Marine Science Magnet High School

Q: Is Marine Science Magnet High School a good school?

Marine Science Magnet High School ranks 35 th of 145 Connecticut high schools. SchoolDigger rates this school 4 stars out of 5.

Summary:

Marine Science Magnet High School is a public magnet high school in Groton, Connecticut that serves 271 students in grades 9-12 with a strong focus on marine science education.

The school consistently outperforms the state and surrounding schools in academic metrics, with 72.3% of 11th-graders proficient or better in SAT/English Language Arts compared to the state average of 54.8%, and 36.9% proficient or better in SAT/Math compared to 29.5% statewide. Marine Science Magnet High School also ranks 35th out of 145 Connecticut high schools and earns a 4-star rating from SchoolDigger, placing it among the top-performing schools in the state. The school's diverse student population, with 66.42% white, 18.45% Hispanic, 3.69% Asian, and 9.23% two or more races, is noteworthy, as is its higher percentage of students receiving free or reduced-price lunch (33.21%) compared to nearby schools.

While Stonington High School and Waterford High School are also high-performing schools in the area, Marine Science Magnet High School stands out for its exceptional academic performance, particularly for male and white students, and its diverse and engaged student body focused on the specialized curriculum in marine science.

Detail:

Public, Magnet 9-12

130 Shennecossett Road
Groton, CT 06340

(860) 434-4800

District: Learn

SchoolDigger Rank:
35^th of 145 Connecticut High Schools

Per Pupil Expenditures: $18,396

Feeder schools for Marine Science Magnet High School:

Elementary:	Canterbury Elementary School
Middle:	Dr. Helen Baldwin Middle School

Student/teacher ratio: 10.6

Number of students: 271

Racial breakdown:

White:

66.4%

Hispanic:

18.5%

Two or more races:

9.2%

Free/discounted lunch recipients: 33.2%

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Performance Trends

Compare Details Marine Science Magnet High School ranks better than 75.9% of high schools in Connecticut. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 76.29. (See more...)

The four-year cohort graduation rate measures the percentage of students at Marine Science Magnet High School who earn a standard high school diploma within four years of starting ninth grade.

Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.

Student Body

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Teachers

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Finance

Compare Details The average total spent per student at Marine Science Magnet High School is $18,396.

Schooldigger 2024 Rankings:

Marine Science Magnet High School:

SchoolDigger ranks Marine Science Magnet High School 35^th of 145 Connecticut public high schools. (See Marine Science Magnet High School in the ranking list.)

High School Test Score Ratings by Student Subgroup:

Female students:

White students:

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Rank History for Marine Science Magnet High School

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Rank History for all students at Marine Science Magnet High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2015	83.68	28^th	196	85.7%
2017	88.50	17^th	140	87.9%
2018	91.52	12^th	121	90.1%
2021	91.21	14^th	200	93.0%
2022	91.57	11^th	139	92.1%
2023	87.31	18^th	142	87.3%
2024	76.29	35^th	145	75.9%

See the entire list of Connecticut High School Rankings!

Rank History for Female students at Marine Science Magnet High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile	SchoolDigger Rating
2021	88.59	19^th	189	89.9%
2024	59.65	50^th	102	51.0%

See the entire list of Best Connecticut High Schools for Female Students!

Rank History for Male students at Marine Science Magnet High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile	SchoolDigger Rating
2021	90.69	13^th	182	92.9%
2022	93.00	1^st	102	99.0%

See the entire list of Best Connecticut High Schools for Male Students!

Rank History for White students at Marine Science Magnet High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2021	87.31	16^th	155	89.7%
2022	91.93	10^th	117	91.5%
2023	89.39	9^th	116	92.2%
2024	66.65	35^th	116	69.8%

See the entire list of Best Connecticut High Schools for White Students!

