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Stonington High School

Public Grades 9-12
12th
SchoolDigger Rank ?
of 135 Connecticut High Schools
Better than 91% of Connecticut high schools
Summary

Stonington High School is a midsize public high school in Pawcatuck, CT, serving 543 students in grades 9–12 and ranking as one of the top schools in eastern Connecticut. For parents, the big picture is simple: this is an elite academic performer with a 5-star rating and a #12 ranking out of 133 Connecticut high schools in the 2025–2026 school year. It leads nearby schools like Waterford High School, Ledyard High School, and Robert E. Fitch High School in math, science, and reading proficiency. With an 11.3:1 student-teacher ratio and a 95.3% graduation rate, the school delivers strong results for a comprehensive high school serving a general population.

Stonington’s signature strength is science: 79.5% of 11th graders scored proficient on the NGSS science test, outpacing even the specialized Marine Science Magnet High School (77.4%) and sitting 29 points above the state average. Math proficiency jumped 15 points in one year to 57.4%—well above the state’s 31.3%—while ELA proficiency sits at 77%, also far above average. The school has improved its state rank dramatically over the past decade, from the 55th percentile in 2014–2015 to the 91st percentile today, and it has earned 4 or 5 stars consistently. Subgroup data, including strong results for special education and low-income students in recent years, suggest the school serves a range of learners effectively. That said, the school’s poverty rate is low-moderate (24.5% free/reduced lunch), and its per-student spending of roughly $19,200 is actually below some peers like Waterford, yet it produces better academic outcomes—pointing to efficient resource use.

The main concern for families is chronic absenteeism. About 20.8% of Stonington students missed significant school in 2025–2026, higher than the state average (16.4%) and well above its own Stonington School District rate (13.4%). Nearby schools like Wheeler High School (15.7%) and Waterford High School (17.1%) have lower rates. Even with this red flag, Stonington’s high test scores and graduation rate indicate that most students are thriving. If attendance improves and recent math gains hold, this school is well positioned to remain among Connecticut’s elite public high schools for years to come.

543
Students ?
11.3
Student/teacher ratio ?
$26,628
Per pupil spending ?
24.5%
Free/reduced lunch eligible (2024-25) ?
 176 South Broad St.
       Pawcatuck, CT  06379

(860) 599-5781

District: Stonington School District


Feeder schools for Stonington High School:

Elementary:    Deans Mill School
    West Vine Street School
Middle:    Stonington Middle School
Racial breakdown:

White:
83.6%
Two or more races:
7.4%
Hispanic:
6.4%
more
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 Compare Stonington High School to nearby high schools!
At a glance
▲ Ranking trend: Improving — 55th percentile in 2015 → 91st in 2026
Strengths
✓Test scores above the Connecticut average (71% vs 46% meeting standards)
✓Ranks in the top 9% of Connecticut high schools
✓95% graduate in 4 years — above the Connecticut average (91%)
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school71%
District avg70%
Connecticut avg46%
12th of 135
Connecticut public high schools ?
Top 9%▲ up 13 pts since 2017
From top 22% (2017) to top 9% (2026)
See the entire ranking list of Connecticut High Schools →
★★★★★
SchoolDigger rating ?
47th of 153Stonington School District among Connecticut 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 rankConnecticut percentileRating
202689.312 of 13591.1%★★★★★
202585.921 of 14185.1%★★★★☆
202489.912 of 14591.7%★★★★★
202385.921 of 14285.2%★★★★☆
202281.327 of 13980.6%★★★★☆
202182.540 of 20080.0%★★★★☆
201978.934 of 12171.9%★★★★☆
201870.249 of 12159.5%★★★☆☆
201781.031 of 14077.9%★★★★☆
201557.988 of 19655.1%★★★☆☆
201372.361 of 19368.4%★★★☆☆
201275.150 of 18873.4%★★★★☆
201169.585 of 18955.0%★★★☆☆
201066.782 of 18655.9%★★★☆☆
200967.864 of 17663.6%★★★☆☆
200865.484 of 17652.3%★★★☆☆
200765.887 of 17650.6%★★★☆☆

Female

YearAvg scoreStatewide rankConnecticut percentileRating
202679.731 of 11172.1%★★★★☆
202586.714 of 10486.5%★★★★☆
202487.215 of 10285.3%★★★★☆
202388.112 of 10388.3%★★★★☆
202276.531 of 10670.8%★★★★☆
202179.740 of 18978.8%★★★★☆
201966.441 of 8451.2%★★★☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankConnecticut percentileRating
202188.017 of 15589.0%★★★★☆

Male

YearAvg scoreStatewide rankConnecticut percentileRating
202686.213 of 11588.7%★★★★☆
202586.815 of 11186.5%★★★★☆
202484.019 of 10081.0%★★★★☆
202272.939 of 10261.8%★★★☆☆
202181.634 of 18281.3%★★★★☆
201972.138 of 8052.5%★★★☆☆

Special Education

YearAvg scoreStatewide rankConnecticut percentileRating
202183.422 of 17587.4%★★★★☆

White

YearAvg scoreStatewide rankConnecticut percentileRating
202685.912 of 10788.8%★★★★☆
202571.933 of 11671.6%★★★★☆
202486.515 of 11687.1%★★★★☆
202375.025 of 11678.4%★★★★☆
202274.229 of 11775.2%★★★★☆
202173.941 of 15573.5%★★★★☆
201959.848 of 11357.5%★★★☆☆
201856.349 of 10553.3%★★★☆☆
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)
Low Socio Economic Status (2021)89th percentile+9 vs school
White (2026)89th percentile~ school
Male (2026)89th percentile~ school
Special Education (2021)87th percentile+7 vs school
Female (2026)72nd percentile-19 vs school
By subject vs Connecticut (2025-2026) ?
Science80%+29 vs state
English Language Arts77%+22 vs state
Math57%+26 vs state

★
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Frequently Asked Questions about Stonington High School

Students at Stonington High School are 84% White, 7% Two or more races, 6% Hispanic, 1% Asian.

In the 2024-25 school year, 543 students attended Stonington High School.

Stonington High School is fed by the following schools:

Elementary : Deans Mill School
Elementary : West Vine Street School
Middle : Stonington Middle School

Yes. Stonington High School ranks in the top 8.9% of Connecticut high schools.

Rate Stonington High School!



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CTConnecticut High School Rankings

CTConnecticut District Rankings

Schools in Pawcatuck, CT

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Latest Connecticut data All new data »
2017–18 through 2025–26 immunization rates (updated)NewOct 19, 2026
2024–25 through 2025–26 attendance data & graduation ratesAug 31, 2026
2025–26 NGSS, SAT & SBAC test scoresAug 31, 2026
2024–25 school spending dataApr 2, 2026


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