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Schools›Connecticut›Groton
SCHOOL COMMUNITY·LEARN·NCES 090345001606

Marine Science Magnet High School

130 Shennecossett Road, Groton, CT 06340 · (860) 434-4800 · Southeastern Connecticut Planning Region
GRADES 09–12HIGH22-SUBURBREGULAR SCHOOL274 STUDENTS
·
allk12 Grade
Not graded

This school has no state test results for 2023-24 or 2024-25 to grade, which is common for schools that end before third grade. How grades work

Enrollment
274
High
DISTRICT 183 · STATE 788
Student : Teacher
10.5:1
26 FTE teachers
DISTRICT 16.8:1 · STATE 12.3:1
Free / Reduced Lunch
31%
84 students
DISTRICT 54% · STATE 44%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 97327%
Grade 107126%
Grade 116825%
Grade 126223%
Student demographics
57%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 69% · STATE 67% · US 70%
White
16661%
DISTRICT 34% · STATE 46% · US 43%
Hispanic
5219%
DISTRICT 40% · STATE 32% · US 30%
Black
41%
DISTRICT 8% · STATE 12% · US 15%
Asian
155%
DISTRICT 3% · STATE 5% · US 6%
Two+
3412%
DISTRICT 14% · STATE 5% · US 5%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
14252%
Female
12947%

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Schools most like Marine Science Magnet High School

SchoolStudentsLow-incomeProficient
Marine Science Magnet High School this school27430.7%N/A
Portland High School
Portland
32331.6%N/A
Old Saybrook Senior High School
Old Saybrook
33822.5%N/A
Bolton High School
Bolton
21227.4%N/A
Cromwell High School
Cromwell
51529.9%N/A
East Granby High School
East Granby
24926.1%N/A
Matched among Connecticut high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Marine Science Magnet High School ranks

Among high schools
MeasureThis schoolIn ConnecticutIn Southeastern Connecticut Planning Region
Enrollment
ranked largest first
274#177 of 201#17 of 22
Students per teacher
ranked fewest first
10.5:1#50 of 188#7 of 18
Diversity index
ranked most diverse first
56.9%#78 of 188#6 of 18
Free and reduced lunch
ranked highest share first
30.7%#125 of 196#13 of 20
Enrollment change since 2017-18
ranked fastest growth first
+1.1%#58 of 63N/A
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
274
+3 (+1%) vs 2020
Student : Teacher
10.5:1
was 13.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252742610.5:131% (84)
2023-242712411.3:133% (89)
2022-2327125.510.7:133% (90)
2020-212712013.6:128% (75)
2017-1827123.911.4:117% (47)
2015-162712510.8:132% (88)
Source: NCES Common Core of Data. Rows are the federal collections on file for Marine Science Magnet High School.

Since 2017-18: students up 1% (271 to 274); teachers up 9% (23.9 to 26).

About Marine Science Magnet High School

Marine Science Magnet High School is a very small high school in Groton, Connecticut. There are 274 students enrolled, covering grades 9 through 12. The school is 65% below the average for high schools in Connecticut.

Learn runs 4 schools with a combined 1,295 students. Marine Science Magnet High School is one of them.

Federal enrollment data show Marine Science Magnet High School is 61% White. The remaining shares are 19% Hispanic, 12% multiracial, and 5% Asian. Southeastern Connecticut Planning Region as a whole is about 74% White, so the school's share is lower. A diversity index of 57% means there is a 57% chance two randomly chosen students at Marine Science Magnet High School are from different groups.

The school lists 26 full-time-equivalent teachers and a student-to-teacher ratio of 10.5:1. Compared with the 12.3:1 average for high schools in Connecticut, this school's ratio is lower. Free or reduced-price lunch covers 31% of the student body. The average for public schools in Southeastern Connecticut Planning Region is 50%.

In the wider Southeastern Connecticut Planning Region area, median household income comes to about $86,586, roughly 36% of adults have a four-year degree or more, and about 8% of residents live below the federal poverty line. Southeastern Connecticut Planning Region's 88 public schools enroll about 36,605 students and include Marine Science Magnet High School.

Thames River Magnet School is the nearest public school to Marine Science Magnet High School, about 0.3 miles away. Within five miles of Marine Science Magnet High School, there are at least 8 other public schools.

Locale: Suburb: Mid-size. In NCES terms, the school is in a suburban area outside a principal city, within an urbanized area with a population between 100,000 and 250,000.

Enrollment at Marine Science Magnet High School was 271 in 2020-21 and 274 in 2024-25, a change of less than 3%. The ratio was 13.6:1 in 2020-21 and 10.5:1 in 2024-25.

This page is a place to ask questions and share updates about fundraisers, report cards, and school supplies at Marine Science Magnet High School. Parents, students, alumni, and staff are welcome to post.

Southeastern Connecticut Planning Region at a glance

View full county profile
Population
279,971
Census ACS
Median income
$86,586
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
88
36,605 students

Quick facts

School name
Marine Science Magnet High School
District
Learn
Address
130 Shennecossett Road, Groton, CT 06340
Phone
(860) 434-4800
County
Southeastern Connecticut Planning Region
Level
High
Grade range
09–12
Total enrollment
274
Teachers (FTE)
26
Student–teacher ratio
10.5:1
Free and reduced lunch
84 (31%)
Locale
22-Suburb: Mid-size
NCES ID
090345001606
Charter school
No
Virtual school
No

Related schools

Other schools in Learn
Other schools in Groton
Nearby schools

Frequently asked questions

About Marine Science Magnet High School
How large is Marine Science Magnet High School?
Marine Science Magnet High School enrolls approximately 274 students in grades 09-12.
What age range does Marine Science Magnet High School serve?
Marine Science Magnet High School serves students from grade 09 through grade 12.
How many students per teacher at Marine Science Magnet High School?
Approximately 10.5:1 students per teacher at Marine Science Magnet High School.
How diverse is Marine Science Magnet High School?
Marine Science Magnet High School reports a student body of 61% White, 19% Hispanic, 1% Black, 5% Asian, 12% Two or more.
Who oversees Marine Science Magnet High School?
Marine Science Magnet High School is overseen by Learn in Southeastern Connecticut Planning Region.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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