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Three Rivers School

Public Grades 5-8
55th
SchoolDigger Rank ?
of 138 New Hampshire Middle Schools
Better than 60% of New Hampshire middle schools
Summary

Three Rivers School is a small public middle school in Pembroke, New Hampshire, serving 289 students in grades 5–8 and offering a more personal setting than many larger nearby schools. The school ranks 55th among 138 New Hampshire middle schools, placing it at the 60th percentile with a three-star rating. Its 9.9-to-1 student-teacher ratio is relatively favorable, although this measure does not directly indicate class size. The school’s performance is stronger than the overall ranking of the Pembroke School District, which ranks at the 40th statewide percentile.

Reading is Three Rivers School’s clearest academic strength: 61% of students are proficient, compared with 55% statewide. The school exceeds the state reading rate in every tested grade, especially sixth and eighth grade. Science is another positive area, with 42% proficiency versus 38% statewide and 30% in the district. Mathematics is the main area for improvement, at 40% compared with 44% statewide. The biggest concern is sixth-grade math, where proficiency is 31%, followed by 38% in seventh grade; fifth- and eighth-grade results are closer to or above the state rate. Math and science have improved considerably since 2023–24, while reading has risen from 51% to 61%.

Locally, Three Rivers School is a solid middle performer. It is close to Mountain View Middle School in reading and science, outperforms Merrimack Valley Middle School in reading and science, and exceeds Rundlett Middle School across all three subjects. It trails higher-performing Bow Memorial School and David R. Cawley Middle School, mainly in math. It performs substantially better than schools in the Manchester School District. A notable strength is special education effectiveness: the school ranked seventh statewide among 48 schools in 2025–26. Overall, families can expect strong literacy and science results, supportive subgroup performance, and a clear opportunity to strengthen middle-grade math.

289
Students ?
9.9
Student/teacher ratio ?
$16,396
Per pupil spending ?
19.7%
Free/discounted lunch ?
 243 Academy Rd.
       Pembroke, NH  03275-1343

(603) 485-5187

District: Pembroke School District


Students who attend Three Rivers School usually attend:

High:    Pembroke Academy

Feeder schools for Three Rivers School:

Elementary:    Pembroke Hill School
Racial breakdown:

White:
88.2%
Two or more races:
6.2%
Hispanic:
4.2%
more
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 Compare Three Rivers School to nearby middle schools!
At a glance
▲ Ranking trend: Improving — 47th percentile in 2016 → 60th in 2026
Strengths
✓Ranking is trending up — up 13 percentile points since 2016
✓Above the New Hampshire median (60th percentile)
✓Small classes — about 10 students per teacher
Students meeting standards (2025-2026) ?
This school48%
District avg42%
New Hampshire avg46%
55th of 138
New Hampshire public middle schools ?
Top 40%▲ up 13 pts since 2016
From bottom 47% (2016) to top 40% (2026)
See the entire ranking list of New Hampshire Middle Schools →
★★★★★
SchoolDigger rating ?
99th of 166Pembroke 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
202655.055 of 13860.1%★★★☆☆
202554.953 of 13259.8%★★★☆☆
202446.961 of 13053.1%★★★☆☆
202352.559 of 13456.0%★★★☆☆
202255.649 of 13062.3%★★★☆☆
202141.571 of 12543.2%★★☆☆☆
201956.351 of 12860.2%★★★☆☆
201847.975 of 13142.7%★★☆☆☆
201746.573 of 12541.6%★★☆☆☆
201647.971 of 13447.0%★★☆☆☆
201546.158 of 10745.8%★★☆☆☆
201439.987 of 13234.1%★★☆☆☆
201342.186 of 13134.4%★★☆☆☆
201229.4102 of 13122.1%★☆☆☆☆
201125.2103 of 12819.5%★☆☆☆☆
201019.9108 of 12715.0%★☆☆☆☆
200938.793 of 12726.8%★☆☆☆☆
200826.2102 of 12920.9%★☆☆☆☆
200723.9100 of 12520.0%★☆☆☆☆
200626.498 of 12622.2%★☆☆☆☆

Female

YearAvg scoreStatewide rankNew Hampshire percentileRating
202656.946 of 11359.3%★★★☆☆
202549.458 of 11248.2%★★☆☆☆
202444.858 of 11047.3%★★☆☆☆
202342.567 of 11441.2%★★☆☆☆
202255.345 of 11560.9%★★★☆☆
202135.771 of 11337.2%★★☆☆☆
201967.528 of 11475.4%★★★★☆
201852.062 of 11646.6%★★☆☆☆

Male

YearAvg scoreStatewide rankNew Hampshire percentileRating
202651.152 of 12157.0%★★★☆☆
202557.844 of 11662.1%★★★☆☆
202450.951 of 11354.9%★★★☆☆
202366.129 of 11775.2%★★★★☆
202258.038 of 11767.5%★★★☆☆
202148.751 of 11656.0%★★★☆☆
201945.758 of 11348.7%★★★☆☆
201838.573 of 11436.0%★★☆☆☆

Special Education

YearAvg scoreStatewide rankNew Hampshire percentileRating
202680.77 of 4885.4%★★★★☆
202578.54 of 5192.2%★★★★★
202453.719 of 4860.4%★★★☆☆
202360.416 of 5269.2%★★★★☆
202232.141 of 4712.8%★☆☆☆☆
201964.29 of 4881.3%★★★★☆

White

YearAvg scoreStatewide rankNew Hampshire percentileRating
202653.658 of 13657.4%★★★☆☆
202557.549 of 13162.6%★★★☆☆
202445.763 of 12850.8%★★★☆☆
202354.257 of 13256.8%★★★☆☆
202256.647 of 12963.6%★★★☆☆
202143.967 of 12345.5%★★☆☆☆
201957.347 of 12662.7%★★★☆☆
201848.569 of 12946.5%★★☆☆☆
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)
Special Education (2026)85th percentile+25 vs school
Female (2026)59th percentile~ school
White (2026)57th percentile-3 vs school
Male (2026)57th percentile-3 vs school
By subject vs New Hampshire (2025-2026) ?
Reading61%+6 vs state
Science42%+4 vs state
Mathematics40%-4 vs state

2.0
1 rating · 1 written review
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What people are saying
by a parent
Friday, April 2, 2010

Open Quote Not family friendly, have a hard time being welcomed as an involved parent. Expect oo much maturity, independence and self-reliance from 5th and 6th graders. Close Quote





Schools Near Three Rivers School

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Frequently Asked Questions about Three Rivers School

Students who attend Three Rivers School usually go on to attend Pembroke Academy

In the 2024-25 school year, 289 students attended Three Rivers School.

Students at Three Rivers School are 88% White, 6% Two or more races, 4% Hispanic.

Three Rivers School ranks 55th of 138 New Hampshire middle schools. SchoolDigger rates this school 3 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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