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Excellent

#145 of 990 schools in CT

Top 15% in state

Marine Science Magnet High School

High School · Learn

130 Shennecossett Road, Groton, CT 06340

Enrollment

271

Student-Teacher

11.3:1

Score

8.5

Grades

9th – 12th

Data vintage2022-23

How this school compares

Connecticut schools

#145 of 990

In Groton

#1 of 7

public schools

In district

#1 of 4

Learn

Academic growth

9.4 / 10

Excellent

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Marine Science Magnet High School

8.5/10

High School in Groton · grades 9th – 12th. Start here, then compare fit against nearby and district options.

Thames River Magnet School

7.6/10

0.3 mi away. Use as a geographic alternative in the same move search.

Sacred Heart School

6.4/10

0.8 mi away. Use as a geographic alternative in the same move search.

About Marine Science Magnet High School

Marine Science Magnet High School is a public high school in Groton, CT, part of Learn. Marine Science Magnet High School serves approximately 271 students, and covers grades 9th-12th, and has a 11.3:1 student-teacher ratio. Marine Science Magnet High School has a current MySchoolScout rating of 8.5 out of 10 and ranks #145 of 990 schools in CT.

Structured state assessment records for Marine Science Magnet High School show 63% math proficiency (multi-year average, 2011-2022) and 87% reading/ELA proficiency (multi-year average, 2011-2022).

How it comparesOn par with district
  • This school 8.5 · Excellent
  • District avg 8.3
  • CT avg 6.1

Score Breakdown

Full Profile · 4/4 metrics
Student Progress9.4Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data11
Annual Change-1.25 pts/yr
Data Period2011–2022
TrendDeclining
Academics9.2Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency54.5% (2022 EdFacts)
Reading/ELA Proficiency84.5% (2022 EdFacts)
Overall Proficiency70% (2022 EdFacts, Math+ELA)
Expected (poverty-adj.)55% (model expectation from 2022 EdFacts)
vs. Expected+14.8 pts
Adjusted Percentile87th
College Readiness8.5Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate95%+
AP Participation36.2%
IB ProgramNo
Resources & Environment6.7Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio11.3:1
Per-Pupil Spending$27,966
Chronic Absenteeism25.8%

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: 55%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

32.8%

Students qualifying for federal meal assistance

Test Scores CT EDFACTS (2021-22)

Math Proficiency 63.2% (multi-year average, 2011-2022)
School
State
N/A
ELA Proficiency 87.3% (multi-year average, 2011-2022)
School
State
N/A

Based on 22 test records from CT state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2011
Math
90%
ELA
90%
2012
Math
92%
ELA
92%
2014
Math
42%
ELA
87%
2015
Math
52%
ELA
92%
2016
Math
44.5%
ELA
74.5%
2017
Math
62%
ELA
92%
2018
Math
62%
ELA
92%
2019
Math
62%
ELA
92%
2020*
Math
67%
ELA
82%
2021*
Math
67%
ELA
82%
2022
Math
54.5%
ELA
84.5%

* 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: 9.4/10.

How Marine Science Magnet High School Compares

See how Marine Science Magnet High School performs across key quality dimensions compared to state benchmarks.

Overall Score
8.5/10
86th percentile in CT
Academic
9.2/10
Excellent
Growth
9.4/10
Excellent
Environment
6.7/10
Average
AP Courses
3
State avg: 3
Advanced STEM
5/5
Subjects offered

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
33%
Teaching Staff
11:1 student-teacher ratio
24 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
25.8%

Programs & Offerings

AP/IB Programs3 AP courses offered
36.2% participation·State avg: 3 AP courses·CRDC 2021-22
Advanced STEM Courses5 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

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 7.0/10, 2.3 miles away, in nearby New London), a more accessible option. 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 mi
School Distance Rating
Thames River Magnet School Groton 0.3 mi 7.6
SACRED HEART SCHOOL Groton 0.8 mi 6.4
Catherine Kolnaski Magnet School Groton 0.9 mi 8.2
Nathan Hale Arts Magnet School New London 1.8 mi 4.5
Interdistrict School For Arts And Communication New London 1.9 mi 3.3
Regional Multicultural Magnet School New London 2.1 mi 4.7
HIGH ROAD SCHOOL OF NEW LONDON MD/HIGH AT SHILOH New London 2.0 mi
ST JOSEPH SCHOOL New London 1.9 mi 6.3
C.B. Jennings International Elementary Magnet New London 2.2 mi 5.1
Bennie Dover Jackson Middle School New London 2.3 mi 3.8
New London Visual and Performing Arts Magnet School New London 2.3 mi 7.0
Science and Technology Magnet Pathway for Middle Grades New London 2.3 mi 4.9
Winthrop STEM Elementary Magnet School New London 2.6 mi 8.8
Charles Barnum Magnet School Groton 3.3 mi 6.5
THE WILLIAMS SCHOOL New London 3.2 mi 7.0
New London High School New London 3.0 mi 3.6
Science and Technology Magnet Pathway for High School Grades New London 3.0 mi 8.5
Ella T. Grasso Technical High School Groton 2.9 mi 6.4
Clark Lane Middle School Waterford 3.0 mi 7.0
Groton Middle School Groton 3.0 mi 7.9

Neighborhood 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

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Science and Technology Magnet Pathway for High School Grades New London, CT 8.5
THE CHESHIRE ACADEMY Cheshire, CT 8.2
Center for Global Studies Norwalk, CT 8.9
Connecticut IB Academy East Hartford, CT 9.0
Westbrook High School Westbrook, CT 8.0
Aerospace/Hydrospace Engineering and Physical Sciences Magne Bridgeport, CT 7.6

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 ranks #145 of 990 schools in CT.

What is Marine Science Magnet High School's MySchoolScout rating?

Marine Science Magnet High School has a current MySchoolScout rating of 8.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Marine Science Magnet High School?

Based on loaded state assessment records, Marine Science Magnet High School has 63% math proficiency (multi-year average, 2011-2022) and 87% reading/ELA proficiency (multi-year average, 2011-2022).

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.

11 schools nearby View map →

Neighborhood Context

Walk Score
41 Car-Dependent
Bike Score
46 Somewhat Bikeable

Powered by Walk Score

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
Chronic Absenteeism (SY 2022-23)
25.8%
4-Year Graduation
95%+

District

Learn
District Enrollment
1,396
Schools in District
4
Per-Pupil Spending
$27,966
District Rank
#1 of 4

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