Data source: test scores: Connecticut Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Data source: Connecticut State Department of Education

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Enrollment information for Marine Science Magnet High School

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Total
2012	77	6	1	18	3	0	5	110
2013	113	8	4	30	4	0	19	178
2014	127	14	6	41	4	0	61	253
2015	164	15	7	52	6	1	27	272
2016	176	9	8	49	4	1	24	271
2017	182	10	6	47	3	1	22	271
2018	196	5	7	37	4	1	21	271
2019	203	6	9	31	2	0	20	271
2020	200	8	11	35	1	0	17	272
2021	197	8	10	37	2	0	17	271
2022	185	6	10	50	1	0	19	271
2023	180	4	10	50	2	0	25	271

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Marine Science Magnet High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
2012	110	8.0	13.7	30
2013	178	17.0	10.4	16.9
2014	253	24.0	10.5	26.1
2015	272	24.0	11.3	32.4
2016	271	26.0	10.4	32.5
2017	271	20.0	13.5	21.4
2018	271	23.8	11.3	17.3
2019	271	22.0	12.3	21.4
2020	272	23.0	11.8	21.3
2021	271	20.6	13.1	27.7
2022	271	21.4	12.6	31.7
2023	271	25.4	10.6	33.2

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Marine Science Magnet High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
2012	110	8.0	13.7	30
2013	178	17.0	10.4	16.9
2014	253	24.0	10.5	26.1
2015	272	24.0	11.3	32.4
2016	271	26.0	10.4	32.5
2017	271	20.0	13.5	21.4
2018	271	23.8	11.3	17.3
2019	271	22.0	12.3	21.4
2020	272	23.0	11.8	21.3
2021	271	20.6	13.1	27.7
2022	271	21.4	12.6	31.7
2023	271	25.4	10.6	33.2

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Finances

Per Pupil Expenditures for Marine Science Magnet High School

Year	Total Expenditures Per Pupil
2018	$16,404
2019	$16,947
2020	$17,507
2021	$15,748
2022	$17,742
2023	$18,396

Data source: Connecticut Department of Education

Pre and Post Pandemic Data

Impact of COVID-19 on Marine Science Magnet High School

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Test Scores

	% proficient Pre-pandemic (2018-2019)	% proficient Post pandemic (2022-2023)	Change (%)
11th Grade English Language Arts (Marine Science Magnet High School)	90.5	71.4	19.1%
11th Grade English Language Arts (Learn)	66.5	62.2	4.3%
11th Grade English Language Arts (Connecticut)	61.6	52.4	9.2%

Student Body

	Number of students Pre-pandemic (2018-2019)	Number of students Post pandemic (2022-2023)	Change (%)
Total Students	271	271
African American	6	4	33.3%
American Indian	2	2
Asian	9	10	11.1%
Hispanic	31	50	61.3%
Pacific Islander	0	0
White	203	180	11.3%
Two or More Races	20	25	25%
% Free/Discounted Lunch Recipients	21.4%	33.2%	11.8%

