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Best High Schools in Groton, CT

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At a glance

Schools

1,900

Students

Districts

Top rankedRobert E. Fitch High School57^th of 135 Connecticut high schools

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Biggest riser

Ella T. Grasso Technical High School up 7 spots statewide this year

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Newly ranked this year

Robert E. Fitch High School

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Summary:

Groton, Connecticut is home to three high schools—Robert E. Fitch High School, Ella T. Grasso Technical High School, and Marine Science Magnet High School—serving 1,900 students in grades 9 through 12 across three models: a traditional comprehensive school in the Groton School District, a technical/vocational school in the Connecticut Technical Education and Career System, and a specialized magnet school within Learn.

Marine Science Magnet High School is the academic leader, holding the highest ranking (23rd of 141 schools, 84th percentile, 4 stars) and the highest proficiency rates in every subject—77.8% in ELA, 49.2% in math, and 77.4% in science, all above state averages. It also has the lowest free/reduced-price lunch rate (30.7%), smallest enrollment (274), lowest student-teacher ratio (10.5:1), and a 98.4% graduation rate. Ella T. Grasso Technical High School leads in attendance and completion, with the highest graduation rate (98.7%) and lowest chronic absenteeism (13.4%), though its SAT math proficiency is just 9.1% versus a 31.3% state average. Robert E. Fitch High School is the largest school (942 students), serves the most economically disadvantaged population (60.0% free/reduced-price lunch), and has the highest chronic absenteeism (25.4%), yet its test scores remain near state averages.

All three schools exceed Connecticut's 91.2% graduation rate. Spending does not align with results: Robert E. Fitch High School spends more per student ($18,655) than Marine Science Magnet High School ($16,947), yet the magnet school posts far higher test scores. Poverty does not perfectly predict outcomes either—Ella T. Grasso Technical High School's free/reduced-price lunch rate (51.6%) is close to Robert E. Fitch High School's (60.0%), but it has nearly half the chronic absenteeism and a higher graduation rate. Robert E. Fitch High School's ranking has improved steadily over three reported years, from the 53rd to the 58th percentile. Data come from different school years, so comparisons are imperfect, but the picture is clear: Marine Science Magnet High School is the academic standout, Ella T. Grasso Technical High School is the attendance and graduation leader, and Robert E. Fitch High School is the largest, most challenged, and steadily improving traditional school.

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Ranking:

E Elementary M Middle H High A Alternative P Private

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

School													Students/Teachers											Ranking (2026)				Ranking (2025)				NGSS Science (2026)	SAT English Language Arts (2026)	SAT Math (2026)	Per Pupil Expenditures (2025)
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 (2025)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	NGSS Science 11th Grade	SAT English Language Arts 11th Grade	SAT Math 11th Grade	Total
Ella T. Grasso Technical High School	Public	9-12	189 Fort Hill Rd.	Groton	06340	Southeastern Connecticut Planning Region	Connecticut Technical Education and Career System	No	No	No	No	(860) 448-0220	684	59	11.6	51.6%	253 (37.0%)	52 (7.6%)	285 (41.7%)	6 (0.9%)	7 (1.0%)	1 (0.1%)	73 (10.7%)	33.3	79^th of 135 public high schools	41.5%		30.7	86^th of 141 public high schools	39.0%	7	48.5		9.1	$30,082
Robert E. Fitch High School	Public	9-12	101 Groton Long Point Road	Groton	06340	Southeastern Connecticut Planning Region	Groton School District	No	No	No	No	(860) 449-7200	942	84	11.1	60.0%	400 (42.5%)	85 (9.0%)	244 (25.9%)	67 (7.1%)	11 (1.2%)	4 (0.4%)	127 (13.5%)	59.1	57^th of 135 public high schools	57.8%					(n/a)	57.7	56.9	33.3	$23,650
Marine Science Magnet High School	Public, Magnet	9-12	130 Shennecossett Road	Groton	06340	Southeastern Connecticut Planning Region	Learn	No	Yes	No	No	(860) 434-4800	274	26	10.5	30.7%	166 (60.6%)	4 (1.5%)	52 (19.0%)	15 (5.5%)	0 (0.0%)	0 (0.0%)	34 (12.4%)								(n/a)	77.4			$20,375

Cities Near Groton

City	Distance	# of Schools	Statewide Rank
Mystic	2.42 mi	2	100^th
New London	2.83 mi	10	174^th
Waterford	4.25 mi	5	76^th
Quaker Hill	4.96 mi	1	99^th
Stonington	6.23 mi	1	26^th

See the top CT Connecticut cities

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.