Excellent
#110 of 990 schools in CT
Top 11% in state
Marine Science Magnet High School
High School · Learn
130 Shennecossett Road, Groton, CT 06340
Enrollment
271
Student-Teacher
11.3:1
Score
8.3
Grades
9th – 12th
Enrollment
271
Student-Teacher
11.3:1
Score
8.3
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Groton
#3 of 7
public schools
Connecticut high schools
#19 of 196
In district
#1 of 4
Learn
Academic performance
9.2 / 10
Exceptional
About Marine Science Magnet High School
Marine Science Magnet High School is a public high school in Groton, CT, part of the Learn. The school serves approximately 271 students in grades 9th – 12th with a student-teacher ratio of 11.3:1. It holds a MySchoolScout rating of 8.3/10, placing it in the 89th percentile among CT schools — an above average rating overall.
Students demonstrate 61% proficiency in math and 86% in reading/language arts. The school scores particularly well in school environment (8.2/10). Located in a neighborhood with a median household income of $77,768, where 38% of adults hold a bachelor's degree or higher.
The school is situated in a midsize suburban setting.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Marine Science Magnet High School — Students at Marine Science Magnet High School score 70% proficient, which is above what's typical for similar communities (expected: 54%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
32.8%
Students qualifying for federal meal assistance
Test Scores CT EDFACTS (2021-22)
Based on 6 test records from CT state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.5/10.
How Marine Science Magnet High School Compares
See how Marine Science Magnet High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 62% (2019) to 54.5% (2022). Reading/ELA proficiency has declined from 92% (2019) to 84.5% (2022).
Location
130 Shennecossett Road, Groton, CT 06340
Nearby Alternatives
Families considering Marine Science Magnet High School may also want to explore other high schools in the area. Science and Technology Magnet Pathway for High School Grades (rated 8.5/10, 3.0 miles away, in nearby New London), with a very similar rating. Another option is New London Visual and Performing Arts Magnet School (rated 7.5/10, 2.3 miles away, in nearby New London), with a comparable rating. Additionally, THE WILLIAMS SCHOOL (rated 7.0/10, 3.2 miles away, in nearby New London), a more accessible option. For more schools in Groton, see our Groton schools guide .
Nearby Schools
20 within 3.0 miNeighborhood Census ACS (2019-2023)
Census data for ZIP 06340 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$77,768
Median Home Value
$275,500
Median Rent
$1,492/mo
Population
29,833
College Educated
38.1%
Homeownership
42.2%
Avg Commute
18.4 min
Poverty Rate
12.2%
Median Age
33.2
Community Profile
The community surrounding Marine Science Magnet High School has a median household income of $77,768. It is an area where 38% of adults hold a bachelor's degree or higher. The median home value in the area is $275,500, with a median rent of $1,492/month. The area has a poverty rate of 12.2%. Residents enjoy a short average commute of 18 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| THE CHESHIRE ACADEMY Cheshire, CT | 8.2 |
| Wamogo Regional High School Litchfield, CT | 8.2 |
| Science and Technology Magnet Pathway for High School Grades New London, CT | 8.5 |
| Aerospace/Hydrospace Engineering and Physical Sciences Magne Bridgeport, CT | 8.1 |
| Old Saybrook Senior High School Old Saybrook, CT | 7.9 |
| Bolton High School Bolton, CT | 7.7 |
Frequently Asked Questions
Common questions about Marine Science Magnet High School
What grades does Marine Science Magnet High School serve?
Marine Science Magnet High School serves students in grades 9th through 12th.
How many students attend Marine Science Magnet High School?
Marine Science Magnet High School has an enrollment of approximately 271 students.
What is the student-teacher ratio at Marine Science Magnet High School?
The student-teacher ratio at Marine Science Magnet High School is 11.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Marine Science Magnet High School rank in CT?
Marine Science Magnet High School is ranked #110 out of 990 schools in CT.
What is Marine Science Magnet High School's MySchoolScout rating?
Marine Science Magnet High School has a composite rating of 8.3 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Marine Science Magnet High School?
Based on the most recent state assessment data, Marine Science Magnet High School has 61.2% math proficiency and 86.2% reading/ELA proficiency.
Is Marine Science Magnet High School a charter school?
No, Marine Science Magnet High School is not a charter school. It is a traditional public school operated by the local school district.
Is Marine Science Magnet High School a Title I school?
No, Marine Science Magnet High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Marine Science Magnet High School?
32.8% of students at Marine Science Magnet High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
Powered by 
FBI UCR 2024. City-level (Groton). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 271
- Student-Teacher Ratio
- 11.3:1
- Teachers (FTE)
- 24
- Free/Reduced Lunch
- 32.8%
- Type
- regular
- Setting
- Midsize Suburb
- County
- Connecticut Planning Region 8
- Phone
- (860) 434-4800
- Data Year
- 2023–2024
Resources & Links
District
Learn- District Enrollment
- 1,396
- Schools in District
- 4
- Per-Pupil Spending
- $27,966
- District Rank
- #1 of 4
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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