Schools Near Marine Science Magnet High School

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2024)				Ranking (2023)				NGSS Science (2024)	SAT English Language Arts (2024)	SAT Math (2024)	Per Pupil Expenditures (2023)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	SchoolDigger Rating (2024)	Average Standard Score (2023)	Statewide Rank (2023)	State Percentile (2023)	Rank Change from Previous Year	NGSS Science 11th Grade	SAT English Language Arts 11th Grade	SAT Math 11th Grade	Total
Marine Science Magnet High School	Public, Magnet	9-12	130 Shennecossett Road	Groton	06340	New London County	Learn	No	Yes	No	No	(860) 434-4800	271	25	10.6	33.2%	180 (66.4%)	4 (1.5%)	50 (18.5%)	10 (3.7%)	2 (0.7%)	0 (0.0%)	25 (9.2%)	76.3	35^th of 145 public high schools	75.9%		87.3	18^th of 142 public high schools	87.3%	17	65.1	72.3	36.9	$18,396
New London Visual and Performing Arts Magnet School	Public, Magnet	6-12	36 Waller Street	New London	06320	New London County	New London School District	No	Yes	No	Yes	(860) 449-6800	238	33	7.2	90.3%	37 (15.5%)	57 (23.9%)	96 (40.3%)	2 (0.8%)	3 (1.3%)	0 (0.0%)	43 (18.1%)								(n/a)				$24,286
Ella T. Grasso Technical High School	Public	9-12	189 Fort Hill Rd.	Groton	06340	New London County	Connecticut Technical Education and Career System	No	No	No	No	(860) 448-0220	654	48	13.5	49.7%	273 (41.7%)	40 (6.1%)	248 (37.9%)	5 (0.8%)	8 (1.2%)	1 (0.2%)	71 (10.9%)	38.3	82^nd of 145 public high schools	43.4%		37.2	82^nd of 142 public high schools	42.3%		58.4	36.8	15.5	$26,701
Waterford High School	Public	9-12	20 Rope Ferry Rd.	Waterford	06385	New London County	Waterford School District	No	No	No	Yes	(860) 437-6956	735	65	11.2	28.0%	550 (74.8%)	17 (2.3%)	82 (11.2%)	36 (4.9%)	3 (0.4%)	4 (0.5%)	42 (5.7%)	84.7	21^st of 145 public high schools	85.5%		79.3	29^th of 142 public high schools	79.6%	8	66.7	75.1	49.1	$24,780
New London High School	Public	9-12	20 Chester Street	New London	06320	New London County	New London School District	No	No	No	Yes	(860) 437-6400	532	40	13.4	93.2%	31 (5.8%)	83 (15.6%)	378 (71.1%)	2 (0.4%)	1 (0.2%)	2 (0.4%)	35 (6.6%)								(n/a)	11.5			$23,940
Science and Technology Magnet Pathway for High School Grades	Public, Magnet	9-12	20 Chester Street	New London	06320	New London County	New London School District	No	Yes	No	Yes	(860) 447-6400	194	21	9.3	80.9%	34 (17.5%)	39 (20.1%)	81 (41.8%)	7 (3.6%)	1 (0.5%)	0 (0.0%)	31 (16.0%)								(n/a)				$23,940
Robert E. Fitch High School	Public	9-12	101 Groton Long Point Road	Groton	06340	New London County	Groton School District	No	No	No	No	(860) 449-7200	1,005	96	10.5	42.8%	454 (45.2%)	89 (8.9%)	253 (25.2%)	59 (5.9%)	10 (1.0%)	5 (0.5%)	133 (13.2%)								(n/a)	41.9			$21,767
East Lyme High School	Public	9-12	30 Chesterfield Rd.	East Lyme	06333	New London County	East Lyme School District	No	No	No	No	(860) 739-6946	966	91	10.5	20.0%	736 (76.2%)	14 (1.4%)	74 (7.7%)	85 (8.8%)	4 (0.4%)	2 (0.2%)	50 (5.2%)	80.7	25^th of 145 public high schools	82.8%					(n/a)	61.4	80.3	41.9	$21,600
Ledyard High School	Public	9-12	24 Gallup Hill Rd.	Ledyard	06339	New London County	Ledyard School District	No	No	No	No	(860) 464-9600	743	64	11.6	25.4%	512 (68.9%)	35 (4.7%)	97 (13.1%)	22 (3.0%)	24 (3.2%)	3 (0.4%)	49 (6.6%)	58.2	62^nd of 145 public high schools	57.2%					(n/a)	56.9	59.5	26.6	$18,778
Montville High School	Public	9-12	800 Old Colchester Rd.	Oakdale	06370	New London County	Montville School District	No	No	No	No	(860) 848-9208	499	52	9.5	37.1%	303 (60.7%)	17 (3.4%)	66 (13.2%)	43 (8.6%)	3 (0.6%)	1 (0.2%)	64 (12.8%)								(n/a)	40.2			$22,722

Frequently Asked Questions about Marine Science Magnet High School

How many students attend Marine Science Magnet High School?

In the 2022-23 school year, 271 students attended Marine Science Magnet High School.

Is Marine Science Magnet High School a good school?

Marine Science Magnet High School ranks 35^th of 145 Connecticut high schools. SchoolDigger rates this school 4 stars out of 5.

What is the racial makeup of Marine Science Magnet High School?

Students at Marine Science Magnet High School are 66% White, 18% Hispanic, 9% Two or more races, 4% Asian, 1% African American.

What schools feed into Marine Science Magnet High School?

Marine Science Magnet High School is fed by the following schools:

Elementary : Canterbury Elementary School
Middle : Dr. Helen Baldwin Middle School

What district is Marine Science Magnet High School in?

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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.