of 89
New Hampshire public high schools ?
Top 20%▼ down 4 pts since 2016
From top 17% (2016) to top 20% (2026)
See the entire ranking list of New Hampshire High Schools →
SchoolDigger rating ?
52nd of 166Londonderry School District among New Hampshire districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankNew Hampshire percentileRating
202677.418 of 8979.8%★★★★☆
202575.820 of 8676.7%★★★★☆
202457.034 of 8760.9%★★★☆☆
202359.927 of 8568.2%★★★★☆
202259.124 of 8571.8%★★★★☆
202159.229 of 8465.5%★★★☆☆
201971.819 of 7173.2%★★★★☆
201869.620 of 8175.3%★★★★☆
201758.037 of 8254.9%★★★☆☆
201677.914 of 8483.3%★★★★☆
201570.720 of 7774.0%★★★★☆
201439.561 of 8528.2%★★☆☆☆
201344.451 of 8338.6%★★☆☆☆
201244.252 of 8337.3%★★☆☆☆
201164.527 of 8166.7%★★★☆☆
201069.320 of 8175.3%★★★★☆
200978.711 of 7986.1%★★★★☆

Asian

YearAvg scoreStatewide rankNew Hampshire percentileRating
201865.94 of 1163.6%★★★★☆

Female

YearAvg scoreStatewide rankNew Hampshire percentileRating
202681.312 of 8085.0%★★★★☆
202569.421 of 8073.8%★★★★☆
202449.040 of 8150.6%★★★☆☆
202358.924 of 7869.2%★★★★☆
202257.725 of 7968.4%★★★☆☆
202164.413 of 5978.0%★★★★☆
201969.316 of 6374.6%★★★★☆
201872.413 of 6078.3%★★★★☆

Hispanic

YearAvg scoreStatewide rankNew Hampshire percentileRating
202657.77 of 1758.8%★★★☆☆
202570.14 of 1471.4%★★★★☆
202481.82 of 2090.0%★★★★★
202250.44 of 955.6%★★★☆☆

Male

YearAvg scoreStatewide rankNew Hampshire percentileRating
202668.622 of 8172.8%★★★★☆
202578.016 of 7879.5%★★★★☆
202462.426 of 8268.3%★★★★☆
202357.227 of 7865.4%★★★☆☆
202259.427 of 7865.4%★★★☆☆
202154.721 of 6065.0%★★★☆☆
201974.411 of 6182.0%★★★★☆
201863.513 of 6178.7%★★★★☆

Multi-racial

YearAvg scoreStatewide rankNew Hampshire percentileRating
202450.96 of 1040.0%★★☆☆☆
202346.96 of 1040.0%★★☆☆☆

Special Education

YearAvg scoreStatewide rankNew Hampshire percentileRating
202679.86 of 3381.8%★★★★☆
202574.98 of 3577.1%★★★★☆
202447.815 of 3253.1%★★★☆☆
202264.29 of 3271.9%★★★★☆
202137.910 of 1428.6%★★☆☆☆
201955.710 of 3167.7%★★★★☆
201839.614 of 2133.3%★★☆☆☆

White

YearAvg scoreStatewide rankNew Hampshire percentileRating
202677.319 of 8878.4%★★★★☆
202574.618 of 8679.1%★★★★☆
202454.934 of 8760.9%★★★☆☆
202357.329 of 8365.1%★★★☆☆
202256.428 of 8567.1%★★★☆☆
202158.221 of 6768.7%★★★★☆
201971.515 of 6677.3%★★★★☆
201866.115 of 6476.6%★★★★☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Female (2026)85th percentile+5 vs school
Special Education (2026)82nd percentile~ school
White (2026)78th percentile~ school
Male (2026)73rd percentile-7 vs school
Asian (2018)64th percentile-12 vs school
Hispanic (2026)59th percentile-21 vs school
Multi-racial (2024)40th percentile-21 vs school
By subject vs New Hampshire (2025-2026) ?
Reading70%+15 vs state
Science54%+16 vs state
Mathematics39%-5 vs state

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Frequently Asked Questions about Londonderry Senior High School

In the 2024-25 school year, 1,289 students attended Londonderry Senior High School.

Students at Londonderry Senior High School are 89% White, 5% Hispanic, 3% Two or more races, 1% Asian, 1% African American.

Londonderry Senior High School ranks 18th of 89 New Hampshire high schools. SchoolDigger rates this school 4 stars out of 5.

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Latest New Hampshire data All new data »
2025–26 NH SAS & SAT test scoresSep 7, 2026
2024–25 dropout rates & graduation ratesNov 12, 2025
2024–25 NH SAS & SAT test scoresSep 6, 2025
2015–16 through 2023–24 dropout rates & graduation ratesJul 30, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the New Hampshire Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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